Cisco ASR 9000 Series Configuration Manuallines page 298

Configuring VPLS with BGP Autodiscovery and LDP Signaling
RP/0/RSP0/CPU0:router(config-l2vpn-bg-bd)# transport-mode vlan passthrough
Enables VC type 4 for BGP autodiscovery.
Step 7
vfi {vfi-name}
Example:
RP/0/RSP0/CPU0:router(config-l2vpn-bg-bd)# vfi vfi-east
Enters virtual forwarding instance (VFI) configuration mode.
Step 8
autodiscovery bgp
Example:
RP/0/RSP0/CPU0:router(config-l2vpn-bg-bd-vfi)# autodiscovery bgp
Enters BGP autodiscovery configuration mode where all BGP autodiscovery parameters are configured.
This command is not provisioned to BGP until at least the VPN ID and the signaling protocol is configured.
Step 9 vpn-id vpn-id
Example:
RP/0/RSP0/CPU0:router(config-l2vpn-bg-bd-vfi)# vpn-id 100
Specifies the identifier for the VPLS service. The VPN ID has to be globally unique within a PE router. i.e., the same
VPN ID cannot exist in multiple VFIs on the same PE router. In addition, a VFI can have only one VPN ID.
Step 10 rd {as-number:nn | ip-address:nn | auto}
Example:
RP/0/RSP0/CPU0:router(config-l2vpn-bg-bd-vfi-ad)# rd auto
Specifies the route distinguisher (RD) under the VFI.
The RD is used in the BGP NLRI to identify VFI. Only one RD can be configured per VFI, and except for rd auto the
same RD cannot be configured in multiple VFIs on the same PE.
When rd autois configured, the RD value is as follows: {BGP Router ID}:{16 bits auto-generated unique index}.
Step 11 route-target {as-number:nn | ip-address:nn | export | import }
Example:
RP/0/RSP0/CPU0:router(config-l2vpn-bg-bd-vfi-ad)# route-target 500:99
Specifies the route target (RT) for the VFI.
At least one import and one export route targets (or just one route target with both roles) need to be configured in each
PE in order to establish BGP autodiscovery between PEs.
L2VPN and Ethernet Services Configuration Guide for Cisco ASR 9000 Series Routers, IOS XR Release 6.3.x
272
Implementing Multipoint Layer 2 Services