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S12700 V200R012C00 Configuration Guide - Ethernet Switching

This document describes the configuration of Ethernet services, including configuring MAC address table, link aggregation, VLANs, VLAN aggregation, MUX VLAN, VLAN termination, 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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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 function is a basic feature of a switch and is not under license control.

Version Requirements

Table 6-3  Products and versions supporting the VLAN Switch function


Product Model

Software Version


S12708, S12712

V200R005C00, V200R006C00, V200R007C00, V200R007C20, V200R008C00, V200R009C00, V200R010C00, V200R011C10, V200R012C00, V200R013C00


V200R010C00, V200R011C10, V200R012C00, V200R013C00


V200R008C00, V200R009C00, V200R010C00, V200R011C10, V200R012C00, V200R013C00

For details about software mappings, visit Hardware Query Tool and search for the desired product model.

Feature Limitations

  • The source and destination interfaces specified in the vlan-switch command must be hybrid or trunk interfaces, and cannot be access interfaces or Eth-Trunk member interfaces.
  • The VLANs used in the VLAN Switch function cannot be created in the system view.
  • When double-tagged VLAN Switch is configured, both inbound and outbound interfaces must be located on the X series cards or non-X series cards.
  • The switch still forwards the packets matching VLAN Switch entries when VLAN Switch is configured on the interface of a card (excluding the X series cards) and packets are discarded, including but not limited to 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 function.
  • 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 the VLAN Switch function.
  • 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 function is not recommended for a ring network.
  • SA cards of S series do not support stack-vlan.
Updated: 2019-01-18

Document ID: EDOC1100038103

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