HP 6125G HP 6125G & 6125G/XG Blade Switches Layer 3 - IP Routing Confi - Page 246
Configuring inbound route filtering, Configuring IPv6 BGP and IGP route synchronization
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Configuring inbound route filtering Only routes passing the configured filtering can be added into the local IPv6 BGP routing table. Members of a peer group can have different inbound route filtering policies. To configure inbound route filtering: Step Command 1. Enter system view. system-view 2. Enter BGP view. bgp as-number 3. Enter IPv6 address family view. ipv6-family 4. Configure inbound route filtering. filter-policy { acl6-number | ipv6-prefix ipv6-prefix-name } import 5. Apply a routing policy to routes from an IPv6 peer or peer group. peer { ipv6-group-name | ipv6-address } route-policy route-policy-name import 6. Specify an ACL to filter routes peer { ipv6-group-name | imported from an IPv6 peer or ipv6-address } filter-policy peer group. acl6-number import 7. Specify an AS path list to filter routing information imported peer { ipv6-group-name | from an IPv6 peer or peer ipv6-address } as-path-acl group. as-path-acl-number import 8. Specify an IPv6 prefix list to filter routing information peer { ipv6-group-name | imported from an IPv6 peer or ipv6-address } ipv6-prefix peer group. ipv6-prefix-name import 9. Specify the upper limit of prefixes allowed to receive from an IPv6 peer or peer group. peer { ipv6-group-name | ipv6-address } route-limit limit [ percentage ] Remarks N/A N/A N/A Not configured by default. Not applied by default. Not specified by default. Not specified by default. Not specified by default. Optional. Unlimited by default. Configuring IPv6 BGP and IGP route synchronization By default, upon receiving an IBGP route, an IPv6 BGP router checks the route's next hop. If the next hop is reachable, the IPv6 BGP router advertises the route to EBGP peers. If the synchronization feature is configured, in addition to the reachability check of the next hop, the IPv6 BGP router must find an active IGP route with the same destination network segment before it can advertise the IBGP route (use the display ipv6 routing-table protocol command to check the IGP route state). To configure IPv6 BGP and IGP route synchronization: Step 1. Enter system view. 2. Enter BGP view. Command system-view bgp as-number Remarks N/A N/A 236