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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):
Step
Command
Remarks
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
instance-name
]
d. ip vpn-instance
vpn-instance-name
e. address-family ipv4
[
unicast
]
•
Enter BGP IPv4 multicast
address family view:
f. bgp
as-number
[
instance
instance-name
]
g. address-family ipv4
multicast
N/A
3.
Set a preferred value for
routes received from a peer
or peer group.
peer
{
group-name
|
ipv4-address
[
mask-length
] }
preferred-value
value
The default preferred value is 0.
To set a preferred value for routes from a peer or peer group (IPv6 unicast/multicast address family):
Step
Command
Remarks
1.
Enter system view.
system-view
N/A
Содержание HPE FlexNetwork 7500 series
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