Alcatel-Lucent 6850-48 参考指南

BGP Commands

OmniSwitch CLI Reference Guide

page 44-61

Configures the KEEPALIVE message interval and hold time interval (in seconds) with regards to the 
specified peer. 

ip bgp neighbor ip_address timers keepalive holdtime

A 32-bit IP address for the BGP peer. 

The interval (in seconds) between KEEPALIVE messages. The valid 
values are zero (0) or the range 1–21845.

The hold time interval between updates to peers, in seconds. The valid 
range is 0, 3–65535.

OmniSwitch 6850, 6855, 9000, 9000E

• Configures the time interval between KEEPALIVE messages sent by this peer. KEEPALIVE messages 

do not contain route updates or indicate a change in the status of the BGP peer; they serve only to tell 
the receiving BGP peer that the connection is still live and the peer is reachable. 

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

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

• Setting the keep alive value to zero means no keep alive 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. 

• Configures the tolerated hold time interval, in seconds, for messages to this peer from other peers. The 

hold timer is used during the connection setup process and in on-going connection maintenance with 
BGP peers. If this peer does not receive a KEEPALIVE, UPDATE, or NOTIFICATION message 
within this time period, then the BGP connection will be closed.

• By default, the hold-interval of 180 seconds is three times the default keep-alive interval of 60 seconds. 

The hold-interval can never be less than three times the keep-alive value. 

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