HP 6125XLG - Page 239

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Step Command Remarks

3. Enter BGP IPv6 unicast

address family view or

BGP-VPN IPv6 unicast

address family view.

address-family ipv6 [ 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

the router to advertise a fake AS number 2 to its EBGP peers so that the EBGP peers still think that Router

A is in AS 2.

To advertise a fake AS number to a peer or peer group (IPv4):

Ste

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. Advertise a fake AS number to

a peer or peer group.

peer { group-name | ip-address }

fake-as as-number

By default, no fake AS number is

advertised to a peer or peer group.

This command applies to only

EBGP peers or EBGP peer groups.

To advertise a fake AS number to a peer or peer group (IPv6):

Ste