texonom/texonom-md · Datasets at Hugging Face

title stringlengths 1 544 ⌀	parent stringlengths 0 57 ⌀	created stringlengths 11 12 ⌀	editor stringclasses 1 value	creator stringclasses 4 values	edited stringlengths 11 12 ⌀	refs stringlengths 0 536 ⌀	text stringlengths 1 26k	id stringlengths 32 32
Wifi Alliance	Wifi Notion	Apr 24, 2023	Alan Jo	Alan Jo	Apr 24, 2023			7aa9d5d2a1fe4f0c82a76445897d109e
Wifi Development	Wifi Notion	Apr 24, 2023	Alan Jo	Alan Jo	Apr 24, 2023		### Wifi Development Notion \|Title\| \|:-:\| \|[WPA Supplicant](https://texonom.com/wpa-supplicant-e2cf818f24554778a16403943e9db2f7)\| \|[Connman](https://texonom.com/connman-3aded175b76b441dbc991ad0c06d55cd)\|	90eba064bdd047f3987ae37c8b71c620
Wifi Direct	Wifi Notion	Apr 24, 2023	Alan Jo	Alan Jo	Jun 20, 2023	[P2P](https://texonom.com/p2p-404e19bb6c8e43c68540792b5fa4a9d0) [Bluetooth](https://texonom.com/bluetooth-19e87e4710b3439096fd21eedd367669)	## Simple AP 네트워크 없이 미디어를 스트리밍가능 IEEE 802.11 표준에서 정의한 기존 Wi-Fi Ad-hoc 네트워킹의 기능이 더 풍부하고 안전하며 스마트한 버전입니다 Bluetooth의 더 긴 범위와 더 빠른 속도 형태라고도 생각가능 ### Wifi Direct Standards \|Title\| \|:-:\| \|[DLNA](https://texonom.com/dlna-cd2ef3daabb242ada41cb5d24e344f5a)\| \|[Miracast](https://texonom.com/miracast-785cc55b03b041de9254b9b396197d34)\| > [Miracast x DLNA - Diferenças](https://www.youtube.com/watch?v=rxOINjfUtKw) > [DLNA와 '와이파이 다이렉트'의 차이점은 무엇입니까? 📺](https://www.kr-tech.gelsonluz.com/2022/05/dlna-what-is-differ_30.html)	1862325f0909447ea1810e7689d78153
Wifi Protocol	Wifi Notion	Jul 15, 2022	Alan Jo	Alan Jo	Jul 15, 2022		### Wifi Protocols \|Title\| \|:-:\| \|[WEP](https://texonom.com/wep-6b50d3c6a81e4d138d412c2d34d7705b)\| \|[WPA](https://texonom.com/wpa-0ae76b317be74d0b8feb0a55935a3d1e)\| \|[WPA2](https://texonom.com/wpa2-267b10373adf4d6fbf54b8c49385f205)\| \|[Wpa2-AES](https://texonom.com/wpa2-aes-46254b58f49e4a8dbd8adc2fe881c417)\| \|[WPA3](https://texonom.com/wpa3-2a242a538b6c4e5bae4360daa9f76fd9)\| ![](https://www.notion.so/image/https%3A%2F%2Fs3-us-west-2.amazonaws.com%2Fsecure.notion-static.com%2Ff10ab80d-fc8c-4dfd-b44c-0d17981a2069%2FUntitled.png?table=block&id=db888f06-9ca0-4f8e-9d55-6d17f7e402d6&cache=v2)	00a0308b3ebc4df4b4dee0e4700419ad
Wifi Version	Wifi Notion	Jul 15, 2022	Alan Jo	Alan Jo	Nov 7, 2022		### Wifi Versions \|Title\| \|:-:\| \|[Wi-Fi 6E](https://texonom.com/wi-fi-6e-9554d4d9ba6c45439b7cd187598f9ce8)\| \|[Wifi 5](https://texonom.com/wifi-5-b8005adacc0c4e839aae0025307acee2)\| \|[Wifi 4](https://texonom.com/wifi-4-8f17abdf4e634855a8ce3bb72ae1ddf6)\| \|[Wifi 6](https://texonom.com/wifi-6-d4f7c726734143a59577e1e01b534dc3)\|	bc44859a51ab4974a23ea4ea261626c7
AES	WIFI Algorithms	Mar 8, 2020	Alan Jo	Alan Jo	Jul 15, 2022		RC4버린 젤 강한넘	7aa513e54c1448d49ddd1b9e5dd2fa3a
PSK	WIFI Algorithms	Mar 8, 2020	Alan Jo	Alan Jo	Jul 15, 2022		### Pre shared Key in wep rc4 기반 4WAY HANDSHAKE psk 랑 5 parameter로 1대1대칭키 계산 - network ssid - anounce - snouce - amac address - smac address nounce는 난수임	76c43a6f32b74ae2ba8ac63ddc0dee24
RC4	WIFI Algorithms	Mar 8, 2020	Alan Jo	Alan Jo	Jul 15, 2022			3929ee6b2cfe496a86860e6f3826bca7
TKIP	WIFI Algorithms	Mar 8, 2020	Alan Jo	Alan Jo	Jul 15, 2022		rc4 보완인데 key mixing 을 해서 iv + temporary key 속도도 AES보다 느리고 보안도 약함 취약하지만 까다로움	8e980faf36ed423caa140c41398b6902
Connman	Wifi Development Notion	Apr 24, 2023	Alan Jo	Alan Jo	Apr 24, 2023			3aded175b76b441dbc991ad0c06d55cd
WPA Supplicant	Wifi Development Notion	Apr 24, 2023	Alan Jo	Alan Jo	Apr 24, 2023			e2cf818f24554778a16403943e9db2f7
DLNA	Wifi Direct Standards	Jun 20, 2023	Alan Jo	Alan Jo	Jun 20, 2023		## Standard 홈 네트워크가 중앙 서버 역할	cd2ef3daabb242ada41cb5d24e344f5a
Miracast	Wifi Direct Standards	Apr 24, 2023	Alan Jo	Alan Jo	Jun 20, 2023		두 장치 간의 직접 연결	785cc55b03b041de9254b9b396197d34
WEP	Wifi Protocols	Mar 8, 2020	Alan Jo	Alan Jo	Jul 15, 2022		### 1999 Standark - risky 요새 거의 안씀 ### 키에 iv를 추가해서 평문과 xor연산을 통해 암호화 RC4 이용 [RC4](https://texonom.com/rc4-aaf4944088754b2cbb9ee20701c1d933) $$(initialization vector) 24bit + (key) 40 bit = (keystream) 64bit$$ 또는 keystream 128비트 3가지 종류 (24 + 104) 256 (24 + 232) iv가 공격대랑이라서 3개 별차이 없이 위험 iv를 사용하는 이유 - 동일한 평문 동일한 키로 암호화하면 동일한 결과 다른 iv면 다른 결과 키 같아도 ![](https://www.notion.so/image/https%3A%2F%2Fs3-us-west-2.amazonaws.com%2Fsecure.notion-static.com%2F1758d413-5168-4536-925a-d8624b3975a9%2FUntitled.png?table=block&id=7f0f9f23-8344-4c7d-a493-83e2119f855d&cache=v2) ![](https://www.notion.so/image/https%3A%2F%2Fs3-us-west-2.amazonaws.com%2Fsecure.notion-static.com%2Fabd66afa-b5bc-47a1-a0f5-954aeacf0e38%2FUntitled.png?table=block&id=3cbf7aa3-1c17-4f0f-b39a-81543c1ee064&cache=v2) 3바이트 iv중 첫바이트가 키스트림 몇번째 바이트 해당 iv인지 나와있는데 그게 weakness iv 라고 한다 wiv는 바뀌는데 key그대로라서 여러wiv로 key유추가능	6b50d3c6a81e4d138d412c2d34d7705b
WPA	Wifi Protocols	Mar 8, 2020	Alan Jo	Alan Jo	Jul 15, 2022		### wep 보완 위해서 wpa는 key도 일정 속도나 트래픽 이후 바뀜 key 256비트라 또 엄청길다 message integrity check 도 한다 4 way handshake ![](https://www.notion.so/image/https%3A%2F%2Fs3-us-west-2.amazonaws.com%2Fsecure.notion-static.com%2Ff03f2efa-4847-4d64-8cf3-232cf3a8db30%2FUntitled.png?table=block&id=7377a209-97e9-4f66-859f-26bee1d9eb39&cache=v2) 공유키 인증방식 사용해서 handshake당시 패킷 가로채면 문제발생 해커는 dos공격으로 연결끊고 클라이언트가 요청 보낼때 handshake 가로챔 키값안에 brute force attack(무식 때려박)이나 dictionary attack (자주쓰는애들 모임)함 rc4이긴 한데 상관없고 공유키방식이 문제	0ae76b317be74d0b8feb0a55935a3d1e
WPA2	Wifi Protocols	Mar 8, 2020	Alan Jo	Alan Jo	Jul 15, 2022		aew 이긴 한데 공유키방식 그대로라 해킹가능	267b10373adf4d6fbf54b8c49385f205
Wpa2-AES	Wifi Protocols	Mar 8, 2020	Alan Jo	Alan Jo	Jul 15, 2022		이상 방식으로 추천 wes3 이상 추천	46254b58f49e4a8dbd8adc2fe881c417
WPA3	Wifi Protocols	Mar 8, 2020	Alan Jo	Alan Jo	Jul 15, 2022		취약점 있긴 함 dragon blood cve-2019-9494	2a242a538b6c4e5bae4360daa9f76fd9
RC4	WEP	null	null	null	null	null	평문 전체 한번에 암호화가 아니라 1비트나 바이트 워드 단위로 하나씩 연속적 암호화 방식	aaf4944088754b2cbb9ee20701c1d933
Wi-Fi 6E	Wifi Versions	Nov 24, 2021	Alan Jo	Alan Jo	Apr 24, 2023		802.11ax but 6Ghz > [티피링크 Wi-Fi 6E 공유기, CES2022 혁신상 수상](http://www.cctvnews.co.kr/news/articleView.html?idxno=231768)	9554d4d9ba6c45439b7cd187598f9ce8
Wifi 4	Wifi Versions	Apr 24, 2023	Alan Jo	Alan Jo	Apr 24, 2023		## 802.11n	8f17abdf4e634855a8ce3bb72ae1ddf6
Wifi 5	Wifi Versions	Apr 24, 2023	Alan Jo	Alan Jo	Apr 24, 2023		### 802.11ac	b8005adacc0c4e839aae0025307acee2
Wifi 6	Wifi Versions	Apr 24, 2023	Alan Jo	Alan Jo	Apr 24, 2023		## 802.11ax	d4f7c726734143a59577e1e01b534dc3
Access Point	Wifi Usages	Mar 1, 2020	Alan Jo	Alan Jo	Jul 15, 2022	[Router](https://texonom.com/router-d2dcafa7c3f14adca0ae897779e1c27c)	## Hot Spot access point 라우터 = ap = access point = 공유기 - DHCP 해주는 녀석 (모뎀포함) 의 이름 SSID > [[AP, 엑세스 포인트, 핫 스팟, 와이파이, 테더링, 페어링] 의 용어 설명](https://m.blog.naver.com/kumdongil/221174663337) > [공유기와 AP의 차이점은?](https://m.blog.naver.com/PostView.nhn?blogId=futuremain&logNo=221618229181&categoryNo=15&proxyReferer=https%3A%2F%2Fwww.google.com%2F)	1cc0242c057a401593218d2e91f1e885
wifi extender	Wifi Usages	May 19, 2020	Alan Jo	Alan Jo	Jul 15, 2022			599de8e7312d49cd8fcdc8742e04bb21
Wifi NFC	Wifi Usages	Jul 15, 2022	Alan Jo	Alan Jo	Jul 25, 2022	[NFC](https://texonom.com/nfc-fd5618cf689a4bc08cdb222870abcb70)	nfc 로 wifi 연결	43a307d4f05946f88f00e79237cb4913
Wifi QRCode	Wifi Usages	Jul 15, 2022	Alan Jo	Alan Jo	Nov 7, 2022		[wifi-card](https://github.com/bndw/wifi-card) > [bndw/wifi-card](https://github.com/bndw/wifi-card?utm_source=tldrnewsletter)	bbc34e2e10024c90b24d187424719fba
Wifi Security	Wifi Usages	Jul 15, 2022	Alan Jo	Alan Jo	Nov 7, 2022	[Wifi Protocol](https://texonom.com/wifi-protocol-00a0308b3ebc4df4b4dee0e4700419ad)	> [해커로부터 안전한 와이파이 만들기 [WiFi취약점/무선랜보안]](https://www.youtube.com/watch?v=ReOyLq-Bn2U&t=111s) > [8 Life Hacks to Improve Your Everyday Financial Habits](https://gizmodo.com/8-life-hacks-to-improve-your-everyday-financial-habits-1849740710)	5e7166c2d33341e58044d0493b69de1c
BCI	Communication Engineering Notion	Aug 12, 2020	Alan Jo	Alan Jo	Jul 28, 2023	[Robotics](https://texonom.com/robotics-1c93b96b04a8423688234837d30ff35e) [Wireheading](https://texonom.com/wireheading-1eb526ecdf344731bebc47751739e2f4)	### Brain Machine Interface / Brain Computer Interface (BCI / BMI) 언젠가 인류는 하나의 정신 집합체가 될 것 지금도 육체적으로 개별적인 원격 세포 정신 집합체로 가상화시킬 수도 있다 1. 가역적인 p2p 링크 생성 및 삭제가 하드웨어의 핵심 2. 서로에 대한 정보 엑세스 레벨 컨트롤이 소프트웨어의 핵심 3. 비가역적인 인격체 합일을 하는 방향성까지 진행될 지는 의문 > 인간 발전 과정에서 학습없는 지식 습득은 의식하지 않아도 필연적으로 이루어질 것이다 ### BCI Notion \|Title\| \|:-:\| \|[Brain Sync](https://texonom.com/brain-sync-5888823194bc451a84cd1e495af680e4)\| \|[BCI Industry](https://texonom.com/bci-industry-fbfea5ccf7ed41e68a86e00de6a8ca44)\| \|[BCI History](https://texonom.com/bci-history-4d2464e758a349fd890abb4b709c5f34)\| > [This ultra-small probe promises to record neuron activity without invasive surgery](https://interestingengineering.com/innovation/mev-probe-records-neuron-activity) ### Wirelessly could be dangerous? > [Scientists connect human brain to computer wirelessly for first time ever](https://www.independent.co.uk/life-style/gadgets-and-tech/brain-computer-interface-braingate-b1825971.html?utm_source=tldrnewsletter)	e7b6d2a55d19435b9d3f8990441cab9e
Communication channel	ICT Usages	Sep 17, 2023	Alan Jo	Alan Jo	Sep 17, 2023		### Communication channels \|Title\| \|:-:\| \|[Transmission medium](https://texonom.com/transmission-medium-b1d1c770846e4ade94a9a9ec28e5b97e)\| > [Communication channel](https://en.wikipedia.org/wiki/Communication_channel)	8dfafadf7e2e4649b6f622765a28b5a1
Communication Device	Communication Engineering Notion	Jan 2, 2022	Alan Jo	Alan Jo	Jan 2, 2022		### Communication Devices \|Title\| \|:-:\| \|[Quartz Oscillator](https://texonom.com/quartz-oscillator-d4da21f9e169470c8fc09fda6e6ecc8f)\|	25eee8b5122f47af812612e03b882038
Computer Network	Communication Engineering Notion	Nov 5, 2019	Alan Jo	Seong-lae Cho	Apr 7, 2023	[Information Theory](https://texonom.com/information-theory-94b3195406d94eae82b530c49b55f81a) [Streaming](https://texonom.com/streaming-fb4a7c94d01a4a0abfd6bdb910422fd4) [Network Theory](https://texonom.com/network-theory-dca2782efdaa44bb82e875db9fc73ea6)	### Network Notion \|Title\| \|:-:\| \|[Network Type](https://texonom.com/network-type-c6be51f020bd443aa7fc009b7b951d1d)\| \|[Network Flow](https://texonom.com/network-flow-ab92ae4686cc41ebaa619aa6415cb3e4)\| \|[Network Topology](https://texonom.com/network-topology-e40ba3565a5f4c29a7664c164fbff948)\| \|[Network Term](https://texonom.com/network-term-b3ba2d3ab17c46f5949fd763d18abc27)\| \|[Network Traffic](https://texonom.com/network-traffic-046803797abd42938cc59025cd8c75e6)\| > [Computer Networking Fundamentals](https://iximiuz.com/en/series/computer-networking-fundamentals/)	1a1e567a499d4c94bfae0b92a25d44f3
Lifi	Communication Engineering Notion	Mar 3, 2023	Alan Jo	Alan Jo	Jul 18, 2023	[LASER](https://texonom.com/laser-f7fe0f0cf2fa49628a97af536c820a6e) [Wifi](https://texonom.com/wifi-34690fdeeac24f9dbf0350480179cbc6)	### Light Fidelity ### Lifi Companies \|Title\| \|:-:\| \|[Aalyria](https://texonom.com/aalyria-30f9b99b59b14b908783f26db39602c3)\| \|[Transcelestial](https://texonom.com/transcelestial-45702dfeb4ae44a78e9881c160285686)\| \|[Lifi Router](https://texonom.com/lifi-router-e91a77307a45480dba17825a0d7cea9c)\| ### IEEE 802.11bb > [100x Faster Than Wi-Fi: Li-Fi, Light-Based Networking Standard Released](https://www.tomshardware.com/news/li-fi-standard-released) ### Fast Speed > [LED 빛으로 데이터를 전송하는 라이파이(Li-fi)란?](https://www.samsungsemiconstory.com/2173) > [빛에서 데이터가 비처럼 내려오다! 라이파이(Li-Fi) 기술의 모든 것 \| 삼성디스플레이 뉴스룸](https://news.samsungdisplay.com/21247) > [라이파이](https://ko.wikipedia.org/wiki/%EB%9D%BC%EC%9D%B4%ED%8C%8C%EC%9D%B4) > [Infrared may no longer be a punchline, as IEEE approves 9.6Gbps wireless light](https://www.theverge.com/23795599/li-fi-wi-fi-802-11-bb-internet-of-light)	b97b88bc77414bb4a27ced28423f960f
BCI History	BCI Notion	May 30, 2023	Alan Jo	Alan Jo	May 30, 2023		### 1959 > [NCBI - WWW Error Blocked Diagnostic](https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1363130/) ### 1962 > [NCBI - WWW Error Blocked Diagnostic](https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1359523/)	4d2464e758a349fd890abb4b709c5f34
BCI Industry	BCI Notion	May 30, 2023	Alan Jo	Alan Jo	May 30, 2023		### BCI Companies \|Title\| \|:-:\| \|[Neural Link](https://texonom.com/neural-link-94da81aa657249198eb68c69ee93cd53)\| \|[Synchron](https://texonom.com/synchron-1ca29a99bf6a483999002e614628d56e)\| ### Human Brain > [A $50,000 Helmet That Can Read Human Mind Is Now Selling in US](https://gadgets.ndtv.com/wearables/news/kernel-helmet-price-usd-50000-read-human-mind-analyse-brain-ceo-bryan-johnson-2466256?utm_source=tldrnewsletter)	fbfea5ccf7ed41e68a86e00de6a8ca44
Brain Sync	BCI Notion	May 30, 2023	Alan Jo	Alan Jo	May 30, 2023		### Monkey > [China syncs monkey brain with a computer in a 'world first' experiment](https://interestingengineering.com/science/china-syncs-monkey-brain-with-a-computer) ### Fly Brain > [Scientists hack fly brains to make them remote controlled](https://newatlas.com/science/fly-brains-hack-remote-controlled/) ### Robot Arm > [Brain-machine interface helped a man with paralysis feed himself using robotic arms \| Engadget](https://www.engadget.com/robotic-arms-paralyzed-man-feeds-himself-040057103.html) ### Rat > [Scientist Who Trained Rats to Play "Doom II" Says He May Start Twitch Channel](https://futurism.com/viktor-toth-doom-rat)	5888823194bc451a84cd1e495af680e4
Telepathy	Communication Notion	Aug 25, 2022	Alan Jo	Alan Jo	Aug 25, 2022			eed062c5b6fc4fc183368b1c081b311b
Neural Link	BCI Companies	Aug 31, 2020	Alan Jo	Alan Jo	Feb 21, 2023		[Link 0.9](https://texonom.com/link-09-111efc48314145d196f105a2a39b4edf) [Neuralink V2](https://texonom.com/neuralink-v2-586b3384836a43fab1de3d861c97e69f) > [High-bandwidth wireless BCI demonstrated in humans for first time](https://arstechnica.com/science/2021/04/new-high-bandwidth-wireless-bci-helps-tetraplegics-use-tablet-computers/?utm_source=tldrnewsletter) > [Full Page Reload](https://spectrum.ieee.org/tech-talk/biomedical/bionics/exclusive-neuralinks-goal-of-bestinworld-bmi?utm_source=tldrnewsletter)	94da81aa657249198eb68c69ee93cd53
Synchron	BCI Companies	Aug 31, 2020	Alan Jo	Alan Jo	Feb 21, 2023		> [Synchron](https://synchron.com/) > [FDA clears Synchron's brain-computer interface device for human trials \| Engadget](https://www.engadget.com/fda-brain-computer-interface-clinical-trial-synchron-stentrode-190232289.html?utm_source=tldrnewsletter) > [The Age of Brain-Computer Interfaces Is on the Horizon](https://www.wired.com/story/synchron-brain-computer-interface/) > [Brain implant startup backed by Bezos and Gates is testing mind-controlled computing on humans](https://www.cnbc.com/2023/02/18/synchron-backed-by-bezos-and-gates-tests-brain-computer-interface.html)	1ca29a99bf6a483999002e614628d56e
Link 0.9	Neural Link	null	null	null	null	null		111efc48314145d196f105a2a39b4edf
Neuralink V2	Neural Link	null	null	null	null	null		586b3384836a43fab1de3d861c97e69f
Transmission medium	Communication channels	Sep 9, 2023	Alan Jo	Alan Jo	Sep 17, 2023		### Transmission mediums \|Title\| \|:-:\| \|[Guided medium](https://texonom.com/guided-medium-a1a0e4d8cbe44c768c0fec6733dbb091)\| \|[Unguided medium](https://texonom.com/unguided-medium-e9159be87b234474a4d295e272bf13d8)\| > [Transmission medium](https://en.wikipedia.org/wiki/Transmission_medium)	b1d1c770846e4ade94a9a9ec28e5b97e
Guided medium	Transmission mediums	Sep 9, 2023	Alan Jo	Alan Jo	Sep 9, 2023		유선	a1a0e4d8cbe44c768c0fec6733dbb091
Unguided medium	Transmission mediums	Sep 9, 2023	Alan Jo	Alan Jo	Sep 9, 2023		무선	e9159be87b234474a4d295e272bf13d8
Quartz Oscillator	Communication Devices	Jan 2, 2022	Alan Jo	Alan Jo	Jan 2, 2022		결정 진동자 수정진동자 Quartz Crystal이 석영	d4da21f9e169470c8fc09fda6e6ecc8f
Network Flow	Network Notion	Feb 3, 2020	Alan Jo	Alan Jo	Jan 15, 2023		네트워크 플로우란 기존 그래프에서 아크에 용량capacity 제한이 있는 경우입니다 포드 풀커슨의 알고리즘 포드 풀커슨에서는 잔여 네트워크(residual network)라는 것을 사용 ### Network Algorithms \|Title\| \|:-:\| \|[Max Flow Algorithm](https://texonom.com/max-flow-algorithm-2e375172a1074928ab855a95aea036dd)\| \|[ 대기행렬 이론](https://texonom.com/662d91ba8d45455580cd16dde5d28a9d)\| ### Network Flow Notion \|Title\| \|:-:\| \|[Routing](https://texonom.com/routing-c445d7e73cef4b4391499a42127ab20a)\| \|[Congestion Control](https://texonom.com/congestion-control-1b5b6761042c4199ac20fd1d3c4395c2)\| \|[Network Error Control](https://texonom.com/network-error-control-9988512897234fe69f50e4f2ae7d8f24)\| > [(Algorithm) 네트워크 플로우(network flow)](https://www.zerocho.com/category/Algorithm/post/5893405b588acb00186d39e0)	ab92ae4686cc41ebaa619aa6415cb3e4
Network Term	Network Notion	Mar 20, 2021	Alan Jo	Alan Jo	Oct 9, 2021		### Network Terms \|Title\| \|:-:\| \|[circuit switching](https://texonom.com/circuit-switching-bb91d8c75a4e49a88da40cfae50d00c1)\| \|[Endpoint](https://texonom.com/endpoint-cc5ba0a30564424f80ffa00da78c4f0c)\| \|[CRC](https://texonom.com/crc-b813d9da08324f45bd02947a6410f125)\| \|[Network Link](https://texonom.com/network-link-4357ce36769043518a9b7ca916862f77)\|	b3ba2d3ab17c46f5949fd763d18abc27
Network Topology	Network Notion	Feb 23, 2020	Alan Jo	Alan Jo	Jun 28, 2021		네트워크(Network)란 연결된 형태를 말합니다 네트워크 토폴로지는 배치형태, 망구성방식을 말합니다 - Logical Structure - 데이터의 흐름 - Physical Structure - 연결 구조 ### Network Topologies \|Title\| \|:-:\| \|[Bus Topology](https://texonom.com/bus-topology-bbc49275be94494eb788a17bcb895a95)\| \|[Mash Topology](https://texonom.com/mash-topology-71165aab8c4845118662379c0bb38efe)\| \|[Ring Topology](https://texonom.com/ring-topology-d111e1403e8f487ebced0d66d714212a)\| \|[Star Topology](https://texonom.com/star-topology-e826cdadf92f4f54b4d5eacb5aefc123)\| > [네트워크 토폴로지(Network Topology) 정의 및 종류입니다.](https://m.blog.naver.com/PostView.nhn?blogId=brickbot&logNo=220418950837&proxyReferer=https%3A%2F%2Fwww.google.com%2F)	e40ba3565a5f4c29a7664c164fbff948
Network Traffic	Network Notion	Jan 23, 2022	Alan Jo	Alan Jo	May 23, 2023	[Cloudflare Radar](https://texonom.com/cloudflare-radar-e925e6c5f3da4336a9367248373db00c)	### Network Traffic Tools \|Title\| \|:-:\| \|[Sniffnet](https://texonom.com/sniffnet-e3719706153249b4a6402dbf7cc5568d)\|	046803797abd42938cc59025cd8c75e6
대기행렬 이론	Network Algorithms	Aug 17, 2020	Alan Jo	Alan Jo	Jan 15, 2023		[큐잉 모델](https://texonom.com/7ab2f80743a04887a0c8775ad21c7d59) > [02. 대기행렬이론(Queueing theory)](https://m.blog.naver.com/PostView.nhn?blogId=ronation&logNo=20197336077&proxyReferer=https:%2F%2Fwww.google.com%2F)	662d91ba8d45455580cd16dde5d28a9d
Max Flow Algorithm	Network Algorithms	Mar 1, 2020	Alan Jo	Alan Jo	Jan 15, 2023		가중치가 있는 방향그래프(directed graph) G와 시작(source) 노드 s, 도착(sink) 노드 t가 주어졌을 때 각 엣지의 용량(capacity)을 고려하여 s에서 t로 흘려보낼 수 있는 최대 유량(flow)을 구하는 알고리즘을 가리킴 ### MFA Terms \|Title\| \|:-:\| \|[cancellation](https://texonom.com/cancellation-ba8fedc1cb8d477f88a0148acd2d1d32)\| \|[residual network](https://texonom.com/residual-network-2131e9ec2bc8417e8c0d34b991491009)\| \|[augmenting path](https://texonom.com/augmenting-path-ccba03a18a794885aa40c0456fbb8850)\| \|[flow](https://texonom.com/flow-ec310298261c44b9bc1f8bd2a29590ae)\| \|[capacity](https://texonom.com/capacity-1be259baff2946309d8ccea56ec7356c)\| \|[source](https://texonom.com/source-2e4af35b980b4263b01ac1dfbd518d1c)\| \|[sink](https://texonom.com/sink-9ac2036f6c0c44ed8f4fc98f09b6afa1)\| \|[residual capacity](https://texonom.com/residual-capacity-e98f6510dd4747e6bd4f0de4b22babdd)\| ### Ford-Fulkerson Algorithm > ![](https://www.notion.so/image/https%3A%2F%2Fs3-us-west-2.amazonaws.com%2Fsecure.notion-static.com%2F0c4d0de4-a287-4ccf-8180-b66660291f88%2FUntitled.png?table=block&id=0aa324cb-08be-4393-ab90-f9299b697867&cache=v2) > ### edge max bandwidth is static, change direction ### 에드먼드-카프 알고리즘 > [최대 유량 알고리즘 (1)](https://ratsgo.github.io/data%20structure&algorithm/2017/11/29/maxflow/) > [네트워크 플로우(network flow) & 포드 -풀커슨 &에드먼트-카프 알고리즘 (1)](https://m.blog.naver.com/PostView.nhn?blogId=jh20s&logNo=221298145631&proxyReferer=https%3A%2F%2Fwww.google.com%2F)	2e375172a1074928ab855a95aea036dd
큐잉 모델	대기행렬 이론	null	null	null	null	null		7ab2f80743a04887a0c8775ad21c7d59
에드먼드-카프 알고리즘	Max Flow Algorithm	null	null	null	null	null		be8df5f767e043e5ba41305301a742c7
Ford-Fulkerson Algorithm	Max Flow Algorithm	null	null	null	null	null	![](https://www.notion.so/image/https%3A%2F%2Fs3-us-west-2.amazonaws.com%2Fsecure.notion-static.com%2F0c4d0de4-a287-4ccf-8180-b66660291f88%2FUntitled.png?table=block&id=0aa324cb-08be-4393-ab90-f9299b697867&cache=v2) ### edge max bandwidth is static, change direction > [Ford–Fulkerson algorithm](https://en.wikipedia.org/wiki/Ford–Fulkerson_algorithm)	1ca000c59c414de38e2370bba059ebef
augmenting path	MFA Terms	Mar 1, 2020	Alan Jo	Alan Jo	Jan 15, 2023			ccba03a18a794885aa40c0456fbb8850
cancellation	MFA Terms	Mar 1, 2020	Alan Jo	Alan Jo	Jan 15, 2023			ba8fedc1cb8d477f88a0148acd2d1d32
capacity	MFA Terms	Mar 1, 2020	Alan Jo	Alan Jo	Jan 15, 2023			1be259baff2946309d8ccea56ec7356c
flow	MFA Terms	Mar 1, 2020	Alan Jo	Alan Jo	Jan 15, 2023			ec310298261c44b9bc1f8bd2a29590ae
residual capacity	MFA Terms	Mar 1, 2020	Alan Jo	Alan Jo	Jan 15, 2023			e98f6510dd4747e6bd4f0de4b22babdd
residual network	MFA Terms	Mar 1, 2020	Alan Jo	Alan Jo	Jan 15, 2023			2131e9ec2bc8417e8c0d34b991491009
sink	MFA Terms	Mar 1, 2020	Alan Jo	Alan Jo	Jan 15, 2023			9ac2036f6c0c44ed8f4fc98f09b6afa1
source	MFA Terms	Mar 1, 2020	Alan Jo	Alan Jo	Jan 15, 2023			2e4af35b980b4263b01ac1dfbd518d1c
Network Error Control	Network Flow Notion	Jan 17, 2023	Alan Jo	Alan Jo	Jan 17, 2023		### Network Error Control Methods \|Title\| \|:-:\| \|[Go back N](https://texonom.com/go-back-n-ec4e2ab218d6424f88e80131f0abd8b6)\| \|[Selective Repeat](https://texonom.com/selective-repeat-13fa979d7e8347df899bd802160d7531)\|	9988512897234fe69f50e4f2ae7d8f24
Routing	Network Flow Notion	Jan 10, 2021	Alan Jo	Alan Jo	Jan 15, 2023	[Network Topology](https://texonom.com/network-topology-e40ba3565a5f4c29a7664c164fbff948)	- DNS Routing - IPv4 Routing - IPv6 Routing ### Routing Notion \|Title\| \|:-:\| \|[Autonomous System](https://texonom.com/autonomous-system-d004131c80a143e1a394bea17bbf6a53)\| ### Routing Usage \|Title\| \|:-:\| \|[Routing Protocol](https://texonom.com/routing-protocol-265a997369004c2ba7e6a51ea0759404)\| \|[Routing Table](https://texonom.com/routing-table-c4494fedc0c04aa49dd388ad87bf3210)\|	c445d7e73cef4b4391499a42127ab20a
Go back N	Network Error Control Methods	Jan 17, 2023	Alan Jo	Alan Jo	Jan 17, 2023			ec4e2ab218d6424f88e80131f0abd8b6
Selective Repeat	Network Error Control Methods	Jan 17, 2023	Alan Jo	Alan Jo	Jan 17, 2023			13fa979d7e8347df899bd802160d7531
Autonomous System	Routing Notion	Oct 5, 2021	Alan Jo	Alan Jo	Oct 6, 2021	[BGP](https://texonom.com/bgp-b507706ab6934511a1633fd6047294ee)	# AS 하나의 단일 기관 하에서도 동일한 정책으로 관리되는 네트워크와 라우터 그룹 Autonomous systems typically belong to ISPs or other large high-tech organizations [ASN](https://texonom.com/asn-87c15a6f25ac49a3887481508b3e2f19) [IANA](https://texonom.com/iana-9f3d57997f34470db49e90a6f2630be2) [RIRs](https://texonom.com/rirs-178d7b4d89d842dda3f377565a68a2ac) Each autonomous system have a registered ASN Internet Assigned Numbers Authority (IANA) assigns ASNs to Regional Internet Registries which then assigns them to ISPs and networks ASNs are 16 bit numbers between 1 and 65534 and 32 bit numbers between 131072 and 4294967294. As of 2018, there are approximately 64,000 ASNs in-use worldwide. These ASNs are only required for external BGP	d004131c80a143e1a394bea17bbf6a53
ASN	Autonomous System	null	null	null	null	null	autonomous system number	87c15a6f25ac49a3887481508b3e2f19
IANA	Autonomous System	null	null	null	null	null	## Internet Assigned Numbers Authority	9f3d57997f34470db49e90a6f2630be2
RIRs	Autonomous System	null	null	null	null	null	## Regional Internet Registries	178d7b4d89d842dda3f377565a68a2ac
Routing Protocol	Routing Usage	Oct 5, 2021	Alan Jo	Alan Jo	Oct 6, 2021		### Routing Protocols \|Title\| \|:-:\| \|[Static Routing Protocol](https://texonom.com/static-routing-protocol-70300573b924493cbe7434b331741aea)\| \|[Dynamic Routing Protocol](https://texonom.com/dynamic-routing-protocol-f4320515c5c54a3395b3d8c7c6ab5ff6)\| > [IGP (Interior Gateway Protocol)](https://m.blog.naver.com/PostView.naver?isHttpsRedirect=true&blogId=bi1189&logNo=221535779617)	265a997369004c2ba7e6a51ea0759404
Routing Table	Routing Usage	Oct 5, 2021	Alan Jo	Alan Jo	Oct 6, 2021		### Routing Tables \|Title\| \|:-:\| \|[Distance Vector Table](https://texonom.com/distance-vector-table-9470e6ee36dc49a0bd3ac98f75ce13db)\| \|[Link State Table](https://texonom.com/link-state-table-1578e26e0afb4546a8170907113315f4)\| > [IGP (Interior Gateway Protocol)](https://m.blog.naver.com/PostView.naver?isHttpsRedirect=true&blogId=bi1189&logNo=221535779617)	c4494fedc0c04aa49dd388ad87bf3210
Dynamic Routing Protocol	Routing Protocols	Oct 5, 2021	Alan Jo	Alan Jo	Oct 6, 2021		자동으로 라우팅 테이블 갱신 트래픽 증가, 복잡, 관리용이 ### Dynamic Routing Protocols \|Title\| \|:-:\| \|[IGP](https://texonom.com/igp-50b36db9d24a4ddf9484606e698b24a4)\| \|[EGP](https://texonom.com/egp-7daf5fbe068f449fbaa62d9f6cc1cbea)\| ![](https://www.notion.so/image/https%3A%2F%2Fs3-us-west-2.amazonaws.com%2Fsecure.notion-static.com%2F6ad4fc7a-aa9a-44b4-ad05-c768bca2f03f%2FUntitled.png?table=block&id=38e5d060-84f2-4d3a-9cd3-afefae2cfa03&cache=v2) > [IGP (Interior Gateway Protocol)](https://m.blog.naver.com/PostView.naver?isHttpsRedirect=true&blogId=bi1189&logNo=221535779617)	f4320515c5c54a3395b3d8c7c6ab5ff6
Static Routing Protocol	Routing Protocols	Oct 5, 2021	Alan Jo	Alan Jo	Oct 5, 2021		수동으로 라우팅 테이블을 설정하고 갱신 트래픽 감소, 단순, 관리의 어려움 ### Static Routing Protocols \|Title\| \|:-:\|	70300573b924493cbe7434b331741aea
EGP	Dynamic Routing Protocols	Oct 5, 2021	Alan Jo	Alan Jo	Oct 5, 2021		## Exterior Gateway routing Protocol 다른 그룹과 라우팅 정보를 교환하는 프로토콜 외부 경로 설정을 위한 Protocol ### EGPs \|Title\| \|:-:\| \|[eBGP](https://texonom.com/ebgp-2104171759044cbc9ce7b026f613ab17)\| \|[BGP](https://texonom.com/bgp-b507706ab6934511a1633fd6047294ee)\|	7daf5fbe068f449fbaa62d9f6cc1cbea
IGP	Dynamic Routing Protocols	Oct 5, 2021	Alan Jo	Alan Jo	Oct 6, 2021		## Internal Gateway routing Protocol 임의의 Autonomous System 내부에서 동작하는 라우팅 정보를 교환사 프로토콜 ### IGPs \|Title\| \|:-:\| \|[IS-IS](https://texonom.com/is-is-fe3730f98bb84f9cb2d01a4635b83c05)\| \|[OSPF](https://texonom.com/ospf-2134804df16a4d399ca00dfba63cfdb0)\| \|[Routing Information Protocol](https://texonom.com/routing-information-protocol-efcdf062ffc047e786d68c5e7041b9b1)\| \|[IGRP](https://texonom.com/igrp-2bcbf41d84134ec9866a1753f7b827c6)\| > [IGP & EGP 차이점 - 라우팅 프로토콜 개념](https://m.blog.naver.com/PostView.naver?isHttpsRedirect=true&blogId=yoodh0713&logNo=221578462264) > [IGP (Interior Gateway Protocol)](https://m.blog.naver.com/PostView.naver?isHttpsRedirect=true&blogId=bi1189&logNo=221535779617)	50b36db9d24a4ddf9484606e698b24a4
BGP	EGPs	Oct 5, 2021	Alan Jo	Alan Jo	Feb 19, 2022	[Korea ISP](https://texonom.com/korea-isp-557fd6cedc924300b47396c0cad2abf3) [Routing](https://texonom.com/routing-c445d7e73cef4b4391499a42127ab20a)	## Border Gateway Protocol ### postal service of the Internet who can break internet mechanism to exchange routing information between autonomous systems [eBGP](https://texonom.com/ebgp-7fc0c974f06d4eadbd0217e3851665e5) [iBGP](https://texonom.com/ibgp-b341aee18c3648a2bbf67d63edbafc47) 주 경로 지정을 담당하는 TCP Based 프로토콜의 한 종류 2008년에는 유튜브의 반이슬람 동영상이 자국민을 자극할 것을 우려한 파키스탄 정부의 명령으로 접속 차단을 위해 생겨난 가짜 라우팅 경로가 BGP 구성 오류로 인해 전 세계로 퍼져나가, 자국의 국경을 넘어 전 세계의 유튜브 접속을 2시간 동안 차단 버라이즌이 잘못된 BGP 경로를 전파하는 바람에 인터넷 전체 트래픽의 상당 부분이 접속 장애를 겪는 일 인터넷에서 자율 시스템 중 라우팅 및 도달 가능성 정보를 교환하기 위해 설계된, 표준화된 외부 게이트웨이 프로토콜의 하나 > [왜 인터넷은 근본부터 글러먹었는가: 코로나19와 한국 인터넷의 해외접속 장애, 그리고 넷플릭스 전쟁에 관한 이야기](https://blog.unifiedh.com/%EC%99%9C-%EC%9D%B8%ED%84%B0%EB%84%B7%EC%9D%80-%EA%B7%BC%EB%B3%B8%EB%B6%80%ED%84%B0-%EA%B8%80%EB%9F%AC%EB%A8%B9%EC%97%88%EB%8A%94%EA%B0%80-%EC%BD%94%EB%A1%9C%EB%82%9819%EC%99%80-%ED%95%9C%EA%B5%AD-%EC%9D%B8%ED%84%B0%EB%84%B7%EC%9D%98-%ED%95%B4%EC%99%B8%EC%A0%91%EC%86%8D-%EC%9E%A5%EC%95%A0-%EA%B7%B8%EB%A6%AC%EA%B3%A0-%EB%84%B7%ED%94%8C%EB%A6%AD%EC%8A%A4-%EC%A0%84%EC%9F%81%EC%97%90-%EA%B4%80%ED%95%9C-%EC%9D%B4%EC%95%BC%EA%B8%B0-ae27826e7fc8) > [Untitled](https://www.cloudflare.com/ko-kr/learning/security/glossary/what-is-bgp/) > [Untitled](https://blog.cloudflare.com/october-2021-facebook-outage/)	b507706ab6934511a1633fd6047294ee
eBGP	EGPs	Oct 5, 2021	Alan Jo	Alan Jo	Oct 5, 2021			2104171759044cbc9ce7b026f613ab17
eBGP	BGP	null	null	null	null	null	### external BGP international shipping	7fc0c974f06d4eadbd0217e3851665e5
iBGP	BGP	null	null	null	null	null	### internal BGP Autonomous systems can also use an internal version of BGP to route through their internal networks, which is known as internal BGP	b341aee18c3648a2bbf67d63edbafc47
IGRP	IGPs	Oct 5, 2021	Alan Jo	Alan Jo	Oct 5, 2021		미국 시스코 시스템스사가 개발한 자율 시스템(AS) 내의 경로 지정 통신 규약 Autonomous System 내에서 사용하기 위해 설계된 내부 라우팅 프로토콜 - 안정적인 네트워크에 적합 - 중, 소규모 network에 적합	2bcbf41d84134ec9866a1753f7b827c6
IS-IS	IGPs	Oct 5, 2021	Alan Jo	Alan Jo	Oct 5, 2021		## Intermediate System-to-Intermediate System	fe3730f98bb84f9cb2d01a4635b83c05
OSPF	IGPs	Oct 5, 2021	Alan Jo	Alan Jo	Oct 5, 2021		## Open Shortest Path First 대부분 인터넷 공급자들과 대형조직에 사용 Link State Routing Protocol 모든 OSPF 라우터는 유일한 라우터 아이디를 가져야 하며 이는 수동이나 자동으로 할당, 인터페이스가 가장 높은 IP주소를 사용	2134804df16a4d399ca00dfba63cfdb0
Routing Information Protocol	IGPs	Oct 5, 2021	Alan Jo	Alan Jo	Oct 5, 2021		## RIP Protocol Bellman과 Ford에 의해 개발된 거리 벡터 알고리즘을 사용하는 동적 라우팅 프로토콜 대표적인 거리 벡터(Distance Vector) 방식의 라우팅 프로토콜	efcdf062ffc047e786d68c5e7041b9b1
Distance Vector Table	Routing Tables	Oct 5, 2021	Alan Jo	Alan Jo	Oct 5, 2021		나침반	9470e6ee36dc49a0bd3ac98f75ce13db
Link State Table	Routing Tables	Oct 5, 2021	Alan Jo	Alan Jo	Oct 5, 2021		네비게이션	1578e26e0afb4546a8170907113315f4
circuit switching	Network Terms	Jan 26, 2020	null	null	null			bb91d8c75a4e49a88da40cfae50d00c1
CRC	Network Terms	Jul 19, 2020	null	null	null		### cyclic redundancy check CRC는 네트워크 등을 통하여 데이터를 전송할 때 전송된 데이터에 오류가 있는지를 확인하기 위한 체크값을 결정하는 방식 > [순환 중복 검사 (CRC, Cyclic Redundancy Check) > 도리의 디지털라이프](http://blog.skby.net/%EC%88%9C%ED%99%98-%EC%A4%91%EB%B3%B5-%EA%B2%80%EC%82%AC-crc-cyclic-redundancy-check/) > [순환 중복 검사](https://ko.wikipedia.org/wiki/%EC%88%9C%ED%99%98_%EC%A4%91%EB%B3%B5_%EA%B2%80%EC%82%AC)	b813d9da08324f45bd02947a6410f125
Endpoint	Network Terms	May 3, 2020	null	null	null		- IT적 관점에서 쉽게 말해서, 어떠한 소프트웨어나 제품에 최종목적지인 사용자를 가리킴 > - ex) PC, 노트북, 핸드폰 등 유저가 사용하는 devices > - ex) 기업 네트워크에서는 사용자들이 접속하는 파일 서버나 웹 서버등의 서버 시스템 or api url 엔드포인트 보안이 중요함	cc5ba0a30564424f80ffa00da78c4f0c
Modern Network	Network Terms	Nov 28, 2020	null	null	null		원활한 애플리케이션 연결과 사용자 경험, 보안성까지 갖고 있는 경계없는 네트워크 이를 충족하려면 네트워크를 구성하는 로드밸런스와 보안까지도 모두 소프트웨어(SW)로 구현 때문에 아마존웹서비스(AWS), 구글, 마이크로소프트와 같은 클라우드서비스제공업체들을 주축으로 많은 기업들의 데이터센터에는 점점 하드웨어 기반 네트워크 스위치와 방화벽 등 보안 장비들이 있었던 자리를 서버가 대체 모든 구현을 SW로 하고 있지만 한 지점에서 다른 지점으로 비트를 빠르게 이동하려면 여전히 물리 네트워크가 필요 [Smart NIC](https://texonom.com/smart-nic-1d7e7001fa684c15b5c1e7666d984e6e) [Smart NIC](https://texonom.com/smart-nic-1d7e7001fa684c15b5c1e7666d984e6e) [SASE](https://texonom.com/sase-c1189f262182419dbf401f5b6daaff4c) 네트워크와 보안은 서버단 위에 하이퍼바이저나 베어메탈 환경에 가상화된 방식으로 분산 지원 다만 연결성은 필요하기 때문에 톱오브랙(ToR) 스위치 등 물리적인 요소가 아예 필요없어지는 것은 아니다 > [VM웨어가 말하는 3가지 '모던 네트워크' 아키텍처, 하나는 '스마트NIC' - Byline Network](https://byline.network/2020/12/17-109/)	b616d91826524d17b915a9ab015826ec
Network Link	Network Terms	Mar 28, 2021	null	null	null		physical and logical network component used to interconnect nodes in the network All the nodes of a single network link use the same link-layer protocol	4357ce36769043518a9b7ca916862f77
SASE	Modern Network	null	null	null	null	null	## Secure Access Service Edge 보안 웹 게이트웨이, 클라우드 액세스 보안 브로커, 방화벽, 제로 트러스트 네트워크 액세스 등의 클라우드 네이티브 보안 기능과 VPN 및 SD-WAN 기능이 통합되어 있는 네트워크 아키텍처	c1189f262182419dbf401f5b6daaff4c
Smart NIC	Modern Network	null	null	null	null	null	cpu에 네트워크 컴퓨킹 리소슬를 스마트닉으로 이전 윈도우나 리눅스 서버에 설치된 드라이버에 스마트NIC을 꽂아 NSX의 강점인 분산 보안모델을 적용 스마트NIC에서 NSX가 지원하는 L2와 L3 분산 방화벽, 와이어스피드로 L4 분산 방화벽, 침입탐지시스템(IDS)·침입방지시스템(IPS), 나아가 SSL 가속을 통한 실시간 암호화까지 추가 - ESXi는 물론 전체 NSX의 네트워크와 보안 기능을 실행 - vCenter를 통해 관리 - 분산 방화벽 코드를 하이퍼바이저, 베어메탈처럼 스마트닉에도 올리는 기능 [Project Monterey](https://texonom.com/project-monterey-a7433f74098144f1b91b5faa114ad52c) 로 선보일 스마트NIC [Project Monterey](https://texonom.com/project-monterey-a7433f74098144f1b91b5faa114ad52c) > [Beyond the Cloud \| 카카오 i 클라우드 스마트닉(SmartNIC) 개발기](https://youtu.be/Y58ZfgUCUo8) > [VM웨어가 말하는 3가지 '모던 네트워크' 아키텍처, 하나는 '스마트NIC' - Byline Network](https://byline.network/2020/12/17-109/)	1d7e7001fa684c15b5c1e7666d984e6e
Project Monterey	Smart NIC	null	null	null	null	null	### smart nic implementation > [Announcing Project Monterey - Redefining Hybrid Cloud Architecture](https://blogs.vmware.com/vsphere/2020/09/announcing-project-monterey-redefining-hybrid-cloud-architecture.html)	a7433f74098144f1b91b5faa114ad52c
Bus Topology	Network Topologies	Mar 28, 2020	null	null	null	null	> 장점 - 노드의 추가 및 삭제가 용이하고, 특정 노드의 장애가 다른 노드에 영향을 주지 않습니다. > 단점 - 공통배선의 대역폭을 공유하기 때문에 노드 수가 증가하면 배선의 트래픽이 증가하여 네트워크 성능이 저하됩니다. > > ![](https://www.notion.so/image/https%3A%2F%2Fs3-us-west-2.amazonaws.com%2Fsecure.notion-static.com%2F6bc9f0bb-e21f-4289-aa2a-5fb31c50e1cb%2FUntitled.png?table=block&id=da9a4ad7-92bc-4af2-9f2d-1f6f6f43e0ef&cache=v2)	bbc49275be94494eb788a17bcb895a95
Mash Topology	Network Topologies	Mar 28, 2020	null	null	null	null	> ![](https://www.notion.so/image/https%3A%2F%2Fs3-us-west-2.amazonaws.com%2Fsecure.notion-static.com%2F25ca363f-fa26-48b9-bde8-bd9334b7221b%2FUntitled.png?table=block&id=62348c94-bdb3-49bf-9d7a-6184484db7a1&cache=v2) > 완전연결형 > ![](https://www.notion.so/image/https%3A%2F%2Fs3-us-west-2.amazonaws.com%2Fsecure.notion-static.com%2F81cb4882-bc0b-46e5-b3d3-009009b13976%2FUntitled.png?table=block&id=7d31c9cb-f3ae-47d2-9289-1903d026d9ef&cache=v2) > 부분연결형 장점 - 특정 노드의 장애가 다른 노드에 영향을 주지 않고, 회선장애에 유연한 대처가 가능합니다. 단점 - 회선구축비용이 많이 들며, 새로운 노드 추가 시 비용부담이 발생합니다.	71165aab8c4845118662379c0bb38efe
Ring Topology	Network Topologies	Mar 28, 2020	null	null	null	null	> ![](https://www.notion.so/image/https%3A%2F%2Fs3-us-west-2.amazonaws.com%2Fsecure.notion-static.com%2F248db915-5ed8-42a9-8d4f-bd6f38deb7bf%2FUntitled.png?table=block&id=f6d328f7-869d-49d2-9287-511ac5076912&cache=v2) > > 장점 - 단 방향 통신으로 신호 증폭이 가능하여 거리 제약이 적습니다. > 단점 - 노드의 추가 삭제가 용이하지 않습니다.	d111e1403e8f487ebced0d66d714212a
Star Topology	Network Topologies	Mar 28, 2020	null	null	null	null	장점 - 장애 발견이 쉽고, 관리가 용이합니다. 단점 - 주 노드에 장애가 발생하면 전체 네트워크 사용이 불가능합니다. ![](https://www.notion.so/image/https%3A%2F%2Fs3-us-west-2.amazonaws.com%2Fsecure.notion-static.com%2Fbea7c98d-399a-4089-895c-e76bcc7efe00%2FUntitled.png?table=block&id=5d667f78-2152-4ded-8de2-911499d009ad&cache=v2)	e826cdadf92f4f54b4d5eacb5aefc123
Traffic policing	Network Traffic Notion	Sep 17, 2023	Alan Jo	Alan Jo	Sep 17, 2023		트래픽 감시 > [Traffic policing (communications)](https://en.wikipedia.org/wiki/Traffic_policing_(communications))	3c2d4c60b3b04fbc994122afcb6b9f79
Sniffnet	Network Traffic Tools	May 23, 2023	Alan Jo	Alan Jo	May 23, 2023	[sniffnet](https://github.com/GyulyVGC/sniffnet)		e3719706153249b4a6402dbf7cc5568d

Wifi Alliance

Wifi Notion

Apr 24, 2023

Alan Jo

Apr 24, 2023

7aa9d5d2a1fe4f0c82a76445897d109e

Wifi Development

Wifi Notion

Apr 24, 2023

Alan Jo

Apr 24, 2023

90eba064bdd047f3987ae37c8b71c620

Wifi Direct

Wifi Notion

Apr 24, 2023

Alan Jo

Jun 20, 2023

[P2P](https://texonom.com/p2p-404e19bb6c8e43c68540792b5fa4a9d0) [Bluetooth](https://texonom.com/bluetooth-19e87e4710b3439096fd21eedd367669)

## Simple AP 네트워크 없이 미디어를 스트리밍가능 IEEE 802.11 표준에서 정의한 기존 Wi-Fi Ad-hoc 네트워킹의 기능이 더 풍부하고 안전하며 스마트한 버전입니다 Bluetooth의 더 긴 범위와 더 빠른 속도 형태라고도 생각가능 ### Wifi Direct Standards |Title| |:-:| |[DLNA](https://texonom.com/dlna-cd2ef3daabb242ada41cb5d24e344f5a)| |[Miracast](https://texonom.com/miracast-785cc55b03b041de9254b9b396197d34)| > [Miracast x DLNA - Diferenças](https://www.youtube.com/watch?v=rxOINjfUtKw) > [DLNA와 '와이파이 다이렉트'의 차이점은 무엇입니까? 📺](https://www.kr-tech.gelsonluz.com/2022/05/dlna-what-is-differ_30.html)

1862325f0909447ea1810e7689d78153

Wifi Protocol

Wifi Notion

Jul 15, 2022

Alan Jo

Jul 15, 2022

### Wifi Protocols |Title| |:-:| |[WEP](https://texonom.com/wep-6b50d3c6a81e4d138d412c2d34d7705b)| |[WPA](https://texonom.com/wpa-0ae76b317be74d0b8feb0a55935a3d1e)| |[WPA2](https://texonom.com/wpa2-267b10373adf4d6fbf54b8c49385f205)| |[Wpa2-AES](https://texonom.com/wpa2-aes-46254b58f49e4a8dbd8adc2fe881c417)| |[WPA3](https://texonom.com/wpa3-2a242a538b6c4e5bae4360daa9f76fd9)| ![](https://www.notion.so/image/https%3A%2F%2Fs3-us-west-2.amazonaws.com%2Fsecure.notion-static.com%2Ff10ab80d-fc8c-4dfd-b44c-0d17981a2069%2FUntitled.png?table=block&id=db888f06-9ca0-4f8e-9d55-6d17f7e402d6&cache=v2)

00a0308b3ebc4df4b4dee0e4700419ad

Wifi Version

Wifi Notion

Jul 15, 2022

Alan Jo

Nov 7, 2022

### Wifi Versions |Title| |:-:| |[Wi-Fi 6E](https://texonom.com/wi-fi-6e-9554d4d9ba6c45439b7cd187598f9ce8)| |[Wifi 5](https://texonom.com/wifi-5-b8005adacc0c4e839aae0025307acee2)| |[Wifi 4](https://texonom.com/wifi-4-8f17abdf4e634855a8ce3bb72ae1ddf6)| |[Wifi 6](https://texonom.com/wifi-6-d4f7c726734143a59577e1e01b534dc3)|

bc44859a51ab4974a23ea4ea261626c7

AES

WIFI Algorithms

Mar 8, 2020

Alan Jo

Jul 15, 2022

RC4버린 젤 강한넘

7aa513e54c1448d49ddd1b9e5dd2fa3a

PSK

WIFI Algorithms

Mar 8, 2020

Alan Jo

Jul 15, 2022

### Pre shared Key in wep rc4 기반 4WAY HANDSHAKE psk 랑 5 parameter로 1대1대칭키 계산 - network ssid - anounce - snouce - amac address - smac address nounce는 난수임

76c43a6f32b74ae2ba8ac63ddc0dee24

RC4

WIFI Algorithms

Mar 8, 2020

Alan Jo

Jul 15, 2022

3929ee6b2cfe496a86860e6f3826bca7

TKIP

WIFI Algorithms

Mar 8, 2020

Alan Jo

Jul 15, 2022

rc4 보완인데 key mixing 을 해서 iv + temporary key 속도도 AES보다 느리고 보안도 약함 취약하지만 까다로움

8e980faf36ed423caa140c41398b6902

Connman

Wifi Development Notion

Apr 24, 2023

Alan Jo

Apr 24, 2023

3aded175b76b441dbc991ad0c06d55cd

WPA Supplicant

Wifi Development Notion

Apr 24, 2023

Alan Jo

Apr 24, 2023

e2cf818f24554778a16403943e9db2f7

**DLNA**

Wifi Direct Standards

Jun 20, 2023

Alan Jo

Jun 20, 2023

## Standard 홈 네트워크가 중앙 서버 역할

cd2ef3daabb242ada41cb5d24e344f5a

Miracast

Wifi Direct Standards

Apr 24, 2023

Alan Jo

Jun 20, 2023

두 장치 간의 직접 연결

785cc55b03b041de9254b9b396197d34

WEP

Wifi Protocols

Mar 8, 2020

Alan Jo

Jul 15, 2022

### 1999 Standark - risky 요새 거의 안씀 ### 키에 iv를 추가해서 평문과 xor연산을 통해 암호화 RC4 이용 [RC4](https://texonom.com/rc4-aaf4944088754b2cbb9ee20701c1d933) $$(initialization vector) 24bit + (key) 40 bit = (keystream) 64bit$$ 또는 keystream 128비트 3가지 종류 (24 + 104) 256 (24 + 232) iv가 공격대랑이라서 3개 별차이 없이 위험 iv를 사용하는 이유 - 동일한 평문 동일한 키로 암호화하면 동일한 결과 다른 iv면 다른 결과 키 같아도 ![](https://www.notion.so/image/https%3A%2F%2Fs3-us-west-2.amazonaws.com%2Fsecure.notion-static.com%2F1758d413-5168-4536-925a-d8624b3975a9%2FUntitled.png?table=block&id=7f0f9f23-8344-4c7d-a493-83e2119f855d&cache=v2) ![](https://www.notion.so/image/https%3A%2F%2Fs3-us-west-2.amazonaws.com%2Fsecure.notion-static.com%2Fabd66afa-b5bc-47a1-a0f5-954aeacf0e38%2FUntitled.png?table=block&id=3cbf7aa3-1c17-4f0f-b39a-81543c1ee064&cache=v2) 3바이트 iv중 첫바이트가 키스트림 몇번째 바이트 해당 iv인지 나와있는데 그게 weakness iv 라고 한다 wiv는 바뀌는데 key그대로라서 여러wiv로 key유추가능

6b50d3c6a81e4d138d412c2d34d7705b

WPA

Wifi Protocols

Mar 8, 2020

Alan Jo

Jul 15, 2022

### wep 보완 위해서 wpa는 key도 일정 속도나 트래픽 이후 바뀜 key 256비트라 또 엄청길다 message integrity check 도 한다 4 way handshake ![](https://www.notion.so/image/https%3A%2F%2Fs3-us-west-2.amazonaws.com%2Fsecure.notion-static.com%2Ff03f2efa-4847-4d64-8cf3-232cf3a8db30%2FUntitled.png?table=block&id=7377a209-97e9-4f66-859f-26bee1d9eb39&cache=v2) 공유키 인증방식 사용해서 handshake당시 패킷 가로채면 문제발생 해커는 dos공격으로 연결끊고 클라이언트가 요청 보낼때 handshake 가로챔 키값안에 brute force attack(무식 때려박)이나 dictionary attack (자주쓰는애들 모임)함 rc4이긴 한데 상관없고 공유키방식이 문제

0ae76b317be74d0b8feb0a55935a3d1e

WPA2

Wifi Protocols

Mar 8, 2020

Alan Jo

Jul 15, 2022

aew 이긴 한데 공유키방식 그대로라 해킹가능

267b10373adf4d6fbf54b8c49385f205

Wpa2-AES

Wifi Protocols

Mar 8, 2020

Alan Jo

Jul 15, 2022

이상 방식으로 추천 wes3 이상 추천

46254b58f49e4a8dbd8adc2fe881c417

WPA3

Wifi Protocols

Mar 8, 2020

Alan Jo

Jul 15, 2022

취약점 있긴 함 dragon blood cve-2019-9494

2a242a538b6c4e5bae4360daa9f76fd9

RC4

WEP

null

평문 전체 한번에 암호화가 아니라 1비트나 바이트 워드 단위로 하나씩 연속적 암호화 방식

aaf4944088754b2cbb9ee20701c1d933

Wi-Fi 6E

Wifi Versions

Nov 24, 2021

Alan Jo

Apr 24, 2023

802.11ax but 6Ghz > [티피링크 Wi-Fi 6E 공유기, CES2022 혁신상 수상](http://www.cctvnews.co.kr/news/articleView.html?idxno=231768)

9554d4d9ba6c45439b7cd187598f9ce8

Wifi 4

Wifi Versions

Apr 24, 2023

Alan Jo

Apr 24, 2023

## 802.11n

8f17abdf4e634855a8ce3bb72ae1ddf6

Wifi 5

Wifi Versions

Apr 24, 2023

Alan Jo

Apr 24, 2023

### 802.11ac

b8005adacc0c4e839aae0025307acee2

Wifi 6

Wifi Versions

Apr 24, 2023

Alan Jo

Apr 24, 2023

## 802.11ax

d4f7c726734143a59577e1e01b534dc3

Access Point

Wifi Usages

Mar 1, 2020

Alan Jo

Jul 15, 2022

[Router](https://texonom.com/router-d2dcafa7c3f14adca0ae897779e1c27c)

## Hot Spot access point 라우터 = ap = access point = 공유기 - DHCP 해주는 녀석 (모뎀포함) 의 이름 SSID > [[AP, 엑세스 포인트, 핫 스팟, 와이파이, 테더링, 페어링] 의 용어 설명](https://m.blog.naver.com/kumdongil/221174663337) > [공유기와 AP의 차이점은?](https://m.blog.naver.com/PostView.nhn?blogId=futuremain&logNo=221618229181&categoryNo=15&proxyReferer=https%3A%2F%2Fwww.google.com%2F)

1cc0242c057a401593218d2e91f1e885

wifi extender

Wifi Usages

May 19, 2020

Alan Jo

Jul 15, 2022

599de8e7312d49cd8fcdc8742e04bb21

Wifi NFC

Wifi Usages

Jul 15, 2022

Alan Jo

Jul 25, 2022

[NFC](https://texonom.com/nfc-fd5618cf689a4bc08cdb222870abcb70)

nfc 로 wifi 연결

43a307d4f05946f88f00e79237cb4913

Wifi QRCode

Wifi Usages

Jul 15, 2022

Alan Jo

Nov 7, 2022

[wifi-card](https://github.com/bndw/wifi-card) > [bndw/wifi-card](https://github.com/bndw/wifi-card?utm_source=tldrnewsletter)

bbc34e2e10024c90b24d187424719fba

Wifi Security

Wifi Usages

Jul 15, 2022

Alan Jo

Nov 7, 2022

[Wifi Protocol](https://texonom.com/wifi-protocol-00a0308b3ebc4df4b4dee0e4700419ad)

> [해커로부터 안전한 와이파이 만들기 [WiFi취약점/무선랜보안]](https://www.youtube.com/watch?v=ReOyLq-Bn2U&t=111s) > [8 Life Hacks to Improve Your Everyday Financial Habits](https://gizmodo.com/8-life-hacks-to-improve-your-everyday-financial-habits-1849740710)

5e7166c2d33341e58044d0493b69de1c

BCI

Communication Engineering Notion

Aug 12, 2020

Alan Jo

Jul 28, 2023

[Robotics](https://texonom.com/robotics-1c93b96b04a8423688234837d30ff35e) [Wireheading](https://texonom.com/wireheading-1eb526ecdf344731bebc47751739e2f4)

### Brain Machine Interface / Brain Computer Interface (BCI / BMI) 언젠가 인류는 하나의 정신 집합체가 될 것 지금도 육체적으로 개별적인 원격 세포 정신 집합체로 가상화시킬 수도 있다 1. 가역적인 p2p 링크 생성 및 삭제가 하드웨어의 핵심 2. 서로에 대한 정보 엑세스 레벨 컨트롤이 소프트웨어의 핵심 3. 비가역적인 인격체 합일을 하는 방향성까지 진행될 지는 의문 > 인간 발전 과정에서 학습없는 지식 습득은 의식하지 않아도 필연적으로 이루어질 것이다 ### BCI Notion |Title| |:-:| |[Brain Sync](https://texonom.com/brain-sync-5888823194bc451a84cd1e495af680e4)| |[BCI Industry](https://texonom.com/bci-industry-fbfea5ccf7ed41e68a86e00de6a8ca44)| |[BCI History](https://texonom.com/bci-history-4d2464e758a349fd890abb4b709c5f34)| > [This ultra-small probe promises to record neuron activity without invasive surgery](https://interestingengineering.com/innovation/mev-probe-records-neuron-activity) ### Wirelessly could be dangerous? > [Scientists connect human brain to computer wirelessly for first time ever](https://www.independent.co.uk/life-style/gadgets-and-tech/brain-computer-interface-braingate-b1825971.html?utm_source=tldrnewsletter)

e7b6d2a55d19435b9d3f8990441cab9e

**Communication channel**

ICT Usages

Sep 17, 2023

Alan Jo

Sep 17, 2023

### **Communication channels** |Title| |:-:| |[Transmission medium](https://texonom.com/transmission-medium-b1d1c770846e4ade94a9a9ec28e5b97e)| > [Communication channel](https://en.wikipedia.org/wiki/Communication_channel)

8dfafadf7e2e4649b6f622765a28b5a1

Communication Device

Communication Engineering Notion

Jan 2, 2022

Alan Jo

Jan 2, 2022

25eee8b5122f47af812612e03b882038

Computer Network

Communication Engineering Notion

Nov 5, 2019

Alan Jo

Seong-lae Cho

Apr 7, 2023

[Information Theory](https://texonom.com/information-theory-94b3195406d94eae82b530c49b55f81a) [Streaming](https://texonom.com/streaming-fb4a7c94d01a4a0abfd6bdb910422fd4) [Network Theory](https://texonom.com/network-theory-dca2782efdaa44bb82e875db9fc73ea6)

### Network Notion |Title| |:-:| |[Network Type](https://texonom.com/network-type-c6be51f020bd443aa7fc009b7b951d1d)| |[Network Flow](https://texonom.com/network-flow-ab92ae4686cc41ebaa619aa6415cb3e4)| |[Network Topology](https://texonom.com/network-topology-e40ba3565a5f4c29a7664c164fbff948)| |[Network Term](https://texonom.com/network-term-b3ba2d3ab17c46f5949fd763d18abc27)| |[Network Traffic](https://texonom.com/network-traffic-046803797abd42938cc59025cd8c75e6)| > [Computer Networking Fundamentals](https://iximiuz.com/en/series/computer-networking-fundamentals/)

1a1e567a499d4c94bfae0b92a25d44f3

Lifi

Communication Engineering Notion

Mar 3, 2023

Alan Jo

Jul 18, 2023

[LASER](https://texonom.com/laser-f7fe0f0cf2fa49628a97af536c820a6e) [Wifi](https://texonom.com/wifi-34690fdeeac24f9dbf0350480179cbc6)

### Light Fidelity ### Lifi Companies |Title| |:-:| |[Aalyria](https://texonom.com/aalyria-30f9b99b59b14b908783f26db39602c3)| |[Transcelestial](https://texonom.com/transcelestial-45702dfeb4ae44a78e9881c160285686)| |[Lifi Router](https://texonom.com/lifi-router-e91a77307a45480dba17825a0d7cea9c)| ### IEEE 802.11bb > [100x Faster Than Wi-Fi: Li-Fi, Light-Based Networking Standard Released](https://www.tomshardware.com/news/li-fi-standard-released) ### Fast Speed > [LED 빛으로 데이터를 전송하는 라이파이(Li-fi)란?](https://www.samsungsemiconstory.com/2173) > [빛에서 데이터가 비처럼 내려오다! 라이파이(Li-Fi) 기술의 모든 것 | 삼성디스플레이 뉴스룸](https://news.samsungdisplay.com/21247) > [라이파이](https://ko.wikipedia.org/wiki/%EB%9D%BC%EC%9D%B4%ED%8C%8C%EC%9D%B4) > [Infrared may no longer be a punchline, as IEEE approves 9.6Gbps wireless light](https://www.theverge.com/23795599/li-fi-wi-fi-802-11-bb-internet-of-light)

b97b88bc77414bb4a27ced28423f960f

BCI History

BCI Notion

May 30, 2023

Alan Jo

May 30, 2023

### 1959 > [NCBI - WWW Error Blocked Diagnostic](https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1363130/) ### 1962 > [NCBI - WWW Error Blocked Diagnostic](https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1359523/)

4d2464e758a349fd890abb4b709c5f34

BCI Industry

BCI Notion

May 30, 2023

Alan Jo

May 30, 2023

### BCI Companies |Title| |:-:| |[Neural Link](https://texonom.com/neural-link-94da81aa657249198eb68c69ee93cd53)| |[Synchron](https://texonom.com/synchron-1ca29a99bf6a483999002e614628d56e)| ### Human Brain > [A $50,000 Helmet That Can Read Human Mind Is Now Selling in US](https://gadgets.ndtv.com/wearables/news/kernel-helmet-price-usd-50000-read-human-mind-analyse-brain-ceo-bryan-johnson-2466256?utm_source=tldrnewsletter)

fbfea5ccf7ed41e68a86e00de6a8ca44

Brain Sync

BCI Notion

May 30, 2023

Alan Jo

May 30, 2023

### Monkey > [China syncs monkey brain with a computer in a 'world first' experiment](https://interestingengineering.com/science/china-syncs-monkey-brain-with-a-computer) ### Fly Brain > [Scientists hack fly brains to make them remote controlled](https://newatlas.com/science/fly-brains-hack-remote-controlled/) ### Robot Arm > [Brain-machine interface helped a man with paralysis feed himself using robotic arms | Engadget](https://www.engadget.com/robotic-arms-paralyzed-man-feeds-himself-040057103.html) ### Rat > [Scientist Who Trained Rats to Play "Doom II" Says He May Start Twitch Channel](https://futurism.com/viktor-toth-doom-rat)

5888823194bc451a84cd1e495af680e4

Telepathy

Communication Notion

Aug 25, 2022

Alan Jo

Aug 25, 2022

eed062c5b6fc4fc183368b1c081b311b

Neural Link

BCI Companies

Aug 31, 2020

Alan Jo

Feb 21, 2023

[Link 0.9](https://texonom.com/link-09-111efc48314145d196f105a2a39b4edf) [Neuralink V2](https://texonom.com/neuralink-v2-586b3384836a43fab1de3d861c97e69f) > [High-bandwidth wireless BCI demonstrated in humans for first time](https://arstechnica.com/science/2021/04/new-high-bandwidth-wireless-bci-helps-tetraplegics-use-tablet-computers/?utm_source=tldrnewsletter) > [Full Page Reload](https://spectrum.ieee.org/tech-talk/biomedical/bionics/exclusive-neuralinks-goal-of-bestinworld-bmi?utm_source=tldrnewsletter)

94da81aa657249198eb68c69ee93cd53

Synchron

BCI Companies

Aug 31, 2020

Alan Jo

Feb 21, 2023

> [Synchron](https://synchron.com/) > [FDA clears Synchron's brain-computer interface device for human trials | Engadget](https://www.engadget.com/fda-brain-computer-interface-clinical-trial-synchron-stentrode-190232289.html?utm_source=tldrnewsletter) > [The Age of Brain-Computer Interfaces Is on the Horizon](https://www.wired.com/story/synchron-brain-computer-interface/) > [Brain implant startup backed by Bezos and Gates is testing mind-controlled computing on humans](https://www.cnbc.com/2023/02/18/synchron-backed-by-bezos-and-gates-tests-brain-computer-interface.html)

1ca29a99bf6a483999002e614628d56e

Link 0.9

Neural Link

null

111efc48314145d196f105a2a39b4edf

Neuralink V2

Neural Link

null

586b3384836a43fab1de3d861c97e69f

**Transmission medium**

Communication channels

Sep 9, 2023

Alan Jo

Sep 17, 2023

### **Transmission mediums** |Title| |:-:| |[Guided medium](https://texonom.com/guided-medium-a1a0e4d8cbe44c768c0fec6733dbb091)| |[Unguided medium](https://texonom.com/unguided-medium-e9159be87b234474a4d295e272bf13d8)| > [Transmission medium](https://en.wikipedia.org/wiki/Transmission_medium)

b1d1c770846e4ade94a9a9ec28e5b97e

Guided medium

Transmission mediums

Sep 9, 2023

Alan Jo

Sep 9, 2023

유선

a1a0e4d8cbe44c768c0fec6733dbb091

Unguided medium

Transmission mediums

Sep 9, 2023

Alan Jo

Sep 9, 2023

무선

e9159be87b234474a4d295e272bf13d8

Quartz Oscillator

Communication Devices

Jan 2, 2022

Alan Jo

Jan 2, 2022

결정 진동자 수정진동자 Quartz Crystal이 석영

d4da21f9e169470c8fc09fda6e6ecc8f

Network Flow

Network Notion

Feb 3, 2020

Alan Jo

Jan 15, 2023

네트워크 플로우란 기존 그래프에서 아크에 용량capacity 제한이 있는 경우입니다 포드 풀커슨의 알고리즘 포드 풀커슨에서는 잔여 네트워크(residual network)라는 것을 사용 ### Network Algorithms |Title| |:-:| |[Max Flow Algorithm](https://texonom.com/max-flow-algorithm-2e375172a1074928ab855a95aea036dd)| |[ 대기행렬 이론](https://texonom.com/662d91ba8d45455580cd16dde5d28a9d)| ### Network Flow Notion |Title| |:-:| |[Routing](https://texonom.com/routing-c445d7e73cef4b4391499a42127ab20a)| |[Congestion Control](https://texonom.com/congestion-control-1b5b6761042c4199ac20fd1d3c4395c2)| |[Network Error Control](https://texonom.com/network-error-control-9988512897234fe69f50e4f2ae7d8f24)| > [(Algorithm) 네트워크 플로우(network flow)](https://www.zerocho.com/category/Algorithm/post/5893405b588acb00186d39e0)

ab92ae4686cc41ebaa619aa6415cb3e4

Network Term

Network Notion

Mar 20, 2021

Alan Jo

Oct 9, 2021

### Network Terms |Title| |:-:| |[circuit switching](https://texonom.com/circuit-switching-bb91d8c75a4e49a88da40cfae50d00c1)| |[Endpoint](https://texonom.com/endpoint-cc5ba0a30564424f80ffa00da78c4f0c)| |[CRC](https://texonom.com/crc-b813d9da08324f45bd02947a6410f125)| |[Network Link](https://texonom.com/network-link-4357ce36769043518a9b7ca916862f77)|

b3ba2d3ab17c46f5949fd763d18abc27

Network Topology

Network Notion

Feb 23, 2020

Alan Jo

Jun 28, 2021

네트워크(Network)란 연결된 형태를 말합니다 네트워크 토폴로지는 배치형태, 망구성방식을 말합니다 - Logical Structure - 데이터의 흐름 - Physical Structure - 연결 구조 ### Network Topologies |Title| |:-:| |[Bus Topology](https://texonom.com/bus-topology-bbc49275be94494eb788a17bcb895a95)| |[Mash Topology](https://texonom.com/mash-topology-71165aab8c4845118662379c0bb38efe)| |[Ring Topology](https://texonom.com/ring-topology-d111e1403e8f487ebced0d66d714212a)| |[Star Topology](https://texonom.com/star-topology-e826cdadf92f4f54b4d5eacb5aefc123)| > [네트워크 토폴로지(Network Topology) 정의 및 종류입니다.](https://m.blog.naver.com/PostView.nhn?blogId=brickbot&logNo=220418950837&proxyReferer=https%3A%2F%2Fwww.google.com%2F)

e40ba3565a5f4c29a7664c164fbff948

Network Traffic

Network Notion

Jan 23, 2022

Alan Jo

May 23, 2023

[Cloudflare Radar](https://texonom.com/cloudflare-radar-e925e6c5f3da4336a9367248373db00c)

046803797abd42938cc59025cd8c75e6

대기행렬 이론

Network Algorithms

Aug 17, 2020

Alan Jo

Jan 15, 2023

[큐잉 모델](https://texonom.com/7ab2f80743a04887a0c8775ad21c7d59) > [02. 대기행렬이론(Queueing theory)](https://m.blog.naver.com/PostView.nhn?blogId=ronation&logNo=20197336077&proxyReferer=https:%2F%2Fwww.google.com%2F)

662d91ba8d45455580cd16dde5d28a9d

Max Flow Algorithm

Network Algorithms

Mar 1, 2020

Alan Jo

Jan 15, 2023

가중치가 있는 방향그래프(directed graph) G와 시작(source) 노드 s, 도착(sink) 노드 t가 주어졌을 때 각 엣지의 용량(capacity)을 고려하여 s에서 t로 흘려보낼 수 있는 최대 유량(flow)을 구하는 알고리즘을 가리킴 ### MFA Terms |Title| |:-:| |[cancellation](https://texonom.com/cancellation-ba8fedc1cb8d477f88a0148acd2d1d32)| |[residual network](https://texonom.com/residual-network-2131e9ec2bc8417e8c0d34b991491009)| |[augmenting path](https://texonom.com/augmenting-path-ccba03a18a794885aa40c0456fbb8850)| |[flow](https://texonom.com/flow-ec310298261c44b9bc1f8bd2a29590ae)| |[capacity](https://texonom.com/capacity-1be259baff2946309d8ccea56ec7356c)| |[source](https://texonom.com/source-2e4af35b980b4263b01ac1dfbd518d1c)| |[sink](https://texonom.com/sink-9ac2036f6c0c44ed8f4fc98f09b6afa1)| |[residual capacity](https://texonom.com/residual-capacity-e98f6510dd4747e6bd4f0de4b22babdd)| ### Ford-Fulkerson Algorithm > ![](https://www.notion.so/image/https%3A%2F%2Fs3-us-west-2.amazonaws.com%2Fsecure.notion-static.com%2F0c4d0de4-a287-4ccf-8180-b66660291f88%2FUntitled.png?table=block&id=0aa324cb-08be-4393-ab90-f9299b697867&cache=v2) > ### edge max bandwidth is static, change direction ### 에드먼드-카프 알고리즘 > [최대 유량 알고리즘 (1)](https://ratsgo.github.io/data%20structure&algorithm/2017/11/29/maxflow/) > [네트워크 플로우(network flow) & 포드 -풀커슨 &에드먼트-카프 알고리즘 (1)](https://m.blog.naver.com/PostView.nhn?blogId=jh20s&logNo=221298145631&proxyReferer=https%3A%2F%2Fwww.google.com%2F)

2e375172a1074928ab855a95aea036dd

큐잉 모델

대기행렬 이론

null

7ab2f80743a04887a0c8775ad21c7d59

에드먼드-카프 알고리즘

Max Flow Algorithm

null

be8df5f767e043e5ba41305301a742c7

Ford-Fulkerson Algorithm

Max Flow Algorithm

null

![](https://www.notion.so/image/https%3A%2F%2Fs3-us-west-2.amazonaws.com%2Fsecure.notion-static.com%2F0c4d0de4-a287-4ccf-8180-b66660291f88%2FUntitled.png?table=block&id=0aa324cb-08be-4393-ab90-f9299b697867&cache=v2) ### edge max bandwidth is static, change direction > [Ford–Fulkerson algorithm](https://en.wikipedia.org/wiki/Ford–Fulkerson_algorithm)

1ca000c59c414de38e2370bba059ebef

augmenting path

MFA Terms

Mar 1, 2020

Alan Jo

Jan 15, 2023

ccba03a18a794885aa40c0456fbb8850

cancellation

MFA Terms

Mar 1, 2020

Alan Jo

Jan 15, 2023

ba8fedc1cb8d477f88a0148acd2d1d32

capacity

MFA Terms

Mar 1, 2020

Alan Jo

Jan 15, 2023

1be259baff2946309d8ccea56ec7356c

flow

MFA Terms

Mar 1, 2020

Alan Jo

Jan 15, 2023

ec310298261c44b9bc1f8bd2a29590ae

residual capacity

MFA Terms

Mar 1, 2020

Alan Jo

Jan 15, 2023

e98f6510dd4747e6bd4f0de4b22babdd

residual network

MFA Terms

Mar 1, 2020

Alan Jo

Jan 15, 2023

2131e9ec2bc8417e8c0d34b991491009

sink

MFA Terms

Mar 1, 2020

Alan Jo

Jan 15, 2023

9ac2036f6c0c44ed8f4fc98f09b6afa1

source

MFA Terms

Mar 1, 2020

Alan Jo

Jan 15, 2023

2e4af35b980b4263b01ac1dfbd518d1c

Network Error Control

Network Flow Notion

Jan 17, 2023

Alan Jo

Jan 17, 2023

### Network Error Control Methods |Title| |:-:| |[Go back N](https://texonom.com/go-back-n-ec4e2ab218d6424f88e80131f0abd8b6)| |[Selective Repeat](https://texonom.com/selective-repeat-13fa979d7e8347df899bd802160d7531)|

9988512897234fe69f50e4f2ae7d8f24

Routing

Network Flow Notion

Jan 10, 2021

Alan Jo

Jan 15, 2023

[Network Topology](https://texonom.com/network-topology-e40ba3565a5f4c29a7664c164fbff948)

c445d7e73cef4b4391499a42127ab20a

Go back N

Network Error Control Methods

Jan 17, 2023

Alan Jo

Jan 17, 2023

ec4e2ab218d6424f88e80131f0abd8b6

Selective Repeat

Network Error Control Methods

Jan 17, 2023

Alan Jo

Jan 17, 2023

13fa979d7e8347df899bd802160d7531

Autonomous System

Routing Notion

Oct 5, 2021

Alan Jo

Oct 6, 2021

[BGP](https://texonom.com/bgp-b507706ab6934511a1633fd6047294ee)

# AS 하나의 단일 기관 하에서도 동일한 정책으로 관리되는 네트워크와 라우터 그룹 Autonomous systems typically belong to ISPs or other large high-tech organizations [ASN](https://texonom.com/asn-87c15a6f25ac49a3887481508b3e2f19) [IANA](https://texonom.com/iana-9f3d57997f34470db49e90a6f2630be2) [RIRs](https://texonom.com/rirs-178d7b4d89d842dda3f377565a68a2ac) Each autonomous system have a registered ASN Internet Assigned Numbers Authority (IANA) assigns ASNs to Regional Internet Registries which then assigns them to ISPs and networks ASNs are 16 bit numbers between 1 and 65534 and 32 bit numbers between 131072 and 4294967294. As of 2018, there are approximately 64,000 ASNs in-use worldwide. These ASNs are only required for external BGP

d004131c80a143e1a394bea17bbf6a53

ASN

Autonomous System

null

autonomous system number

87c15a6f25ac49a3887481508b3e2f19

IANA

Autonomous System

null

## Internet Assigned Numbers Authority

9f3d57997f34470db49e90a6f2630be2

RIRs

Autonomous System

null

## Regional Internet Registries

178d7b4d89d842dda3f377565a68a2ac

Routing Protocol

Routing Usage

Oct 5, 2021

Alan Jo

Oct 6, 2021

### Routing Protocols |Title| |:-:| |[Static Routing Protocol](https://texonom.com/static-routing-protocol-70300573b924493cbe7434b331741aea)| |[Dynamic Routing Protocol](https://texonom.com/dynamic-routing-protocol-f4320515c5c54a3395b3d8c7c6ab5ff6)| > [IGP (Interior Gateway Protocol)](https://m.blog.naver.com/PostView.naver?isHttpsRedirect=true&blogId=bi1189&logNo=221535779617)

265a997369004c2ba7e6a51ea0759404

Routing Table

Routing Usage

Oct 5, 2021

Alan Jo

Oct 6, 2021

### Routing Tables |Title| |:-:| |[Distance Vector Table](https://texonom.com/distance-vector-table-9470e6ee36dc49a0bd3ac98f75ce13db)| |[Link State Table](https://texonom.com/link-state-table-1578e26e0afb4546a8170907113315f4)| > [IGP (Interior Gateway Protocol)](https://m.blog.naver.com/PostView.naver?isHttpsRedirect=true&blogId=bi1189&logNo=221535779617)

c4494fedc0c04aa49dd388ad87bf3210

Dynamic Routing Protocol

Routing Protocols

Oct 5, 2021

Alan Jo

Oct 6, 2021

자동으로 라우팅 테이블 갱신 트래픽 증가, 복잡, 관리용이 ### Dynamic Routing Protocols |Title| |:-:| |[IGP](https://texonom.com/igp-50b36db9d24a4ddf9484606e698b24a4)| |[EGP](https://texonom.com/egp-7daf5fbe068f449fbaa62d9f6cc1cbea)| ![](https://www.notion.so/image/https%3A%2F%2Fs3-us-west-2.amazonaws.com%2Fsecure.notion-static.com%2F6ad4fc7a-aa9a-44b4-ad05-c768bca2f03f%2FUntitled.png?table=block&id=38e5d060-84f2-4d3a-9cd3-afefae2cfa03&cache=v2) > [IGP (Interior Gateway Protocol)](https://m.blog.naver.com/PostView.naver?isHttpsRedirect=true&blogId=bi1189&logNo=221535779617)

f4320515c5c54a3395b3d8c7c6ab5ff6

Static Routing Protocol

Routing Protocols

Oct 5, 2021

Alan Jo

Oct 5, 2021

수동으로 라우팅 테이블을 설정하고 갱신 트래픽 감소, 단순, 관리의 어려움 ### Static Routing Protocols |Title| |:-:|

70300573b924493cbe7434b331741aea

EGP

Dynamic Routing Protocols

Oct 5, 2021

Alan Jo

Oct 5, 2021

## Exterior Gateway routing Protocol 다른 그룹과 라우팅 정보를 교환하는 프로토콜 외부 경로 설정을 위한 Protocol ### EGPs |Title| |:-:| |[eBGP](https://texonom.com/ebgp-2104171759044cbc9ce7b026f613ab17)| |[BGP](https://texonom.com/bgp-b507706ab6934511a1633fd6047294ee)|

7daf5fbe068f449fbaa62d9f6cc1cbea

IGP

Dynamic Routing Protocols

Oct 5, 2021

Alan Jo

Oct 6, 2021

## Internal Gateway routing Protocol 임의의 Autonomous System 내부에서 동작하는 라우팅 정보를 교환사 프로토콜 ### IGPs |Title| |:-:| |[IS-IS](https://texonom.com/is-is-fe3730f98bb84f9cb2d01a4635b83c05)| |[OSPF](https://texonom.com/ospf-2134804df16a4d399ca00dfba63cfdb0)| |[Routing Information Protocol](https://texonom.com/routing-information-protocol-efcdf062ffc047e786d68c5e7041b9b1)| |[IGRP](https://texonom.com/igrp-2bcbf41d84134ec9866a1753f7b827c6)| > [IGP & EGP 차이점 - 라우팅 프로토콜 개념](https://m.blog.naver.com/PostView.naver?isHttpsRedirect=true&blogId=yoodh0713&logNo=221578462264) > [IGP (Interior Gateway Protocol)](https://m.blog.naver.com/PostView.naver?isHttpsRedirect=true&blogId=bi1189&logNo=221535779617)

50b36db9d24a4ddf9484606e698b24a4

BGP

EGPs

Oct 5, 2021

Alan Jo

Feb 19, 2022

[Korea ISP](https://texonom.com/korea-isp-557fd6cedc924300b47396c0cad2abf3) [Routing](https://texonom.com/routing-c445d7e73cef4b4391499a42127ab20a)

## Border Gateway Protocol ### postal service of the Internet who can break internet mechanism to exchange routing information between autonomous systems [eBGP](https://texonom.com/ebgp-7fc0c974f06d4eadbd0217e3851665e5) [iBGP](https://texonom.com/ibgp-b341aee18c3648a2bbf67d63edbafc47) 주 경로 지정을 담당하는 TCP Based 프로토콜의 한 종류 2008년에는 유튜브의 반이슬람 동영상이 자국민을 자극할 것을 우려한 파키스탄 정부의 명령으로 접속 차단을 위해 생겨난 가짜 라우팅 경로가 BGP 구성 오류로 인해 전 세계로 퍼져나가, 자국의 국경을 넘어 전 세계의 유튜브 접속을 2시간 동안 차단 버라이즌이 잘못된 BGP 경로를 전파하는 바람에 인터넷 전체 트래픽의 상당 부분이 접속 장애를 겪는 일 인터넷에서 자율 시스템 중 라우팅 및 도달 가능성 정보를 교환하기 위해 설계된, 표준화된 외부 게이트웨이 프로토콜의 하나 > [왜 인터넷은 근본부터 글러먹었는가: 코로나19와 한국 인터넷의 해외접속 장애, 그리고 넷플릭스 전쟁에 관한 이야기](https://blog.unifiedh.com/%EC%99%9C-%EC%9D%B8%ED%84%B0%EB%84%B7%EC%9D%80-%EA%B7%BC%EB%B3%B8%EB%B6%80%ED%84%B0-%EA%B8%80%EB%9F%AC%EB%A8%B9%EC%97%88%EB%8A%94%EA%B0%80-%EC%BD%94%EB%A1%9C%EB%82%9819%EC%99%80-%ED%95%9C%EA%B5%AD-%EC%9D%B8%ED%84%B0%EB%84%B7%EC%9D%98-%ED%95%B4%EC%99%B8%EC%A0%91%EC%86%8D-%EC%9E%A5%EC%95%A0-%EA%B7%B8%EB%A6%AC%EA%B3%A0-%EB%84%B7%ED%94%8C%EB%A6%AD%EC%8A%A4-%EC%A0%84%EC%9F%81%EC%97%90-%EA%B4%80%ED%95%9C-%EC%9D%B4%EC%95%BC%EA%B8%B0-ae27826e7fc8) > [Untitled](https://www.cloudflare.com/ko-kr/learning/security/glossary/what-is-bgp/) > [Untitled](https://blog.cloudflare.com/october-2021-facebook-outage/)

b507706ab6934511a1633fd6047294ee

eBGP

EGPs

Oct 5, 2021

Alan Jo

Oct 5, 2021

2104171759044cbc9ce7b026f613ab17

eBGP

BGP

null

### external BGP international shipping

7fc0c974f06d4eadbd0217e3851665e5

iBGP

BGP

null

### internal BGP Autonomous systems can also use an internal version of BGP to route through their internal networks, which is known as internal BGP

b341aee18c3648a2bbf67d63edbafc47

IGRP

IGPs

Oct 5, 2021

Alan Jo

Oct 5, 2021

미국 시스코 시스템스사가 개발한 자율 시스템(AS) 내의 경로 지정 통신 규약 Autonomous System 내에서 사용하기 위해 설계된 내부 라우팅 프로토콜 - **안정적인 네트워크에 적합** - **중, 소규모 network에 적합**

2bcbf41d84134ec9866a1753f7b827c6

IS-IS

IGPs

Oct 5, 2021

Alan Jo

Oct 5, 2021

## Intermediate System-to-Intermediate System

fe3730f98bb84f9cb2d01a4635b83c05

OSPF

IGPs

Oct 5, 2021

Alan Jo

Oct 5, 2021

## Open Shortest Path First 대부분 인터넷 공급자들과 대형조직에 사용 Link State Routing Protocol 모든 OSPF 라우터는 유일한 라우터 아이디를 가져야 하며 이는 수동이나 자동으로 할당, 인터페이스가 가장 높은 IP주소를 사용

2134804df16a4d399ca00dfba63cfdb0

Routing Information Protocol

IGPs

Oct 5, 2021

Alan Jo

Oct 5, 2021

## RIP Protocol Bellman과 Ford에 의해 개발된 거리 벡터 알고리즘을 사용하는 동적 라우팅 프로토콜 대표적인 거리 벡터(Distance Vector) 방식의 라우팅 프로토콜

efcdf062ffc047e786d68c5e7041b9b1

Distance Vector Table

Routing Tables

Oct 5, 2021

Alan Jo

Oct 5, 2021

나침반

9470e6ee36dc49a0bd3ac98f75ce13db

Link State Table

Routing Tables

Oct 5, 2021

Alan Jo

Oct 5, 2021

네비게이션

1578e26e0afb4546a8170907113315f4

circuit switching

Network Terms

Jan 26, 2020

null

bb91d8c75a4e49a88da40cfae50d00c1

CRC

Network Terms

Jul 19, 2020

null

### cyclic redundancy check CRC는 네트워크 등을 통하여 데이터를 전송할 때 전송된 데이터에 오류가 있는지를 확인하기 위한 체크값을 결정하는 방식 > [순환 중복 검사 (CRC, Cyclic Redundancy Check) > 도리의 디지털라이프](http://blog.skby.net/%EC%88%9C%ED%99%98-%EC%A4%91%EB%B3%B5-%EA%B2%80%EC%82%AC-crc-cyclic-redundancy-check/) > [순환 중복 검사](https://ko.wikipedia.org/wiki/%EC%88%9C%ED%99%98_%EC%A4%91%EB%B3%B5_%EA%B2%80%EC%82%AC)

b813d9da08324f45bd02947a6410f125

Endpoint

Network Terms

May 3, 2020

null

- IT적 관점에서 쉽게 말해서, 어떠한 소프트웨어나 제품에 최종목적지인 사용자를 가리킴 > - ex) PC, 노트북, 핸드폰 등 유저가 사용하는 devices > - ex) 기업 네트워크에서는 사용자들이 접속하는 파일 서버나 웹 서버등의 서버 시스템 or api url 엔드포인트 보안이 중요함

cc5ba0a30564424f80ffa00da78c4f0c

Modern Network

Network Terms

Nov 28, 2020

null

원활한 애플리케이션 연결과 사용자 경험, 보안성까지 갖고 있는 경계없는 네트워크 이를 충족하려면 네트워크를 구성하는 로드밸런스와 보안까지도 모두 소프트웨어(SW)로 구현 때문에 아마존웹서비스(AWS), 구글, 마이크로소프트와 같은 클라우드서비스제공업체들을 주축으로 많은 기업들의 데이터센터에는 점점 하드웨어 기반 네트워크 스위치와 방화벽 등 보안 장비들이 있었던 자리를 서버가 대체 모든 구현을 SW로 하고 있지만 한 지점에서 다른 지점으로 비트를 빠르게 이동하려면 여전히 물리 네트워크가 필요 [Smart NIC](https://texonom.com/smart-nic-1d7e7001fa684c15b5c1e7666d984e6e) [Smart NIC](https://texonom.com/smart-nic-1d7e7001fa684c15b5c1e7666d984e6e) [SASE](https://texonom.com/sase-c1189f262182419dbf401f5b6daaff4c) 네트워크와 보안은 서버단 위에 하이퍼바이저나 베어메탈 환경에 가상화된 방식으로 분산 지원 다만 연결성은 필요하기 때문에 톱오브랙(ToR) 스위치 등 물리적인 요소가 아예 필요없어지는 것은 아니다 > [VM웨어가 말하는 3가지 '모던 네트워크' 아키텍처, 하나는 '스마트NIC' - Byline Network](https://byline.network/2020/12/17-109/)

b616d91826524d17b915a9ab015826ec

Network Link

Network Terms

Mar 28, 2021

null

physical and logical network component used to interconnect nodes in the network All the nodes of a single network link use the same link-layer protocol

4357ce36769043518a9b7ca916862f77

SASE

Modern Network

null

## Secure Access Service Edge 보안 웹 게이트웨이, 클라우드 액세스 보안 브로커, 방화벽, 제로 트러스트 네트워크 액세스 등의 클라우드 네이티브 보안 기능과 VPN 및 SD-WAN 기능이 통합되어 있는 네트워크 아키텍처

c1189f262182419dbf401f5b6daaff4c

Smart NIC

Modern Network

null

cpu에 네트워크 컴퓨킹 리소슬를 스마트닉으로 이전 윈도우나 리눅스 서버에 설치된 드라이버에 스마트NIC을 꽂아 NSX의 강점인 분산 보안모델을 적용 스마트NIC에서 NSX가 지원하는 L2와 L3 분산 방화벽, 와이어스피드로 L4 분산 방화벽, 침입탐지시스템(IDS)·침입방지시스템(IPS), 나아가 SSL 가속을 통한 실시간 암호화까지 추가 - ESXi는 물론 전체 NSX의 네트워크와 보안 기능을 실행 - vCenter를 통해 관리 - 분산 방화벽 코드를 하이퍼바이저, 베어메탈처럼 스마트닉에도 올리는 기능 [Project Monterey](https://texonom.com/project-monterey-a7433f74098144f1b91b5faa114ad52c) 로 선보일 스마트NIC [Project Monterey](https://texonom.com/project-monterey-a7433f74098144f1b91b5faa114ad52c) > [Beyond the Cloud | 카카오 i 클라우드 스마트닉(SmartNIC) 개발기](https://youtu.be/Y58ZfgUCUo8) > [VM웨어가 말하는 3가지 '모던 네트워크' 아키텍처, 하나는 '스마트NIC' - Byline Network](https://byline.network/2020/12/17-109/)

1d7e7001fa684c15b5c1e7666d984e6e

Project Monterey

Smart NIC

null

### smart nic implementation > [Announcing Project Monterey - Redefining Hybrid Cloud Architecture](https://blogs.vmware.com/vsphere/2020/09/announcing-project-monterey-redefining-hybrid-cloud-architecture.html)

a7433f74098144f1b91b5faa114ad52c

Bus Topology

Network Topologies

Mar 28, 2020

null

> 장점 - 노드의 추가 및 삭제가 용이하고, 특정 노드의 장애가 다른 노드에 영향을 주지 않습니다. > 단점 - 공통배선의 대역폭을 공유하기 때문에 노드 수가 증가하면 배선의 트래픽이 증가하여 네트워크 성능이 저하됩니다. > > ![](https://www.notion.so/image/https%3A%2F%2Fs3-us-west-2.amazonaws.com%2Fsecure.notion-static.com%2F6bc9f0bb-e21f-4289-aa2a-5fb31c50e1cb%2FUntitled.png?table=block&id=da9a4ad7-92bc-4af2-9f2d-1f6f6f43e0ef&cache=v2)

bbc49275be94494eb788a17bcb895a95

Mash Topology

Network Topologies

Mar 28, 2020

null

> ![](https://www.notion.so/image/https%3A%2F%2Fs3-us-west-2.amazonaws.com%2Fsecure.notion-static.com%2F25ca363f-fa26-48b9-bde8-bd9334b7221b%2FUntitled.png?table=block&id=62348c94-bdb3-49bf-9d7a-6184484db7a1&cache=v2) > 완전연결형 > ![](https://www.notion.so/image/https%3A%2F%2Fs3-us-west-2.amazonaws.com%2Fsecure.notion-static.com%2F81cb4882-bc0b-46e5-b3d3-009009b13976%2FUntitled.png?table=block&id=7d31c9cb-f3ae-47d2-9289-1903d026d9ef&cache=v2) > 부분연결형 장점 - 특정 노드의 장애가 다른 노드에 영향을 주지 않고, 회선장애에 유연한 대처가 가능합니다. 단점 - 회선구축비용이 많이 들며, 새로운 노드 추가 시 비용부담이 발생합니다.

71165aab8c4845118662379c0bb38efe

Ring Topology

Network Topologies

Mar 28, 2020

null

> ![](https://www.notion.so/image/https%3A%2F%2Fs3-us-west-2.amazonaws.com%2Fsecure.notion-static.com%2F248db915-5ed8-42a9-8d4f-bd6f38deb7bf%2FUntitled.png?table=block&id=f6d328f7-869d-49d2-9287-511ac5076912&cache=v2) > > 장점 - 단 방향 통신으로 신호 증폭이 가능하여 거리 제약이 적습니다. > 단점 - 노드의 추가 삭제가 용이하지 않습니다.

d111e1403e8f487ebced0d66d714212a

Star Topology

Network Topologies

Mar 28, 2020

null

장점 - 장애 발견이 쉽고, 관리가 용이합니다. 단점 - 주 노드에 장애가 발생하면 전체 네트워크 사용이 불가능합니다. ![](https://www.notion.so/image/https%3A%2F%2Fs3-us-west-2.amazonaws.com%2Fsecure.notion-static.com%2Fbea7c98d-399a-4089-895c-e76bcc7efe00%2FUntitled.png?table=block&id=5d667f78-2152-4ded-8de2-911499d009ad&cache=v2)

e826cdadf92f4f54b4d5eacb5aefc123

**Traffic policing**

Network Traffic Notion

Sep 17, 2023

Alan Jo

Sep 17, 2023

트래픽 감시 > [Traffic policing (communications)](https://en.wikipedia.org/wiki/Traffic_policing_(communications))

3c2d4c60b3b04fbc994122afcb6b9f79

Sniffnet

Network Traffic Tools

May 23, 2023

Alan Jo

May 23, 2023

[sniffnet](https://github.com/GyulyVGC/sniffnet)

e3719706153249b4a6402dbf7cc5568d