3Com Switch 7750 Configuration Guide

680 CHAPTER 61: QOS CONFIGURATION
selective QinQ function can tag a packet with external VLAN tags according to the
ACL rule that the packets matches on the inbound port.
The traffic-based selective QinQ function is configured on the hybrid port of the
edge device connecting the user device to the carrier’s network.
Configuration
Prerequisites
■ ACL rules used for traffic identifying are defined. Refer to “Choosing ACL
Mode for Traffic Flows” on page 639 for defining ACL rules.
■ ID of the external VLAN tag is specified
■ The ports that needs this configuration are specified
Configuration Procedure
acl-rule: Applied ACL rules which can be the combination of various ACL rules.
The way of combination is described in Table 541.
c
CAUTION:
■ Execute the vlan-vpn enable command in the corresponding port view before
executing the traffic-remark command.
■ The traffic-based selective QinQ function is generally configured on the hybrid
port of the edge device connecting the user device to the carrier’s network.
■ QinQ is mutually exclusive with Voice VLAN. That is, you cannot configure both
features on the same port.
■ The port on which the traffic-based selective QinQ function is configured and
the specified uplink port cannot be in the same aggregation group.
Table 551 Configure traffic-based selective QinQ
Operation Command Description
Enter system view system-view -
Create a VLAN vlan vlan-id The vlan-id argument is the ID
of external VLAN tag.
Enter Ethernet port view interface interface-type
interface-number
-
Set the port type to hybrid port link-type hybrid -
Add the hybrid port to the
specified VLAN
port hybrid vlan
vlan-id { tagged | untagged }
vlan-id is the ID of out-layer
VLAN Tag
Enable the QinQ feature in
the port view
vlan-vpn enable Required
Enter QoS view qos -
Enable the ACL rule for traffic
identifying and tag the
matching packets with
external VLAN tags
traffic-remark inbound
acl-rule [ system-index
system-index ] remark-vlan
vlan-id uplink interface-type
interface-number
[ untagged ]
Required
Display the traffic statistics display qos-interface
[ interface-type
interface-number ]
traffic-remark
Required
You can execute the display
command in any view
Display all the QoS settings on
the port
display qos-interface
[ interface-type
interface-number ] all