Service Manual

neighbor timers
Set keepalive and hold time timers for a BGP neighbor or a peer group.
Syntax
neighbor {ipv6-address | peer-group-name} timers keepalive holdtime
To return to the default values, use the no neighbor {ipv6-address | peer-group-name} timers
command.
Parameters
ipv6-address Enter the IPv6 address in the x:x:x:x::x format.
NOTE: The :: notation specifies successive hexadecimal fields 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
Version Description
9.9(0.0) Introduced on the FN IOM.
9.2(0.0) Introduced on the MXL 10/40GbE Switch IO Module.
Usage Information
Timer values configured with the neighbor timers command override the timer values configured with the
timers bgp 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
• 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 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.
IPv6 Border Gateway Protocol (IPv6 BGP) 673