Browse our collection of bgp articles
BGP Private and Public AS Range: On the internet, we have 2 byte AS Numbers and 4 Byte AS Numbers. In this post, we will explain what are the BGP...
BGP Route Server is used at the Internet Exchange Point to simplify the BGP Peering process. Instead of managing, and maintaining hundreds of Peering sessions in a large Internet Exchange...
IGP vs BGP is one of the topics every Network Engineer want to learn in their career. In this post, without going into each IGP protocol detail, where and why...
BGP Multipath - by default, BGP installs only a single path in IBGP and EBGP deployment. If prefixes are learned via multiple paths, BGP supports multipath for IBGP, EBGP, or...
MP-BGP (Multiprotocol BGP) is an extension of the BGP protocol. Standard BGP only supports IPv4 unicast address families, whereas MP-BGP supports more than 15 different BGP address families. RFC4760 defines...
BGP PIC Fundamentals: BGP PIC (Prefix Independent Convergence) is a BGP Fast Reroute mechanism which can provide sub-second convergence even for the 900K internet prefixes by taking the help of...
BGP Weight Attribute is used in Cisco routers. In this post, with the below topology, we will look at why the BGP weight attribute is used, why it BGP weight...
BGP AS Path Prepending or BGP prepend is a common technique for incoming path manipulating. When we want to engineer the traffic coming from another BGP AS to our BGP...
BGP Confederation is specified in RFC 5065, which describes the use of Autonomous System Confederations for BGP - Border Gateway Protocol. This topic and many other simple and advanced BGP...
Autonomous System Provider Authorization - ASPA is a new approach for the Path Validation in BGP Information Security. Only Path Validation Standard in IETF is BGP SEC which is specified...
AIGP stands for Accumulated IGP Metric Attribute which is specified in RFC 7311. IGPs (Interior Gateway Protocols) are designed to run within a single administrative domain and they make path-selection...
Unique RD per PE per VRF is a deployment option in MPLS Layer 3 VPN. I am explaining this topic in deep detail in my “BGP Zero to Hero” course....