RFC за май-июль 2020го

Разобрал несколько RFC из тех немногих, что все-таки появились за последние три месяца, невзирая на коронавирус. В список вошли:

Обновления для PCEP и TE:

Updated Rules for Processing Stateful PCE Request Parameters Flags
https://www.rfc-editor.org/rfc/rfc8786.txt

Path Computation Element Communication Protocol (PCEP) Extensions for GMPLS
https://www.rfc-editor.org/rfc/rfc8779.txt

The Path Computation Element Communication Protocol (PCEP) Extension for Wavelength Switched Optical Network (WSON) Routing and Wavelength Assignment (RWA)
https://www.rfc-editor.org/rfc/rfc8780.txt

RSVP-TE Summary Fast Reroute Extensions for Label Switched Path (LSP) Tunnels
https://www.rfc-editor.org/rfc/rfc8796.txt

Обновления для DNS:

Apple’s DNS Long-Lived Queries Protocol
https://www.rfc-editor.org/rfc/rfc8764.txt

Discovery Proxy for Multicast DNS-Based Service Discovery
https://www.rfc-editor.org/rfc/rfc8766.txt

Обновления для YANG:

Common YANG Data Types for Traffic Engineering
https://www.rfc-editor.org/rfc/rfc8776.txt

YANG Data Structure Extensions
https://www.rfc-editor.org/rfc/rfc8791.txt

Все остальное:

Mixing Preshared Keys in the Internet Key Exchange Protocol Version 2 (IKEv2) for Post-quantum Security
https://www.rfc-editor.org/rfc/rfc8784.txt

Limited Domains and Internet Protocols
https://www.rfc-editor.org/rfc/rfc8799.txt

Information-Centric Networking (ICN): Content-Centric Networking (CCNx) and Named Data Networking (NDN) Terminology
https://www.rfc-editor.org/rfc/rfc8793.txt

The China Mobile, Huawei, and ZTE Broadband Network Gateway (BNG) Simple Control and User Plane Separation Protocol (S-CUSP)
https://www.rfc-editor.org/rfc/rfc8772.txt

Distributed Denial-of-Service Open Threat Signaling (DOTS) Signal Channel Specification
https://www.rfc-editor.org/rfc/rfc8782.txt

Distributed Denial-of-Service Open Threat Signaling (DOTS) Data Channel Specification
https://www.rfc-editor.org/rfc/rfc8783.txt

Ну и сам разбор

https://youtu.be/q5ZtR35VGns
Categories: ссылки | Tags: , | Leave a comment

RFC за апрель 2020

После почти двухмесячного простоя вернулся к каналу. Субботник получился короткий — из интересных новостей только парочку можно выделить, а комитеты IETF работают в четверть силы — количество РФЦ за апрель 2020го в два раза меньше, чем за апрель 2019го.

Discovering PREF64 in Router Advertisements
https://www.rfc-editor.org/rfc/rfc8781.txt

Deployment Considerations for Information-Centric Networking (ICN)
https://www.rfc-editor.org/rfc/rfc8763.txt

Host Router Support for OSPFv2
https://www.rfc-editor.org/rfc/rfc8770.txt

PIM Designated Router Load Balancing
https://www.rfc-editor.org/rfc/rfc8775.txt

DNS Reverse IP Automatic Multicast Tunneling (AMT) Discovery
https://www.rfc-editor.org/rfc/rfc8777.txt

Сам обзор

Categories: Без рубрики | Leave a comment

RFC за март 2020

Обозрел на ютубе RFC за март 2020го (те, что могут быть интересны сетевикам). Подборочка:

Constrained Application Protocol (CoAP) Hop-Limit Option
https://www.rfc-editor.org/rfc/rfc8768.txt

Simple Two-Way Active Measurement Protocol
https://www.rfc-editor.org/rfc/rfc8762.txt

The Session Initiation Protocol (SIP) Digest Access Authentication Scheme
https://www.rfc-editor.org/rfc/rfc8760.txt

Dynamic Link Exchange Protocol (DLEP) Latency Range Extension
https://www.rfc-editor.org/rfc/rfc8757.txt

IPv6 Segment Routing Header (SRH)
https://www.rfc-editor.org/rfc/rfc8754.txt

Hierarchical Stateful Path Computation Element (PCE)
https://www.rfc-editor.org/rfc/rfc8751.txt

Ability for a Stateful Path Computation Element (PCE) to Request and Obtain Control of a Label Switched Path (LSP)
https://www.rfc-editor.org/rfc/rfc8741.txt

Path Computation Element Communication Protocol (PCEP) Extensions for Associating Working and Protection Label Switched Paths (LSPs) with Stateful PCE
https://www.rfc-editor.org/rfc/rfc8745.txt

TCP Extensions for Multipath Operation with Multiple Addresses
https://www.rfc-editor.org/rfc/rfc8684.txt
Бонусом — дока от Cisco как с этим работает, например, АСА https://www.cisco.com/c/en/us/support/docs/ip/transmission-control-protocol-tcp/116519-technote-mptcp-00.html

Multi-Access Management Services (MAMS)
https://www.rfc-editor.org/rfc/rfc8743.txt

Также рекомендую очень забавный (ну, кому как) 1-апрельский RFC «The Quantum Bug»
https://www.rfc-editor.org/rfc/rfc8774.txt

Сам обзор

И пара security RFC, которых нет в обзоре, но по-моему вполне любопытные

TLS 1.3 Extension for Certificate-Based Authentication with an External Pre-Shared Key
https://www.rfc-editor.org/rfc/rfc8773.txt
Implicit Initialization Vector (IV) for Counter-Based Ciphers in Encapsulating Security Payload (ESP)
https://www.rfc-editor.org/rfc/rfc8750.txt

Categories: Без рубрики | Tags: , | Leave a comment

ENCOR 1.5.a

Рассматриваем Cisco SD-Access (архитектура, control-plane и data-plane)

Ссылки на материалы

https://www.slideshare.net/anandnande/how-vxlan-works-on-l2-and-across-l3-networks
https://tools.ietf.org/html/draft-smith-vxlan-group-policy-05
https://www.cisco.com/c/en/us/td/docs/solutions/CVD/Campus/sda-sdg-2019oct.html
https://www.cisco.com/c/dam/en/us/td/docs/solutions/CVD/Campus/sda-fabric-deploy-2019oct.pdf
https://www.evo-net.co.uk/post/sd-access-a-new-era-of-networking-part-1
https://www.cisco.com/c/dam/en/us/solutions/collateral/enterprise-networks/trustsec/trustsec-data-center-segmentation-guide.pdf
https://fastreroute.com/cisco-sd-access-components/
https://www.ciscolive.com/c/dam/r/ciscolive/emea/docs/2019/pdf/BRKCRS-2810.pdf

YouTube разбор

Categories: Без рубрики | Tags: , , | Leave a comment

ENCOR 1.4.b

Разбираем, в чем отличия традиционных WAN решений от Cisco и SD-WAN (ну и немного смотрим, что такое эти самые традиционные WAN).

Ссылки на материалы ( как всегда, субъективно, + official guide )

https://www.cisco.com/c/en/us/products/collateral/security/dynamic-multipoint-vpn-dmvpn/data_sheet_c78-468520.html
https://www.cisco.com/c/dam/en/us/td/docs/solutions/CVD/Oct2016/CVD-IWANDesign-2016OCT.pdf
https://www.ciscolive.com/c/dam/r/ciscolive/apjc/docs/2019/pdf/BRKRST-2669.pdf
https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/pfrv3/configuration/xe-3s/pfrv3-xe-3s-book/pfrv3.html
https://www.slideshare.net/NetworkCollaborators/cisco-connect-2018-indonesia-nextgen-cisco-sdwan-architecture

Ну и сам ролик:

Categories: Без рубрики | Tags: , , | Leave a comment

ENCOR 1.4.a

Разбираем из чего состоит Cisco SD-WAN (Viptela) и как эти компоненты между собой работают.

Ссылки (немножко из того, что можно найти по теме)

https://www.cisco.com/c/en/us/solutions/enterprise-networks/sd-wan/
https://www.ciscolive.com/c/dam/r/ciscolive/us/docs/2017/pdf/PSOSPG-2003.pdf
https://www.ciscolive.com/c/dam/r/ciscolive/us/docs/2019/pdf/BRKRST-2559.pdf
https://www.ciscolive.com/c/dam/r/ciscolive/emea/docs/2020/pdf/BRKCRS-2110.pdf
https://www.ciscolive.com/c/dam/r/ciscolive/apjc/docs/2019/pdf/BRKRST-2669.pdf
https://www.ciscolive.com/c/dam/r/ciscolive/emea/docs/2019/pdf/BRKCOC-1236.pdf

Ну и сам ролик:
https://youtu.be/y1sxzRsMfn0

Categories: Без рубрики | Tags: , , | Leave a comment

Вернемся к субботникам?

Решил попробовать вернуться к еженедельным дайджестам (новости, связанные с сетями и свежие сетевые RFC).
Выбранные для обзора RFC (за первые 2 месяца 2020го)

Session Traversal Utilities for NAT (STUN)
https://www.rfc-editor.org/rfc/rfc8489.txt

Traversal Using Relays around NAT (TURN): Relay Extensions to Session Traversal Utilities for NAT (STUN)
https://www.rfc-editor.org/rfc/rfc8656.txt

Forward Error Correction (FEC) Framework Extension to Sliding Window Codes
https://www.rfc-editor.org/rfc/rfc8680.txt

Sliding Window Random Linear Code (RLC) Forward Erasure Correction (FEC) Schemes for FECFRAME
https://www.rfc-editor.org/rfc/rfc8681.txt

PIM Message Type Space Extension and Reserved Bits
https://www.rfc-editor.org/rfc/rfc8736.txt

Scenarios and Simulation Results of PCE in a Native IP Network
https://www.rfc-editor.org/rfc/rfc8735.txt

Path Computation Element Communication Protocol (PCEP) Extensions for MPLS-TE Label Switched Path (LSP) Auto-Bandwidth Adjustment with Stateful PCE
https://www.rfc-editor.org/rfc/rfc8733.txt

Path Computation Element Communication Protocol (PCEP) Extensions for Establishing Relationships between Sets of Label Switched Paths (LSPs)
https://www.rfc-editor.org/rfc/rfc8697.txt

Restart Signaling for IS-IS
https://www.rfc-editor.org/rfc/rfc8706.txt

Enhanced Feasible-Path Unicast Reverse Path Forwarding
https://www.rfc-editor.org/rfc/rfc8704.txt

Dynamic Link Exchange Protocol (DLEP) Link Identifier Extension
https://www.rfc-editor.org/rfc/rfc8703.txt

Application-Layer Traffic Optimization (ALTO) Cross-Domain Server Discovery
https://www.rfc-editor.org/rfc/rfc8686.txt

A YANG Data Model for the Routing Information Protocol (RIP)
https://www.rfc-editor.org/rfc/rfc8695.txt

Network-Assisted Dynamic Adaptation (NADA): A Unified Congestion Control Scheme for Real-Time Media
https://www.rfc-editor.org/rfc/rfc8698.txt

Видео обзор как всегда, на Ютубе
https://youtu.be/_0-BcP1jCr0

Categories: Без рубрики | Tags: , | Leave a comment

ENCOR 1.2.b

Здесь мы говорим о том, как определить местоположение в WiFi сетях и как это работает в Cisco

Материалы

https://www.cisco.com/en/US/docs/solutions/Enterprise/Mobility/emob30dg/Locatn.pdf
https://www.cisco.com/c/en/us/products/collateral/wireless/wireless-location-appliance/product_data_sheet0900aecd80293728.html
https://www.ciscolive.com/global/on-demand-library.html?search=location#/session/1542224314779001rlxi
https://www.ciscolive.com/global/on-demand-library.html?search=location#/session/1518218902803001dsec
https://www.ciscolive.com/global/on-demand-library.html?search=location#/session/1506627285377001xvy0

https://www.cisco.com/c/en/us/solutions/collateral/enterprise-networks/dna-spaces/solution-overview-c22-742158.html
https://www.cisco.com/c/en/us/products/collateral/wireless/mobility-services-engine/datasheet-c78-734648.html
https://www.cisco.com/c/en/us/td/docs/wireless/cisco-dna-spaces/detectandlocate/b-cisco-cle/location_monitoring.html
https://www.cisco.com/c/en/us/support/wireless/3375-appliance-cisco-mobile-experiences/model.html
https://www.cisco.com/en/US/docs/solutions/Enterprise/Mobility/emob30dg/Locatn.html
https://www.cisco.com/c/en/us/td/docs/solutions/Enterprise/Mobility/WiFiLBS-DG/wifich2.html

YouTube разбор
https://youtu.be/ikt1iOcYUWI

Categories: Без рубрики | Tags: , | Leave a comment

ENCOR 1.2.a

Для этого раздела разбираем вкратце, какие основные дизайны и модели разворачивания Wireless сетей использует Cisco.

Материалы

https://mrncciew.com/2013/03/04/split-mac-vs-local-mac-architecture/
https://www.slideshare.net/CiscoRu/cisco-unified-wirelessnetworkandconvergedaccessdesignsession
https://www.ciscolive.com/c/dam/r/ciscolive/apjc/docs/2018/pdf/BRKEWN-3014.pdf
https://support.spectralink.com/sites/default/files/resource_files/721-1013-000.pdf
https://www.cisco.com/c/en/us/td/docs/wireless/controller/8-5/Enterprise-Mobility-8-5-Design-Guide/Enterprise_Mobility_8-5_Deployment_Guide/ch1_Over.html

Youtube разбор

https://youtu.be/uNUDdGxGMNE


Categories: Без рубрики | Tags: , , | Leave a comment

ENCOR 1.1.b

Продолджая готовиться, повторяем FHRP протоколы, а также SSO

Ссылки
https://www.ciscolive.com/c/dam/r/ciscolive/us/docs/2019/pdf/BRKCRS-2031.pdf
https://www.letsconfig.com/how-to-configure-hsrp-on-cisco/
https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst6500/ios/12-2SY/configuration/guide/sy_swcg/stateful_switchover.html
https://www.cisco.com/c/dam/en/us/products/collateral/ios-nx-os-software/high-availability/prod_presentation0900aecd80456cb8.pdf

Youtube разбор

https://youtu.be/uNUDdGxGMNE




Categories: Без рубрики | Tags: , , , , | Leave a comment