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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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Enabling Port Bridge

Enabling Port Bridge


The port bridge function enables an interface to forward packets in which the source and destination MAC addresses are the same.

By default, an interface does not forward packets whose source and destination MAC addresses are both learned by this interface. When the interface receives such a packet, it discards the packet as an invalid packet.

After the port bridge function is enabled on the interface, the interface forwards such a packet if the destination MAC address of the packet is in the MAC address table.

The port bridge function is used in the following scenarios:

The device is used as an access device in a data center and is connected to servers. Each server is configured with multiple virtual machines. The virtual machines need to transmit data to each other. If data between virtual machines is transmitted on the server, the data transmission rate and server performance may be affected. To improve the data transmission rate and server performance, enable the port bridge function on the interfaces connected to the servers so that the device forwards data packets between the virtual machines.


CE6880EI does not support this function.


  1. Run system-view

    The system view is displayed.

  2. Run interface interface-type interface-number

    The interface view is displayed.

  3. Run port bridge enable

    The port bridge function is enabled.

    By default, the port bridge function is disabled on an interface.

  4. Run commit

    The configuration is committed.

Verifying the Configuration

Run the display current-configuration command to check whether the port bridge function is enabled.

Updated: 2019-05-08

Document ID: EDOC1100004351

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