BGP Support for Fast Peering Session Deactivation

Table Of Contents

BGP Support for Fast Peering Session Deactivation

Configuration Information

Command Reference Information

Master Command List

BGP Support for Fast Peering Session Deactivation

---

The BGP Support for Fast Peering Session Deactivation feature introduces an event-driven notification system that allows a Border Gateway Protocol (BGP) process to monitor BGP peering sessions on a per-neighbor basis. This feature improves the response time of BGP to adjacency changes by allowing BGP to detect an adjacency change and deactivate the terminated session in between standard BGP scanning intervals. Enabling this feature improves overall BGP convergence.

Configuration Information

Configuration information is included in the "Configuring BGP Neighbor Session Options" module of the Cisco IOS BGP Configuration Guide, Release 12.4T, at the following URL:

http://www.cisco.com/en/US/docs/ios/12_4t/ip_route/configuration/guide/brbpeer.html

The following sections provide information about this feature:

•BGP Support for Fast Peering Session Deactivation

•Configuring Fast Session Deactivation

•Configuring Fast Session Deactivation for a BGP Neighbor: Example

For a complete list of features included in the "Configuring BGP Neighbor Session Options" module, see the Feature Information table located toward the end of the module.

Command Reference Information

The following command is new or modified for this feature:

•neighbor fall-over

Detailed information about this command is included in the Cisco IOS IP Routing: BGP Command Reference, at the following URL:

http://www.cisco.com/en/US/docs/ios/iproute_bgp/command/reference/irg_book.html

Master Command List

For an alphabetical list of all Cisco IOS commands, see the Cisco IOS Master Command List at the following URL:

http://www.cisco.com/en/US/docs/ios/mcl/allreleasemcl/all_book.html

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.

© 2006, 2007 Cisco Systems, Inc. All rights reserved.