HP HPE FlexNetwork MSR Router Series Configuration Manual page 409

Interface
Destination: FE80::/10
NextHop
Interface
Destination: FF00::/8
NextHop
Interface
# Enable BGP update packet debugging on PE 2. The output shows that PE 2 has advertised
the route for 100::/96, and the AS_PATH is 100 600.
<PE2> terminal monitor
<PE2> terminal logging level 7
<PE2> debugging bgp update vpn-instance vpn1 10:2::2 ipv6
<PE2> refresh bgp all export ipv6 vpn-instance vpn1
*Jun 13 16:12:52:096 2012 PE2 BGP/7/DEBUG:
*Jun 13 16:12:53:024 2012 PE2 BGP/7/DEBUG:
BGP.vpn1: Send UPDATE MSG to peer 10:2::2(IPv6-UNC) NextHop: 10:2::1.
# Execute the display bgp routing-table ipv6 peer received-routes command on CE 2 to
verify that CE 2 has not received the route to 100::/96.
<CE2> display bgp routing-table ipv6 peer 10:2::1 received-routes
Total number of routes: 0
2. Configure BGP AS number substitution:
# Configure BGP AS number substitution on PE 1.
<PE1> system-view
[PE1] bgp 100
[PE1-bgp] ip vpn-instance vpn1
[PE1-bgp-vpn1] peer 10:1::2 substitute-as
[PE1-bgp-vpn1] quit
[PE1-bgp] quit
# Configure BGP AS number substitution on PE 2.
<PE2> system-view
[PE2] bgp 100
[PE2-bgp] ip vpn-instance vpn1
[PE2-bgp-vpn1] peer 10:2::2 substitute-as
[PE2-bgp-vpn1] quit
[PE2-bgp] quit
Verifying the configuration
# The output shows that among the routes advertised by PE 2 to CE 2, the AS_PATH of 100::/96 has
changed from 100 600 to 100 100.
: GE2/0/1
: ::
: NULL0
: ::
: NULL0
BGP_IPV6.vpn1: Send UPDATE to update-group 0 for following destinations:
Origin : Incomplete
AS path : 100 600
Next hop : ::FFFF:10.1.1.1
100::/96,
399
Cost : 0
Protocol : Direct
Preference: 0
Cost : 0
Protocol : Direct
Preference: 0
Cost : 0