Configuring Inter-As Ipv6 Vpn Option B; Configuring Inter-As Ipv6 Vpn Option C - HP HSR6800 Configuration Manual

Configuring inter-AS IPv6 VPN option B

For inter-AS option B, only one method is available: Change the next hop on an ASBR. With this
method, MPLS LDP is not required between ASBRs. Therefore, MP-EBGP routes get their next
hops changed by default before being redistributed to MP-IBGP. However, normal EBGP routes to
be advertised to IBGP do not have their next hops changed by default.
To configure inter-AS option B on ASBR PEs:
Step
1. Enter system view.
2. Enter interface view for the
interface connecting to the
remote ASBR-PE.
3. Configure the IP address of
the interface.
4. Return to system view.
5. Enter BGP view.
6. Enter BGP-VPNv6
subaddress family view.
7. Disable route target based
filtering of VPNv6 routes.
In the inter-AS option B solution, the ASBR PEs must maintain all VPNv6 routing information and
advertise the information to peer ASBR PEs. In this case, the ASBR PEs must receive all VPNv6
routing information without performing route target-based filtering.
In the inter-AS option B solution, for the same VPN, the route targets for the VPN instances on the
PEs in different ASs must match.

Configuring inter-AS IPv6 VPN option C

To configure inter-AS IPv6 VPN option C, perform proper configurations on PEs and ASBR PEs, and
configure routing policies on the ASBR PEs.
Configuring the PEs
Establish an ordinary IBGP peer relationships between a PE and an ASBR PE in an AS and an
MP-EBGP peer relationship between PEs in different ASs.
The PEs and ASBR PEs in an AS must be able to exchange labeled routes.
To configure a PE for inter-AS IPv6 VPN option C:
Step
1. Enter system view.
2. Enter BGP view.
3. Configure the ASBR PE in
the same AS as the IBGP
peer.
Command
system-view
interface interface-type
interface-number
ip address ip-address { mask |
mask-length }
quit
bgp as-number
ipv6-family vpnv6
undo policy vpn-target
Command
system-view
bgp as-number
peer { group-name | ip-address }
as-number as-number
393
Remarks
N/A
N/A
N/A
N/A
N/A
N/A
By default, a PE filters received
VPNv6 routes by route targets.
The routes surviving the filtering
are added to the routing table,
and the others are discarded.
Remarks
N/A
N/A
N/A