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Configuration Guide - Ethernet Switching

CloudEngine 8800, 7800, 6800, and 5800 V200R003C00

This document describes the configuration of Ethernet services, including configuring MAC address table, link aggregation, VLANs, MUX VLAN, Voice VLAN, VLAN mapping, QinQ, GVRP, VCMP, STP/RSTP/MSTP, VBST, SEP, RRPP, ERPS, LBDT, and Layer 2 protocol transparent transmission.
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Configuring the Multicast MAC Address for Layer 2 Protocol Transparent Transmission

Configuring the Multicast MAC Address for Layer 2 Protocol Transparent Transmission

Context

To prevent a backbone network edge device from sending the received Layer 2 protocol packets to its CPU for processing and ensure that the Layer 2 protocol packets are tunneled across the backbone network, configure the edge device to replace the multicast destination MAC address in Layer 2 protocol packets with a specified multicast MAC address.

Perform the following operations on PEs.

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run l2protocol-tunnel protocol-type group-mac { group-mac | default-group-mac }

    The original multicast destination MAC address of Layer 2 protocol packets is replaced with a specified multicast MAC address.

    Most Layer 2 protocols can be identified by protocol type. You can configure a group MAC address for this type of protocol to reduce configuration workload. The default group MAC address is 0100-0ccd-cdd0.

    NOTE:

    Do not replace the destination MAC addresses of STP, GVRP, and GMRP packets with the same multicast MAC address.

    Do not replace the destination MAC addresses of EOAM3ah, LACP, and DLDP packets with the same multicast MAC address.

    When configuring Layer 2 protocol transparent transmission, 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 address of Smart Link packets: 010F-E200-0004
    • Special multicast MAC addresses: 0100-0CCC-CCCC and 0100-0CCC-CCCD
    • Common multicast MAC addresses that have been used on the device

  3. Run commit

    The configuration is committed.

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Updated: 2019-05-08

Document ID: EDOC1100004351

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