Deployment Guide

374 | Border Gateway Protocol IPv4 (BGPv4)
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Usage
Information
This command enables soft-reconfiguration for the specified BGP neighbor. BGP will store all updates
for inbound IPv4 routes received by the neighbor but will not reset the peer-session.
You cannot set this configuration for a peer that is associated with a peer group. Similarly, you cannot
associate a peer to a peer group if that peer is already configured with these settings.
Related
Commands
Command
History
neighbor subnet
c e s
Enable passive peering so that the members of the peer group are dynamic
Syntax
neighbor peer-group-name subnet subnet-number mask
To remove passive peering, use the no neighbor peer-group-name subnet subnet-number mask
command.
Parameters
Defaults
Not configured.
Command Modes
ROUTER BGP
Command
History
neighbor timers
c e s
Set keepalive and hold time timers for a BGP neighbor or a peer group.
Syntax
neighbor {ip-address | peer-group-name} timers keepalive holdtime
Caution: Inbound update storage is a memory-intensive operation. The entire BGP update
database from the neighbor is stored in memory regardless of the inbound policy results
applied on the neighbor.
Note: This command is supported in BGP Router Configuration mode for IPv4 Unicast
address only.
show ip bgp neighbors Display routes received on a neighbor
Version 8.4.1.0 Added support for IPv4 multicast and IPv4 unicast address families
Version 7.8.1.0 Introduced support on S-Series
Version 7.7.1.0 Introduced support on C-Series
Version 7.4.1.0 Introduced
subnet-number
Enter a subnet number in dotted decimal format (A.B.C.D.) as the allowable range of
addresses included in the Peer group.
To allow all addresses, enter 0.0.0.0/0.
mask
Enter a prefix mask in / prefix-length format (/x).
Version 7.8.1.0 Introduced support on S-Series
Version 7.7.1.0 Introduced support on C-Series