Basic of BGP routing Protocol – A Two Napkin Protocol – Part 1
A 30-year-old protocol that still has its value: - BGP protocol. It is also called the Two Napkin Protocol (Not an official name). If I look at a bit of the history of this protocol then in 1989 when …
What are the best (5) tools for troubleshooting BGP related issues?
Here are what I think for diagnosing and resolving BGP issues: 1. BGP Monitoring Tools Track BGP routes, detect anomalies, and troubleshoot route-related issues. • Examples: • BGPMon: …
BGP - Understanding Inbound Traffic Engineering
In this document I aim to explain the various options that you as a Network Operator can use to influence your inbound traffic flow via BGP. This topic is critical to understand for the CCNP …
BGP Zero to Hero Part 8, BGP filtering methods - Cisco Learning …
Oct 1, 2022 · The BGP Prefix-Based Outbound Route Filtering feature uses Border Gateway Protocol (BGP) outbound route filter (ORF) send and receive capabilities to minimize the …
I am a little bit new to the BGP family. Is this a good explanation of ...
Dec 28, 2024 · In networking, BGP refers to the Border Gateway Protocol, which is used to exchange routing information between different autonomous systems (AS), while eBGP …
BGP <--> OSPF route redistribution - Cisco Learning Network
May 7, 2025 · I think BGP on RTR-1 is seeing a better route in the routing table because of OSPF (Higher Weight) and never adds the OSPF routes to its BGP table. I was expecting eBGP to …
BGP Active State - Cisco Learning Network
I do see an "active" state in your output. You've probably administratively shutdown the neighbor relationship on the other side. So if you keep repeatedly trying "show ip bgp summary", you …
BGP Zero to Hero Part 7, BGP Communities - Cisco Learning …
Feb 7, 2022 · ' BGP standard communities using numeric values In the previous lab, we used ACL to identify routes then match them in a route map then assign one of the four standard …
BGP Zero to Hero Part 9, AS-Path Attribute Manipulation
BGP uses the AS_PATH attribute for loop detection and avoidance. The AS_PATH attribute is a list of AS numbers that the update has traversed. BGP router adds it’s own AS number to the …
BGP error: What causes this? - Cisco Learning Network
With this 2 modifications ("no bgp default ipv4-unicast" in both routers and change remote AS for neighbor 2FFF:1:2:4::8 from 222 to 77) your configuration should work (without the "no …