neighbor timers

Specifies how frequently a device sends KEEPALIVE messages to its BGP neighbors, as well as how long the device waits for KEEPALIVE or UPDATE messages before concluding that a neighbor is dead.

Syntax

neighbor { ip-address | ipv6-address | peer-group-name } timers keep-alive keepalive_interval hold-time holdtime_interval

no neighbor { ip-address | ipv6-address | peer-group-name } timers keep-alive keepalive_interval hold-time holdtime_interval

Parameters

ip-address: IPv4 address of the neighbor
ipv6-address: IPv6 address of the neighbor
peer-group-name: Peer group name configured by the neighbor peer-group-name command.
keep-alive keepalive_interval: Frequency (in seconds) with which a device sends keepalive messages to a peer. Range is from 0 through 65535 seconds. The default is 60.
hold-time holdtime_interval: Interval in seconds that a device waits to receive a keepalive message from a peer before declaring that peer dead. Range is from 0 through 65535 seconds. The default is 180.

Modes

BGP configuration mode

BGP address-family IPv4 unicast VRF configuration mode

BGP address-family IPv6 unicast VRF configuration mode

Usage Guidelines

The no form of the command restores the defaults.

Examples

The following example sets the keepalive timer for a device to 120 seconds and the hold-timer to 360 seconds.

 
device# configure terminal
device(config)# router bgp
device(config-bgp-router)# neighbor 10.11.12.13 timers keep-alive 120 hold-time 360

The following example sets the keepalive timer to 120 seconds and the hold-timer to 360 seconds for VRF instance "red".

device# configure terminal
device(config)# router bgp
device(config-bgp-router)# address-family ipv6 unicast vrf red
device(config-bgp-ipv6u-vrf)# neighbor 10.11.12.13 timers keep-alive 120 hold-time 360