Users Guide

NOTE: The :: notation species successive hexadecimal elds of zeros.
peer-group-name Enter the name of the peer group to set the timers for all routers within the peer
group.
keepalive Enter a number for the time interval, in seconds, between keepalive messages sent
to the neighbor routers. the range is from 1 to 65535. the default is 60 seconds.
holdtime Enter a number for the time interval, in seconds, between the last keepalive
message and declaring the router dead. The range is from 3 to 65535. The default
is 180 seconds.
Defaults
• keepalive = 60 seconds
• holdtime = 180 seconds
Command Modes ROUTER BGP
Command History
This guide is platform-specic. For command information about other platforms, refer to the relevant Dell
Networking OS Command Line Reference Guide.
The following is a list of the Dell Networking OS version history for this command.
Version 8.3.19.0 Introduced on the S4820T.
Version 8.4.2.1 Introduced on the C-Series and S4810.
Version 8.2.1.0 Introduced on the E-Series ExaScale.
Version 7.4.1.0 Introduced on the E-Series TeraScale.
Usage Information
Timer values congured with the neighbor timers command override the timer values congured with
the timers bgp command.
When two neighbors, congured with dierent 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
• whichever is the lower value; one-third of the new holdtime value, or the congured keepalive value is
the new keepalive value
neighbor update-source
Enable the software to use Loopback interfaces for TCP connections for BGP sessions.
Syntax
neighbor {ipv6-address | peer-group-name} update-source loopback interface
To use the closest interface, use the no neighbor {ipv6-address | peer-group-name}
update-source loopback interface command.
Parameters
ipv6-address Enter the IPv6 address in the x:x:x:x::x format.
1008
IPv6 Border Gateway Protocol (IPv6 BGP)