Remarks
3. Enter BGP IPv6 unicast
instance view or BGP-VPN
IPv6 unicast instance view.
ipv6-family [ unicast ] N/A
4. Permit the local AS number to
appear in routes from a peer
or peer group and specify the
appearance times.
peer { group-name |
ipv6-address } allow-as-loop
[ number ]
By default, the local AS number is
not allowed in routes from a peer
or peer group.
Disabling BGP from considering AS_PATH during best route selection
To disable BGP from considering AS_PATH during best route selection (IPv4):
Step Command Remarks
1. Enter system view.
system-view N/A
2. Enter BGP view or BGP-VPN
instance view.
• Enter BGP view:
bgp as-number
• Enter BGP-VPN instance view:
a. bgp as-number
b. ip vpn-instance
vpn-instance-name
N/A
3. Enter BGP IPv4 unicast
instance view or BGP-VPN
IPv4 unicast instance view.
ipv4-family [ unicast ] N/A
4. Disable BGP from considering
AS_PATH during best route
selection.
bestroute as-path-neglect
By default, BGP considers
AS_PATH during best route
selection.
To disable BGP from considering AS_PATH during best route selection (IPv6):
Step Command Remarks
1. Enter system view.
system-view N/A
2. Enter BGP view or BGP-VPN
instance view.
• Enter BGP view:
bgp as-number
• Enter BGP-VPN instance view:
a. bgp as-number
b. ip vpn-instance
vpn-instance-name
N/A
3. Enter BGP IPv6 unicast
instance view or BGP-VPN
IPv6 unicast instance view.
ipv6-family [ unicast ] N/A
4. Disable BGP from considering
AS_PATH during best route
selection.
bestroute as-path-neglect
By default, BGP considers
AS_PATH during best route
selection.
Advertising a fake AS number to a peer or peer group
After you move a BGP router from an AS to another AS (from AS 2 to AS 3 for example), you have to
modify the AS number of the router on all its EBGP peers. To avoid such modifications, you can configure
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