(Optional) Configuring Multicast Traffic Forwarding over a BIERv6 I-PMSI Tunnel

An I-PMSI tunnel connects all PEs in the same MVPN.

Prerequisites

A VPN instance has been created for the unicast network. For details, see the configuration examples in this document.

Context

An I-PMSI tunnel is established between a sender PE and all receiver PEs. If an I-PMSI tunnel needs to be established, complete the following configurations on the sender PE and all receiver PEs.

Procedure

Configure the sender PE.
1. Run system-view
  The system view is displayed.
2. Run multicast ipv6 mvpn ipv6-underlay mvpnid
  An MVPN ID is configured.
  
  You are advised to set the MVPN ID to the loopback interface address of the local device.
3. Run ip vpn-instance vpn-instance-name
  The VPN instance view is displayed.
4. Run ipv6-family
  The VPN instance IPv6 address family view is displayed.
5. Run multicast ipv6 routing-enable
  Multicast routing is enabled in the VPN instance IPv6 address family view.
6. Run mvpn
  The VPN instance IPv6 address family MVPN view is displayed.
7. Run sender-enable
  The PE is configured as the sender PE.
8. Run ipv6 underlay enable
  IPv6 forwarding is enabled.
9. Run src-dt6 locator locator-name sid sid-val [ signal-format msid ]
  A Src.DT6 SID is configured.
  
  The Src.DT6 SID must be an IPv6 address of the network segment to which the locator of the local device belongs.
  
  By default, the device uses the Prefix-SID to carry Src.DT6 SID information. To configure the device to use the MSID to carry Src.DT6 SID information, run the signal-format msid command.
10. (Optional) Run vpn-target
  An MVPN target is configured for the VPN instance MVPN address family.
11. (Optional) Configure a PIM-SM RPT setup mode.
  - To configure the mode in which the VPN ASM RPT goes across the public network, run the rpt-spt mode command.
  - To configure the mode in which the VPN ASM RPT does not go across the public network, run the spt-only mode command.
12. (Optional) Run bier load-balance-entropy source-group
  The entropy mode is configured for MVPNv6 over BIERv6 load balancing.
  
  Perform this operation only if BIERv6 load balancing has been enabled using the max-load-balance number command.
13. Run ipmsi-tunnel
  The MVPN I-PMSI view is displayed.
14. Run bier [ sub-domain sub-domain-val ] [ bsl { 64 | 128 | 256 } ]
  The I-PMSI tunnel type is set to BIER.
15. Run quit
  Exit the MVPN I-PMSI view.
16. Run quit
  Exit the VPN instance IPv6 address family MVPN view.
17. Run quit
  Exit the VPN instance IPv6 address family view.
18. Run quit
  Exit the VPN instance view.
19. Run commit
  The configuration is committed.
Configure a receiver PE.
Perform the following operations on all receiver PEs.
1. Run system-view
  The system view is displayed.
2. Run multicast ipv6 mvpn ipv6-underlay mvpn-id
  An MVPN ID is configured.
  
  You are advised to set the MVPN ID to the loopback interface address of the local device.
3. Run ip vpn-instance vpn-instance-name
  The VPN instance view is displayed.
4. Run ipv6-family
  The VPN instance IPv6 address family view is displayed.
5. Run multicast ipv6 routing-enable
  Multicast routing is enabled in the VPN instance IPv6 address family view.
6. Run mvpn
  The VPN instance IPv6 address family MVPN view is displayed.
7. (Optional) Run vpn-target
  An MVPN target is configured.
8. Run c-multicast signaling bgp
  BGP is configured as the signaling protocol for transmitting C-multicast routes.
9. Run ipv6 underlay enable
  IPv6 forwarding is enabled.
10. (Optional) Run vrf-route-import compatible draft
  The device is configured to encapsulate the VRF Route Import Extended Community in BGP Update messages using the format defined in a relevant IETF draft.
  
  By default, a Huawei device uses the message encapsulation format defined in an RFC to encapsulate the VRF Route Import Extended Community. If a non-Huawei device uses the message encapsulation format defined in the IETF draft, run the vrf-route-import compatible draft command to enable the Huawei device to use the format defined in the IETF draft so that the two devices can communicate.
11. (Optional) Configure a PIM-SM RPT setup mode.
  - Across the public network: To configure this mode, run the rpt-spt mode command.
  - Not across the public network: To configure this mode, run the spt-only mode command.
12. Run quit
  Exit the VPN instance IPv6 address family MVPN view.
13. Run quit
  Exit the VPN instance IPv6 address family view.
14. Run quit
  Exit the VPN instance view.
15. Run commit
  The configuration is committed.