Defaults • keepalive = 60 seconds• holdtime = 180 secondsCommand Modes ROUTER BGPCommand History Version 8.3.11.1 Introduced on the Z9000.Version 8.3.7.0 Introduced on the S4810.Version 7.8.1.0 Introduced on the S-Series.Version 7.7.1.0 Introduced on the C-Series.UsageInformationTimer values configured with the neighbor timers command overrides the timer valuesconfigured 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 theconfigured keepalive value, is the new keepalive value.neighbor update-sourceEnable the E-Series software to use Loopback interfaces for TCP connections for BGP sessions.C-Series, E-Series, S-Series, Z-Series, S4810Syntax neighbor {ip-address | peer-group-name} update-source interfaceTo use the closest interface, use the no neighbor {ip-address | peer-group-name} update-source interface command.Parametersip-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 peergroup.interface Enter the keyword loopback followed by a number of the Loopbackinterface. The range is 0 to 16383.Defaults Not configured.Command Modes ROUTER BGPCommand History Version 8.3.11.1 Introduced on the Z9000.Version 8.3.7.0 Introduced on the S4810.Version 7.8.1.0 Introduced on the S-Series.Version 7.7.1.0 Introduced on the C-Series.379
