Prerequisites; Configuring Ipv6 Bgp Timers - HP 4800G Series Configuration Manual

route-refresh feature that enables dynamic IPv6 BGP routing table refresh without needing to
disconnect IPv6 BGP links.
With this feature enabled on all IPv6 BGP routers in a network, when a routing policy modified on a
router, the router advertises a route-refresh message to its peers, which then send their routing
information back to the router. Therefore, the local router can perform dynamic routing information
update and apply the new policy without tearing down connections.
If a peer not supporting route-refresh exists in the network, you need to configure the peer
keep-all-routes command on the router to save all routes from the peer. When the routing policy is
changed, the system will update the IPv6 BGP routing table and apply the new policy.

Prerequisites

Before configuring IPv6 BGP timers, you need to:
Enable IPv6
Configure IPv6 BGP basic functions

Configuring IPv6 BGP Timers

Follow these steps to configure IPv6 BGP timers:
To do...
Enter system view
Enter BGP view
Enter IPv6 address family view
Configure
IPv6 BGP
timers
Configure the interval for sending the
same update to an IPv6 peer/peer
group
Timers configured using the timer command have lower priority than timers configured using the
peer timer command.
The holdtime interval must be at least three times the keepalive interval.
Specify keepalive
interval and holdtime
Configure keepalive
interval and holdtime
for an IPv6 peer/peer
group
Use the command...
system-view
bgp as-number
ipv6-family
timer keepalive keepalive
hold holdtime
peer { ipv6-group-name |
ipv6-address } timer
keepalive keepalive hold
holdtime
peer { ipv6-group-name |
ipv6-address }
route-update-interval
interval
1-13
Remarks
—
—
—
Optional
The keepalive interval
defaults to 60 seconds,
holdtime defaults to 180
seconds.
Optional
The interval for sending the
same update to an iBGP peer
or an eBGP peer defaults to
15 seconds or 30 seconds