Does BGP support load balancing?
BGP implements load balancing through route recursion and route selection.
How many links can be assigned for load balancing or sharing in BGP?
Understanding Configuration of Up to 512 Equal-Cost Paths With Optional Consistent Load Balancing. You can configure the equal-cost multipath (ECMP) feature with up to 512 paths for external BGP peers.
How does BGP share routes?
Each BGP speaker, which is called a “peer”, exchanges routing information with its neighboring peers in the form of network prefix announcements. Each peer transfers the information internally inside its own autonomous system. Just like in real life, usually more than one route exists to reach a given destination.
What is eiBGP multipath?
The eiBGP Multipath for Non-VRF Interfaces (IPv4/IPv6) feature allows you to configure multipath load sharing among native IPv4 and IPv6 external Border Gateway Protocol (eBGP) and internal BGP (iBGP) paths for improved load balancing in deployments.
How does BGP peering work?
Peering. Two routers that have established connection for exchanging BGP information, are referred to as BGP peers. Such BGP peers exchange routing information between them via BGP sessions that run over TCP, which is a reliable, connection oriented & error free protocol.
What does BGP peering mean?
This mean that each BGP speaker has a white list of neighbors, representing remote peers, with which the peering is allowed. The TCP connection is established between two peers and they exchange messages to open and confirm the connection parameters followed by routes exchange.
What is BGP Med?
The BGP MED attribute, commonly referred to as the BGP metric, provides a means to convey to a neighboring Autonomous System (AS) a preferred entry point into the local AS. BGP MED is a non-transitive optional attribute and thus the receiving AS cannot propagate it across its AS borders.