Configuring the interval for sending updates for the same route

A BGP router sends an update message to its peers when a route is changed. If the route changes frequently, the BGP router keeps sending updates for the same route, resulting route flapping. To prevent this situation, perform this task to configure the interval for sending updates for the same route to a peer or peer group.

To configure the interval for sending the same update to a peer or peer group (IPv4 unicast/multicast address family):

Step	Command	Remarks
1. Enter system view.	system-view	N/A
2. Enter BGP instance view or BGP-VPN instance view.	Enter BGP instance view:bgp as-number [ instance instance-name ] Enter BGP-VPN instance view: bgp as-number [ instance instance-name ] ip vpn-instance vpn-instance-name	N/A
3. Configure the interval for sending updates for the same route to a peer or peer group.	peer { group-name \| ipv4-address [ mask-length ] } route-update-interval interval	By default, the interval is 15 seconds for an IBGP peer and 30 seconds for an EBGP peer.

To configure the interval for sending the same update to a peer or peer group (IPv6 unicast/multicast address family):

Step	Command	Remarks
1. Enter system view.	system-view	N/A
2. Enter BGP instance view or BGP-VPN instance view.	Enter BGP instance view:bgp as-number [ instance instance-name ] Enter BGP-VPN instance view: bgp as-number [ instance instance-name ] ip vpn-instance vpn-instance-name	N/A
3. Configure the interval for sending updates for the same route to a peer or peer group.	peer { group-name \| ipv6-address [ prefix-length ] } route-update-interval interval	By default, the interval is 15 seconds for an IBGP peer and 30 seconds for an EBGP peer.

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Setting the session retry timer	home	Enabling BGP to establish an EBGP session over multiple hops