244
BGP-VPN IPv6 unicast
address family view, or BGP
IPv6 multicast address family
view.
a. bgp as-number
[ instance
instance-name ]
b. address-family ipv6
[ unicast ]
• Enter BGP-VPN IPv6 unicast
address family view:
c. bgp as-number
[ instance
instance-name ]
d. ip vpn-instance
vpn-instance-name
e. address-family ipv6
[ unicast ]
• Enter BGP IPv6 multicast
address family view:
f. bgp as-number
[ instance
instance-name ]
g. address-family ipv6
3. Configure preferences for
EBGP, IBGP, and local BGP
routes.
preference
{ external-preference
internal-preference
local-preference |
route-policy
route-policy-name }
The default preferences for
EBGP, IBGP, and local BGP
routes are 255, 255, and 130.
4. Configure an EBGP route as
a shortcut route.
network
ipv6-address
prefix-length
short-cut
By default, an EBGP route has a
preference of 255.
Configuring the default local preference
The local preference is used to determine the optimal route for traffic leaving the local AS. When a
BGP router obtains from several IBGP peers multiple routes to the same destination, but with
different next hops, it considers the route with the highest local preference as the optimal route.
This task allows you to specify the default local preference for routes sent to IBGP peers.
To specify the default local preference (IPv4 unicast/multicast address family):
1. Enter system view.
system-view
N/A
2. Enter BGP IPv4 unicast
address family view,
BGP-VPN IPv4 unicast
address family view, or BGP
IPv4 multicast address family
view.
• Enter BGP IPv4 unicast
address family view:
a. bgp as-number
[ instance
instance-name ]
b. address-family ipv4
[ unicast ]
• Enter BGP-VPN IPv4 unicast
address family view:
c. bgp as-number
[ instance
N/A
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