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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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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

S7700

S7703, S7706, S7712

V100R003C01, V100R006C00, V200R001(C00&C01), V200R002C00, V200R003C00, V200R005C00, V200R006C00, V200R007C00, V200R008C00, V200R009C00, V200R010C00, V200R011C10

S9700

S9703, S9706, S9712

V200R001(C00&C01), V200R002C00, V200R003C00, V200R005C00, V200R006C00, V200R007(C00&C10), 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.
  • ES0D0G24SA00 and ES0D0G24CA00 cards of the S7700, and EH1D2G24SSA0 and EH1D2S24CSA0 cards of the S9700 cannot add double tags to untagged packets, whereas other cards 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. For ES0D0G24SA00 and ES0D0G24CA00 cards of the S7700, and EH1D2G24SSA0 and EH1D2S24CSA0 cards of the S9700 of SA cards, after selective QinQ is configured on an interface of the SA card, VLAN mapping, for example, port vlan-mapping vlan 20 map-vlan 20, must be configured to map the VLAN to itself from which single-tagged packets need to be transparently transmitted.
  • 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.
  • After VLAN stacking is configured on an interface of an SA series card, SEP, ERPS, or RRPP cannot be configured on this interface.
  • 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: 2019-10-18

Document ID: EDOC1000178310

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