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1. Enter system view.
system-view
N/A
2. Enter BGP IPv6 unicast
address family view,
BGP-VPN IPv6 unicast
address family view, or BGP
IPv6 multicast address family
view.
• Enter BGP IPv6 unicast
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
N/A
3. Configure IPv6 BGP route
dampening.
dampening
[ half-life-reachable
half-life-unreachable reuse
suppress ceiling |
route-policy
route-policy-name ] *
By default, IPv6 BGP route
dampening is not configured.
Controlling BGP path selection
By configuring BGP path attributes, you can control BGP path selection.
Setting a preferred value for routes received
Perform this task to set a preferred value for specific routes to control BGP path selection.
Among multiple routes that have the same destination/mask and are learned from different peers,
the one with the greatest preferred value is selected as the optimal route.
To set a preferred value for routes from a peer or peer group (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:
N/A
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