H3C Technologies H3C SR8800 - Manual (Page 368)

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Configuring IPv6 BGP route attributes
This section describes how to use IPv6 BGP route attributes to modify BGP routing policy. These attributes
are:
• IPv6 BGP protocol preference
• Default LOCAL_PREF attribute
• MED attribute
• NEXT_HOP attribute
• AS_PATH attribute
Configuration rerequisites
Before you configure IPv6 BGP route attributes, complete the following tasks:
• Enable IPv6 with the ipv6 command in system view.
• Configure IPv6 BGP basic functions.
Configuring IPv6 BGP preference and default LOCAL_PREF
and NEXT_HOP attributes
To perform this configuration:
Step Command Remarks
1. Enter system view. system-view N/A
2. Enter BGP view. bgp as-number N/A
3. Enter IPv6 address family
view.
ipv6-family N/A
4. Configure preference values
for IPv6 BGP external,
internal, local routes.
preference { external-preference
internal-preference
local-preference | route-policy
route-policy-name }
Optional.
The default preference values of
external, internal and local routes are
255, 255, 130 respectively.
5. Configure the default local
preference.
default local-preference value
Optional.
The value defaults to 100.
6. Advertise routes to an IPv6
peer/peer group with the
local router as the next hop.
peer { ipv6-group-name |
ipv6-address } next-hop-local
By default, IPv6 BGP specifies the
local router as the next hop for routes
sent to an IPv6 EBGP peer/peer
group, but not for routes sent to an
IPv6 IBGP peer/peer group.