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S12700 V200R010C00 Configuration Guide - Ethernet Switching

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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Licensing Requirements and Limitations for VLAN Switch

Licensing Requirements and Limitations for VLAN Switch

Involved Network Elements

Other network elements are not required.

Licensing Requirements

The VLAN Switch feature is a basic feature of a switch and is not under license control.

Version Requirements

Table 6-3  Products and versions supporting VLAN Switch


Product Model

Software Version


S12708, S12712

V200R005C00, V200R006C00, V200R007C00, V200R007C20, V200R008C00, V200R009C00, V200R010C00, V200R011C10


V200R010C00, V200R011C10


V200R008C00, V200R009C00, V200R010C00, V200R011C10

To know details about software mappings, see Hardware Query Tool.

Feature Limitations

  • The source and destination interfaces specified in the vlan-switch command must be hybrid or trunk interfaces. These interfaces cannot be access interfaces or Eth-Trunk member interfaces.
  • The VLANs used in the VLAN Switch feature cannot be created in the system view.
  • When double-tagged VLAN Switch is configured, both inbound and outbound interfaces must be located on an X series card or non-X series card.
  • If VLAN Switch is configured on the interface of a card (excluding the X series cards), the switch forwards all packets that match VLAN Switch entries, even if the switch is configured to discard the packets. For example, matching packets will be forwarded even in the following situations:
    • The STP status of the interface is Blocking.
    • The action is set to discard when the interface does not learn MAC address entries.
    • The MAC address of packets is all 0s.
    • The packets contain the blackhole MAC address.
    To prevent the preceding problem, configure a traffic policy containing redirection to replace VLAN Switch.
  • The VLANs used in QinQ cannot be used by the VLAN Switch feature.
  • When an outer VLAN tag in double-tagged frames is used for VLAN stacking, VLAN mapping, or control VLAN, the VLAN tag cannot be used by VLAN Switch.
  • On a ring network, packets matching VLAN Switch entries can pass through the interfaces blocked by loop prevention protocols. Consequently, broadcast storms may occur. Therefore, the VLAN Switch feature is not recommended for a ring network running a loop prevention protocol.
  • SA cards on S series switches do not support stack-vlan.
Updated: 2019-08-21

Document ID: EDOC1000142081

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