Showing posts with label bgp. Show all posts
Showing posts with label bgp. Show all posts
Sunday, June 9, 2024

Cisco hidden command: bgp bestpath as-path multipath-relax

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Hidden command   bgp bestpath as-path multipath-relax What for is this? By default, Cisco does not do load-balance or distribute traffic bet...
Friday, March 8, 2024

BGP Stream: An Analysis of One Year of BGP Incidents

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04/03/2024 By  Alejandro Acosta , R&D Coordinator at LACNIC LACNIC presents  the first webpage  designed to show incidents and an analys...
Thursday, February 1, 2024

A Much-Needed BGP RFC: AS Path Prepending

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Introduction The Border Gateway Protocol (BGP) plays a critical role in building and maintaining Internet routing tables, so much so that it...
Tuesday, December 5, 2023

BGP: IPv6 Only example between OpenBGPD and FRR

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FRR: show run frr# sh run  Building configuration... Current configuration: ! frr version 8.1 frr defaults traditional hostname frr log sysl...
Thursday, December 1, 2022

An Interesting Change Is Coming to BGP

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A route leak is defined as the propagation of routing announcement(s) beyond their intended scope (RFC 7908). But why do route leaks occur? ...
Monday, July 8, 2019

BGP: To filter or not to filter by prefix size. That is the question

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Introduction In order to write these post the R+D team and the WARP team joint together after analyzing some security incidents related ...
Monday, February 29, 2016

Read a BGP live stream from CAIDA

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Objective   Read a BGP live stream from CAIDA and insert them into a BGP session What do we need   bgpreader from the bgpstream core pac...
Thursday, February 21, 2013

Advertising IPv6 Routes Between IPv4 BGP Peers (Cisco)

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Situation:    I want to advertise IPv6 networks / prefixes over IPv4 eBGP session History:    Although not common, this case may occur in so...