Cisco Cisco IOS Software Release 12.2(33)SRE
1
BGP Support for TCP Path MTU Discovery per
Session
Session
Border Gateway Protocol (BGP) support for Transmission Control Protocol (TCP) path maximum
transmission unit (MTU) discovery introduces the ability for BGP to automatically discover the best
TCP path MTU for each BGP session. TCP path MTU discovery is enabled by default for all BGP
neighbor sessions, but you can disable, and subsequently enable, the TCP path MTU globally for all BGP
sessions or for an individual BGP neighbor session.
transmission unit (MTU) discovery introduces the ability for BGP to automatically discover the best
TCP path MTU for each BGP session. TCP path MTU discovery is enabled by default for all BGP
neighbor sessions, but you can disable, and subsequently enable, the TCP path MTU globally for all BGP
sessions or for an individual BGP neighbor session.
Configuration Information
Configuration information is included in the “Configuring BGP Neighbor Session Options” chapter of
the
the
, Release 12.4T, at the following URL:
Command Reference Information
Command reference information is included in the Cisco IOS IP Routing Protocols Command Reference,
Release 12.2SR, at the following URL:
Release 12.2SR, at the following URL:
New or Modified Commands
The following commands are new or modified for this feature:
•
bgp transport
•
neighbor transport
•
show ip bgp neighbors
Any Internet Protocol (IP) addresses used in this document are not intended to be actual addresses. Any examples, command display output, and
figures included in the document are shown for illustrative purposes only. Any use of actual IP addresses in illustrative content is unintentional and
coincidental.
figures included in the document are shown for illustrative purposes only. Any use of actual IP addresses in illustrative content is unintentional and
coincidental.
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