Reference Guide

mask Enter a prefix mask in / prefix-length format (/x).
Defaults Not configured.
Command Modes ROUTER BGP
Command History
Version 8.2.1.0 Introduced on the E-Series ExaScale.
Version 7.4.1.0 Introduced
neighbor timers
Set keepalive and hold time timers for a BGP neighbor or a peer group.
C-Series, E-Series
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 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 3 to
65535. The default is 180 seconds.
Defaults
• keepalive = 60 seconds
• holdtime = 180 seconds
Command Modes ROUTER BGP
Command History
Version 8.2.1.0 Introduced on the E-Series ExaScale.
Version 7.4.1.0 Introduced
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:
527