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 Kirk …
Basic of BGP routing Protocol – A Two Napkin Protocol – Part 2
Jan 10, 2025 · BGP is scalable and stable, hence it handles millions of routes in the global routing table. There is a term called BGP free backbone, this is possible that our backbone iol-0 router doesn't …
BGP Zero to Hero Part 8, BGP filtering methods - Cisco Learning Network
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 number of BGP …
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 ROUTE …
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 come in …
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 (External BGP) is a …
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 AS_PATH …
BGP error: What causes this? - Cisco Learning Network
Does "no bgp default ipv4-unicast" mean the routers are not using ipv4 routing? No. Without that command, every neighbor (independently of the address-family of the neighbor) will also be internally …
BGP Zero to Hero Part 7, BGP Communities - Cisco Learning Network
Feb 7, 2022 · BGP Communities are useful to solve asymmetrical customer routing problems. 2-Service providers can make an agreement with your customers on a specific policy to be applied to their …
BGP Route-Reflector questions (a nightmare) - Cisco Learning Network
Mar 6, 2023 · The rest of your questions can be answered by asking yourself ‘what are the route-reflector rules’ and then thinking through it carefully, then checking the BGP tables of the routers and …