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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 QinQ

Licensing Requirements and Limitations for QinQ

Involved Network Elements

Other network elements are not required.

Licensing Requirements

QinQ is a basic feature of a switch and is not under license control.

Version Requirements

Table 10-7  Products and versions supporting QinQ

Product

Product Model

Software Version

S12700

S12708, S12712

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

S12710

V200R010C00, V200R011C10

S12704

V200R008C00, V200R009C00, V200R010C00, V200R011C10

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

Feature Limitations

  • For the points of attention when configuring QinQ on a sub-interface, see Licensing Requirements and Limitations for VLAN Termination.
  • The switch can add double tags to untagged packets.
  • The switch forwards packets based only on their outer VLAN tags and learns MAC address entries based on the outer VLAN tags.
  • Selective QinQ is recommended to be enabled on a hybrid interface. Selective QinQ can only take effect on the interface in the inbound direction.
  • When an interface configured with VLAN stacking needs to remove the outer tag from outgoing frames, the interface must join the VLAN specified by stack-vlan in untagged mode. If the outer VLAN does not need to be removed, the interface must join the VLAN specified by stack-vlan in tagged mode.
  • The device configured with selective QinQ can only add an outer VLAN tag to a frame with an inner VLAN tag on an interface, and the outer VLAN ID must exist. Otherwise, the services where selective QinQ is configured are unavailable.
  • If only single-tagged packets from a VLAN need to be transparently transmitted, do not specify the VLAN as the inner VLAN for selective QinQ.
  • When VLAN stacking is configured, do not configure stack-vlan to the VLAN corresponding to the VLANIF interface.

  • VLAN-based flow mirroring allows the device to identify only outer VLAN tags of QinQ packets.
  • The globally configured traffic-limit command that takes effect for all interfaces in the inbound direction is invalid for QinQ packets.
  • If the PW-side interface is a Layer 3 interface switched by the undo portswitch command, the AC-side interface cannot be a Layer 3 interface or subinterface belonging to a Layer 3 interface; otherwise, traffic forwarding is abnormal.

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Updated: 2019-08-21

Document ID: EDOC1000142081

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