Tuning And Optimizing Ipv6 Mbgp Networks; Prerequisites; Configuring Ipv6 Mbgp Soft Reset - HP A6600 Configuration Manual

Tuning and optimizing IPv6 MBGP networks

Prerequisites

Before tuning and optimizing an OSPF network, complete the following tasks:
• Enable IPv6
• Configure the IPv6 MBGP basic functions

Configuring IPv6 MBGP soft reset

After modifying a route selection policy, you have to reset IPv6 MBGP connections to make the new one
take effect.
The current IPv6 MBGP implementation supports the route-refresh feature that enables dynamic route
refresh without terminating IPv6 MBGP connections.
However, if a peer not supporting route-refresh exists in the network, you need to configure peer
keep-all-routes to save all routes from the peer. When the routing policy is changed, the system will
update the IPv6 MBGP routing table and apply the new policy.
Soft reset through route-refresh
If the peer is enabled with route-refresh, when the IPv6 MBGP route selection policy is modified on a
router, the router advertises a route-refresh message to its IPv6 MBGP peers, which resend their routing
information to the router after they receive the message. Therefore, the local router can perform dynamic
route update and apply the new policy without terminating IPv6 MBGP connections.
To do...
1. Enter system view.
2. Enter BGP view.
3. Enter IPv6 address family
view.
4. Enable IPv6 BGP route refresh
for a peer/peer group.
Perform a manual soft-reset
If the peer does not support route-refresh, you can use the peer keep-all-routes command to save all the
route updates from the peer, and then use the refresh bgp ipv6 multicast command to soft-reset IPv6
MBGP connections to refresh the IPv6 MBGP routing table and apply the new policy without terminating
IPv6 MBGP connections.
To do...
1. Enter system view.
2. Enter BGP view.
3. Enter IPv6 address family
view.
Use the command...
system-view
bgp as-number
ipv6-family
peer { ipv6-group-name |
ipv6-address } capability-advertise
route-refresh
Use the command...
system-view
bgp as-number
ipv6-family
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Remarks
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Optional.
Enabled by default.
Remarks
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