H3C S5500-SI Series Operation Manual
Also see for S5500-SI Series: ConfigurationOperation manualConfiguration guideConfiguration guideConfiguration guide
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Operation Manual – QinQ-BPDU TUNNELH3C S5500-SI Series Ethernet Switches Chapter 1 QinQ Configuration1-3DA SA Tag Frame Load6 bytes 6 bytes 4 bytes 46 ~1500 bytesFCS4 bytesTPID User Priority CFI VLAN ID2 bytes 3 bits 1bit 12 bitsDA SA Tag Frame Load FCS4 bytesTPID User Priority CFI VLAN ID2 bytes 3 bits 1bit 12 bitsDA SA Tag Frame Load6 bytes 6 bytes 4 bytes 46 ~1500 bytesFCS4 bytesTPID User Priority CFI VLAN ID2 bytes 3 bits 1bit 12 bitsDA SA Tag Frame Load FCS4 bytesTPID User Priority CFI VLAN ID2 bytes 3 bits 1bit 12 bitsFigure 1-2 Tag structure of an Ethernet frameOn devices of different vendors, the TPID field of the outer VLAN tag of QinQ framesmay have different default values. You can set and/or modify this TPID value.Normally, a frame with the TPID field being 0x8100 is regarded carrying a VLAN tagwith it and is processed in the preset way when it reaches a switch. Those with theirTPID not being 0x8100 are regarded carrying no VLAN tag.After you configure the TPID value to be adjustable, the switch replaces the TPID valuein the outer VLAN tag of a received frame with the customer-defined value beforeforwarding the frame, so that the frame, when arriving at the public network, is ofspecific protocol type. This enables a switch to communicate with devices of othervendors.1.2 Configuring Basic QinQFollow these steps to configure basic QinQ:To do... Use the command... RemarksEnter system view system-view —EnterEthernetport viewinterface interface-typeinterface-numberEnterEthernet portview orportgroupviewEnter portgroupviewport-group { manualport-group-name | aggregationagg-id }Use either commandConfigured in Ethernetport view, the setting iseffective on the currentport only; configured inport group view, thesetting is effective on allports in the port groupEnable QinQ for theEthernet port qinq enable RequiredDisabled by default. |
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