H3C Technologies H3C S7500E Series Switches - Manual (Page 341)

11-12
Configuring IPv6 BGP Route Attributes
This section describes how to use IPv6 BGP route attributes to modify BGP routing policy. These
attributes are:
z IPv6 BGP protocol preference
z Default LOCAL_PREF attribute
z MED attribute
z NEXT_HOP attribute
z AS_PATH attribute
Prerequisites
Before configuring this task, you have:
z Enabled IPv6 function
z Configured IPv6 BGP basic functions
Configuring IPv6 BGP Preference and Default LOCAL_PREF and NEXT_HOP
Attributes
Follow these steps to perform this configuration:
To do… Use the command… Remarks
Enter system view system-view —
Enter BGP view bgp as-number —
Enter IPv6 address family view ipv6-family —
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.
Configure the default local
preference
default local-preference value
Optional
The value defaults to 100.
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
Required
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.