Cisco Cisco IOS Software Release 12.2(14)SX
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Cisco IOS Release 12.2(2)T, 12.0(16)ST, 12.2(14)S, 12.0(22)S, 12.2(13)T, and 12.2(25)S
iBGP Multipath Load Sharing
Feature History
This feature module describes the iBGP Multipath Load Sharing feature. It includes the following
sections:
sections:
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Feature Overview
When a Border Gateway Protocol (BGP) speaking router with no local policy configured receives
multiple network layer reachability information (NLRI) from the internal BGP (iBGP) for the same
destination, the router will choose one iBGP path as the best path. The best path is then installed in the
IP routing table of the router. For example, in
multiple network layer reachability information (NLRI) from the internal BGP (iBGP) for the same
destination, the router will choose one iBGP path as the best path. The best path is then installed in the
IP routing table of the router. For example, in
, although there are three paths to autonomous
system 200, Router 2 determines that one of the paths to autonomous system 200 is the best path and
uses this path only to reach autonomous system 200.
uses this path only to reach autonomous system 200.
Release
Modification
12.2(2)T
This feature was introduced.
12.0(16)ST
This feature was integrated into Cisco IOS Release 12.0(16)ST.
12.2(14)S
This feature was integrated into Cisco IOS Release 12.2(14)S. This feature
was enhanced to support multiple redundant paths.
was enhanced to support multiple redundant paths.
12.0(22)S
This feature was integrated into Cisco IOS Release 12.0(22)S.
12.2(13)T
This feature was enhanced to support multiple redundant paths.
12.0(25)S
This feature was enhanced to support multiple redundant paths.