HP FlexNetwork 3600 v2 Series Command Reference Manual page 420

Description
Use timer to specify the IPv6 BGP keepalive interval and holdtime interval.
Use undo timer to restore the default.
By default, the keepalive and holdtime intervals are 60s and 180s.
The timers configured with the peer timer command are preferred to the timers configured with the
timer command.
If the holdtime interval is configured as 0, no keepalive message will be sent to the peer, and the peer
connection will never time out. if the keepalive interval is configured as 0 and the negotiated hold
time is not 0, one third of the hold time is taken as the interval for sending keepalive messages.
If neither the holdtime interval nor the keepalive interval is configured as 0, the holdtime interval must
be at least three times the keepalive interval.
The configured timers apply to all IPv6 BGP peers, but they become valid for an IPv6 BGP peer only
after the relevant IPv6 BGP connection is reset.
After this command is executed, no peer connection is closed at once. The configured hold time is
used for negotiation when a peer relationship is reestablished.
Related commands: peer timer.
Examples
# Configure keepalive interval and holdtime interval as 60 and 180 seconds.
<Sysname> system-view
[Sysname] bgp 100
[Sysname-bgp] ipv6-family
[Sysname-bgp-af-ipv6] timer keepalive 60 hold 180
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