Table Of Contents
BGP Dynamic Neighbors
BGP dynamic neighbor support allows Border Gateway Protocol (BGP) peering to a group of remote neighbors that are defined by a range of IP addresses. Each range can be configured as a subnet IP address. BGP dynamic neighbors are configured using a range of IP addresses and BGP peer groups. After a subnet range is configured for a BGP peer group and a TCP session is initiated for an IP address in the subnet range, a new BGP neighbor is dynamically created as a member of that group. The new BGP neighbor will inherit any configuration for the peer group. The output for three show commands has been updated to display information about dynamic neighbors.
Configuration information is included in the "Configuring BGP Neighbor Session Options" module of the Cisco IOS IP Routing Protocols Configuration Guide, at the following URL:
The following sections provide information about this feature:
•BGP Dynamic Neighbors
•Implementing BGP Dynamic Neighbors Using Subnet Ranges
•Implementing BGP Dynamic Neighbors Using Subnet Ranges: 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 commands are new or modified for this feature:
•debug ip bgp range
•show ip bgp neighbors
•show ip bgp peer-group
•show ip bgp summary
Detailed information about these commands is included in the Cisco IOS IP Routing Protocols Command Reference, Release 12.2SX, at the following URL:
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.
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