User's Manual

21-28
If the data flow of DSLAM2 enters the switch’s downlink port1, the configuration is as follows:
Switch(config)#class-map c1
Switch(config-classmap-c1)#match vlan 1001
Switch(config-classmap-c1)#exit
Switch(config)#class-map c2
Switch(config-classmap-c2)#match vlan 2001
Switch(config-classmap-c2)#exit
Switch(config)#class-map c3
Switch(config-classmap-c3)#match vlan 3001
Switch(config-classmap-c3)#exit
Switch(config)#policy-map p1
Switch(config-policymap-p1)#class c1
Switch(config-policymap-p1-class-c1)# set s-vid 1002
Switch(config-policymap-p1)#class c2
Switch(config-policymap-p1-class-c2)# set s-vid 2002
Switch(config-policymap-p1)#class c3
Switch(config-policymap-p1-class-c3)# set s-vid 3002
Switch(config-policymap-p1-class-c3)#exit
Switch(config-policymap-p1)#exit
Switch(config)#interface ethernet 1/0/1
Switch(config-if-ethernet1/0/1)# service-policy input p1
21.4 Flexible Q-in-Q Troubleshooting
If flexible Q-in-Q policy can not be bound to the port, please check whether the problem is caused by the
following reasons:
 Make sure flexible Q-in-Q whether supports the configured class-map and policy-map
 Make sure ACL includes permit rule if the class-map matches ACL rule
 Make sure the switch exists enough TCAM resource to send the binding
 Priority of flexible Q-in-Q and vlan ingress filtering for processing packets is: flexible Q-in-Q > vlan
ingress filtering