Administrator Guide

CONFIG-ROUTER-BGP mode
neighbors {ip-address | ipv6-address | peer-group-name} timers keepalive holdtime
○ keepalive: 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: Time interval, in seconds, between the last keepalive message and declaring the BGP peer is dead. The range
is from 3 to 65536. The default is 180 seconds.
● Configure timer values for all neighbors.
CONFIG-ROUTER-BGP mode
timers bgp keepalive holdtime
○ keepalive: 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: Time interval, in seconds, between the last keepalive message and declaring the BGP peer is dead. The range
is from 3 to 65536. The default is 180 seconds.
DellEMC# configure terminal
DellEMC(conf)# router bgp 400
DellEMC(conf-router_bgp)# network 10.1.1.0 mask 255.255.255.0
DellEMC(conf-router_bgp)# timers bgp 80 120
DellEMC(conf-router_bgp)# exit
In the above example configuration, the BGP timers are set with keepalive time as 80 seconds with which the system sends
keepalive messages to the BGP peer and holdtime as 120 seconds with which the system waits for a message from the BGP
peer before concluding that the peer is dead.
To view non-default values, use the show config command in CONFIGURATION ROUTER BGP mode or the show
running-config bgp command in EXEC Privilege mode.
Setting the extended timer
To configure BGP idle hold time, use the following commands.
Timer values configured with the neighbor timers extended command override the timer values configured with the
timers bgp extended command.
The peer remains in idle state based on the configured idle-holdtime. The less the idle-holdtime, lesser the peer
remains in idle state.
NOTE:
For the new idle-holdtime to take effect, you need to shutdown the respective peer manually using neighbor
shutdown command and enable the peer again.
● Configure idle-holdtime values for a BGP neighbor or peer group.
CONFIG-ROUTER-BGP mode
neighbors {ip-address | ipv6-address | peer-group-name} timers extended idle-holdtime
idle-holdtime: the range is from 1 to 32767. Time interval, in seconds, during which the peer remains in idle state. The
default is 15 seconds.
● Configure idle-holdtime values for all BGP neighbors.
CONFIG-ROUTER-BGP mode
timers bgp extended idle holdtime
idle-holdtime: the range is from 1 to 32767. Time interval, in seconds, during which the peer remains in idle state. The
default is 15 seconds.
Enabling or disabling BGP neighbors
You can enable or disable all the configured BGP neighbors using the shutdown all command in ROUTER BGP mode.
To disable all the configured BGP neighbors:
1. Enter the router bgp mode using the following command:
210
Border Gateway Protocol (BGP)