Configuring a BIER Tunnel to Carry Multicast Traffic

NG MVPNs use BIER P2MP tunnels to carry multicast traffic.

Context

Each edge node in a BIER sub-domain must be configured with a BFR-ID that is unique to the sub-domain. In the NG MVPN over BIER scenario, a BFR-ID needs to be configured for the sender PE and receiver PEs. Ps do not require BFR-IDs, but you need to enable BIER on the Ps.

Procedure

Perform the following steps on a PE to be configured as a sender PE:
1. Run system-view
  The system view is displayed.
2. Run multicast mvpnmvpn-id
  An MVPN ID is configured.
3. Run ip vpn-instancevpn-instance-name
  The VPN instance view is displayed.
4. Run ipv4-family
  The VPN instance IPv4 address family view is displayed.
5. Run multicast routing-enable
  Multicast routing is enabled in the VPN instance IPv4 address family view.
6. Run mvpn
  The VPN instance IPv4 address family MVPN view is displayed.
7. Run c-multicast signaling bgp
  BGP is configured as the signaling protocol for transmitting C-multicast routes.
8. Run sender-enable
  The PE is configured as a sender PE.
9. (Optional) Run vpn-target (VPN instance IPv4 address family MVPN view)
  MVPN targets are configured in the VPN instance IPv4 address family MVPN view.
10. (Optional) Configure the PIM-SM MDT setup mode:
  - To set up PIM-SM MDTs across the public network, run the rpt-spt mode command.
  - To set up PIM-SM MDTs not across the public network, run the spt-only mode command.
11. Run ipmsi-tunnel
  The MVPN I-PMSI view is displayed.
12. Run bier [ sub-domain sub-domain-val ] [ bsl { 64 | 128 | 256 } ]
  The I-PMSI tunnel type is set to BIER.
13. Run commit
  The configuration is committed.
Perform the following steps on a PE to be configured as a receiver PE:
1. Run system-view
  The system view is displayed.
2. Run multicast mvpnmvpn-id
  An MVPN ID is configured.
3. Run ip vpn-instancevpn-instance-name
  The VPN instance view is displayed.
4. Run ipv4-family
  The VPN instance IPv4 address family view is displayed.
5. Run multicast routing-enable
  Multicast routing is enabled in the VPN instance IPv4 address family view.
6. Run mvpn
  The VPN instance IPv4 address family MVPN view is displayed.
7. (Optional) Run vpn-target (VPN instance IPv4 address family MVPN view)
  MVPN targets are configured in the VPN instance IPv4 address family MVPN view.
8. Run c-multicast signaling bgp
  BGP is configured as the signaling protocol for transmitting C-multicast routes.
9. (Optional) Run vrf-route-import compatible draft
  The VRF Route Import Extended Community carried in BGP Update messages is configured to use the format defined in an IETF draft.
  
  If a non-Huawei device uses the message encapsulation format defined in an IETF draft, run the vrf-route-import compatible draft command to enable a Huawei device to use the message encapsulation format defined in the draft so that the Huawei device can communicate with the non-Huawei device.
10. (Optional) Configure the PIM-SM MDT setup mode:
  - To set up PIM-SM MDTs across the public network, run the rpt-spt mode command.
  - To set up PIM-SM MDTs not across the public network, run the spt-only mode command.
11. (Optional) Run export msdp
  The transmission of (S, G) entry information in BGP Source Active A-D routes to the RP through MSDP SA messages is enabled.
  
  If PIM-SM MDT setup is not across the public network, you can configure a PE or CE as a VPN instance's RP. If a CE is configured as an RP, the CE needs to establish an MSDP peer relationship with its connected PE. To enable this PE to transmit (S, G) entry information in BGP Source Active A-D routes to the CE configured as the RP, run the export msdp command.
12. Run commit
  The configuration is committed.