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Configuration Guide - Ethernet Switching

S7700 and S9700 V200R011C10

This document describes the configuration of Ethernet services, including configuring link aggregation, VLANs, Voice VLAN, VLAN mapping, QinQ, GVRP, MAC table, STP/RSTP/MSTP, SEP, and so on.
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Enabling the MUX VLAN Function on an Interface

Enabling the MUX VLAN Function on an Interface

Context

You must enable the MUX VLAN function to implement the following functions:
  • The principal VLAN and subordinate VLAN can communicate with each other.
  • Interfaces in a group VLAN can communicate with each other.
  • Interfaces in a separate VLAN cannot communicate with each other.

Pre-configuration Tasks

Before enabling MUX VLAN function, complete the following tasks:
  • Add the interface to a principal or subordinate VLAN as an access, hybrid, or trunk interface.

  • Configure the interface to allow multiple common VLANs. The interface can join only one MUX VLAN.

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run interface interface-type interface-number

    The interface view is displayed.

  3. Run port link-type { hybrid | access | trunk }

    The link type of the interface is set.

  4. Run port mux-vlan enable vlan vlan-id

    The MUX VLAN function is enabled.

    After the MUX VLAN function is enabled on an interface, VLAN mapping or VLAN stacking cannot be configured on the interface.

    You cannot create a VLANIF interface for a subordinate group VLAN or separate VLAN. However, you can create a VLANIF interface for a principal VLAN. If a VLANIF interface is created for a principal VLAN, you cannot run the port mux-vlan enable vlan vlan-id command on an interface of the ES0D0G24SA00 and ES0D0G24CA00 cards of SA series to enable the MUX VLAN function including the principle and subordinate VLANs.

    The port mux-vlan enable command is not supported on a negotiation-auto or negotiation-desirable port.

    NOTE:
    • Disabling MAC address learning or limiting the number of learned MAC addresses on an interface will compromise the performance of the MUX VLAN function.

    • MUX VLAN and port security cannot be configured on the same interface.

    • MUX VLAN and MAC address authentication cannot be configured on the same interface.

    • MUX VLAN and 802.1x authentication cannot be configured on the same interface.

    • If a DHCP server is configured in the subordinate VLAN and DHCP clients are configured in the principal VLAN, the DHCP clients may fail to obtain IP addresses. Therefore, when the DHCP snooping function is configured, configure the DHCP server in the principal VLAN.

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Updated: 2019-10-18

Document ID: EDOC1000178310

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