3Com Switch 7750 Configuration Guide

166 CHAPTER 20: SELECTIVE QINQ CONFIGURATION
Configuring Selective QinQ
c
CAUTION:
■ You need to execute the vlan-vpn enable command on the inbound ports
before performing the operations listed in Table 100.
■ QinQ is not applicable to ports with the Voice VLAN feature enabled.
c
CAUTION:
■ Type-A I/O Modules do not support the selective QinQ feature. Type A I/O
Modules include: 3C16860, 3C16861, LS81FS24A, 3C16858, 3C16859, and
32Gbps and 64Gbps Switch Fabrics.
■ The 3C16863 and 3C16862 I/O Modules do not support the QinQ feature.
Configuring Outer Tag
Replacement
n
The double-vlan-id command cannot be used while the vlan-vpn enable and
raw-vlan-id inbound commands are in effect on the port.
Table 100 Configure selective QinQ
Operation Command Description
Enter system view system-view -
Enter Ethernet port view interface interface-type
interface-number
-
Enable QinQ for the port vlan-vpn enable Required
By default, QinQ is
disabled.
Configure the outer VLAN tag to be
added to a packet and configure
the upstream port for this packet
vlan-vpn vid vlan-id uplink
interface-type
interface-number
[ untagged ]
Required
Specify the inner VLAN tags by
specifying VLAN IDs
raw-vlan-id inbound
vlan-id-list
Required
Table 101 Configure outer tag replacement
Operation Command Description
Enter system view system-view -
Enter Ethernet port view interface interface-type
interface-number
-
Configure to replace the outer tag
of matched packets with the
specified tag of the specified VLAN,
and enter QinQ view
vlan-vpn vid vlan-id uplink
interface-type
interface-number
[ untagged ]
Required
Specify one or more inner VLAN
tags and an outer VLAN tag as the
match condition
double-vlan-id inbound
vlan-id-list outer-vid vlan-id
Required
By default, no match
condition is defined