Alcatel-Lucent 6850-48 参考指南

BGP Commands

page 44-226

OmniSwitch CLI Reference Guide

Configures the KEEPALIVE message interval and hold time interval (in seconds) with regards to the spec-
ified BGP peer. 

ipv6 bgp neighbor ipv6_address [timers num num]

A 128-bit IPv6 address for the BGP peer. 

The KEEPALIVE message interval in seconds.

The hold time interval in seconds.

OmniSwitch 6850, 6855, 9000, 9000E

• KEEPALIVE messages do not contain route updates or indicate a change in the status of the BGP peer; 

they indicate to the receiving BGP peer that the connection is still live and the peer is reachable. 

• By default, the KEEPALIVE interval of 30 seconds is one-third the default hold time interval of 90 

seconds. The KEEPALIVE interval can never be more than one-third the value of the hold time inter-
val. When the hold time interval is reached without receiving KEEPALIVE or other updates messages, 
the peer is considered dead.

• Setting the KEEPALIVE value to zero means no KEEPALIVE messages will be sent. 

• Once a connection is established with a peer and a time period of the length specified in this command 

transpires with no messages from the remote peer, then the connection with that remote peer will be 
considered dead. 

• The hold timer is used during the connection setup process and for on-going connection maintenance 

with BGP peers. If the peer does not receive a KEEPALIVE, UPDATE, or NOTIFICATION message 
within this time period, then the BGP connection will be closed.

• Both the KEEPALIVE and hold time interval should be set at the same time.

• Using this command without the variables resets the variables to their default value.

-> ipv6 bgp neighbor 2001::1 timers 80 240

num (keepalive)

30 seconds

num (holdtime)

90 seconds