Reference Guide

344 | Border Gateway Protocol IPv4 (BGPv4)
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Defaults
keepalive
= 60 seconds; holdtime = 180 seconds.
Command Modes
ROUTER BGP
Usage
Information
Timer values configured with the neighbor timers command override the timer values
configured with the any other command.
When two neighbors that are configured with different
keepalive and holdtime values negotiate
for new values, the resulting values will be as follows:
• the lower of the
holdtime values is the new holdtime value, and
• whichever is the lower value; one-third of the new
holdtime value, or the
configured
keepalive value is the new keepalive value.
Command
History
neighbor update-source
c e s
Enable the E-Series software to use Loopback interfaces for TCP connections for BGP
sessions.
Syntax
neighbor {ip-address | peer-group-name} update-source interface
To use the closest interface, use the no neighbor {ip-address | peer-group-name} update-source
interface command.
Parameters
Defaults
Not configured.
Command Modes
ROUTER BGP
keepalive
Enter a number for the time interval, in seconds, between keepalive
messages sent to the neighbor routers.
Range: 1 to 65535
Default: 60 seconds
holdtime
Enter a number for the time interval, in seconds, between the last
keepalive message and declaring the router dead.
Range: 3 to 65535
Default: 180 seconds
Version 8.3.7.0 Introduced on the S4810.
Version 7.8.1.0 Introduced support on S-Series
Version 7.7.1.0 Introduced support on C-Series
ip-address
Enter the IP address of the peer router in dotted decimal format.
peer-group-name
Enter the name of the peer group to disable all routers within the peer
group.
interface
Enter the keyword loopback followed by a number of the loopback
interface.
Range: 0 to 16383.