Command Line Reference Guide

Defaults
• keepalive = 60 seconds
• holdtime = 180 seconds
Command Modes ROUTER BGP
Command History
Version 9.0(1.3) Introduced on the S5000.
Usage
Information
Timer values configured with the neighbor timers command overrides the timer values
configured with the any other command.
When two neighbors, configured with different keepalive and holdtime values,
negotiate for new values, the resulting values are 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.
neighbor update-source
Enable the S5000 software to use Loopback interfaces for TCP connections for BGP sessions.
S5000
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
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. The range is 0 to 16383.
Defaults Not configured.
Command Modes ROUTER BGP
Command History
Version 9.0(1.3) Introduced on the S5000.
Usage
Information
Loopback interfaces are up constantly and the BGP session may need one interface constantly
up to stabilize the session. The neighbor update-source command is not necessary for
directly connected internal BGP sessions.
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