Configuring Layer 2 Protocol Tunneling Mode

Context

You can configure the following Layer 2 protocol tunneling modes:

Configure the device to replace the default multicast MAC address of Layer 2 protocol packets that can be identified by PEs with another multicast MAC address. This mode can be used to transparently transmit Layer 2 protocol packets of only STP, RSTP, and MSTP.
Configure the device to replace the original multicast MAC address of Layer 2 protocol packets with a specified multicast MAC address. This mode can be used to transparently transmit all types of Layer 2 protocol packets.

Perform either of the following operations on PEs based on the Layer 2 protocol type and the required transparent transmission mode.

Procedure

Replace the default multicast MAC address of Layer 2 protocols that can be identified by PEs with another multicast MAC address.
1. Run system-view
  The system view is displayed.
2. Run bpdu-tunnel stp bridge role provider
  The PE is configured as a provider.
Only the S5720I-SI, S5720S-SI, S5720-SI, S5735-S, S5735S-S, S5735-S-I, S5730S-EI, S5730-SI, S6720-LI, S6720S-LI, S6720S-SI, and S6720-SI support this configuration.
Replace the original multicast MAC address of Layer 2 protocol packets from user networks with a specified multicast MAC address.
1. Run system-view
  The system view is displayed.
2. (Optional) Run bpdu mac-address mac-address [ mac-address-mask ]
  The specific MAC address is configured as the BPDU MAC address.
  
  For the S2720-EI, S5720I-SI, S5720-LI, S5735-L, S5735S-L, S5735S-L-M, S5720S-LI, S5720S-SI, S5720-SI, S5735-S, S5735S-S, S5735-S-I, S5730S-EI, S5730-SI, S6720-LI, S6720S-LI, S6720S-SI, and S6720-SI, if PVST+ packets need to be transparently transmitted, run the bpdu mac-address 0100-0CCC-CCCD command to set the BPDU MAC address to 0100-0CCC-CCCD.
3. Run l2protocol-tunnel protocol-type group-mac group-mac
  The original multicast destination MAC address of Layer 2 protocol packets is replaced with a specified multicast MAC address.
  When configuring Layer 2 protocol tunneling, do not use the following multicast MAC addresses to replace the destination MAC address of Layer 2 protocol packets:
  Destination MAC addresses of BPDUs: 0180-C200-0000 to 0180-C200-002F
  Destination MAC addresses of Smart Link packets: 010F-E200-0004
  Special multicast MAC addresses: 0100-0CCC-CCCC and 0100-0CCC-CCCD. By default, 0100-0CCC-CCCD are not destination MAC addresses of BPDU packets.
  Common multicast MAC addresses that have been used on the switch