Gvrp Troubleshooting; Dot1Q-Tunnel Configuration; Introduction To Dot1Q-Tunnel - Planet Networking & Communication WGSW-50040 Configuration Manual

Switch(Config-Vlan100)#exit
Switch(config)#interface Ethernet 1/11
Switch(Config-If-Ethernet1/11)#switchport mode trunk
Switch(Config-If-Ethernet1/11)# gvrp
Switch(Config-If-Ethernet1/11)#exit
Switch B:
Switch(config)# bridge-ext gvrp
Switch(config)#interface ethernet 1/10
Switch(Config-If-Ethernet1/10)#switchport mode trunk
Switch(Config-If-Ethernet1/10)# gvrp
Switch(Config-If-Ethernet1/10)#exit
Switch(config)#interface ethernet 1/11
Switch(Config-If-Ethernet1/11)#switchport mode trunk
Switch(Config-If-Ethernet1/11)# gvrp
Switch(Config-If-Ethernet1/11)#exit
Switch C:
Switch(config)# gvrp
Switch(config)#vlan 100
Switch(Config-Vlan100)#switchport interface ethernet 1/2-6
Switch(Config-Vlan100)#exit
Switch(config)#interface ethernet 1/11
Switch(Config-If-Ethernet1/11)#switchport mode trunk
Switch(Config-If-Ethernet1/11)# gvrp
Switch(Config-If-Ethernet1/11)#exit

10.2.4 GVRP Troubleshooting

The GARP counter setting in for Trunk ports in both ends of Trunk link must be the same, otherwise GVRP will
not work properly. It is recommended to avoid enabling GVRP and RSTP at the same time in switch. If GVRP
is to be enabled, RSTP function for the ports must be disabled first.

10.3 Dot1q-tunnel Configuration

10.3.1 Introduction to Dot1q-tunnel

Dot1q-tunnel is also called QinQ (802.1Q-in-802.1Q), which is an expansion of 802.1Q. Its dominating idea is
encapsulating the customer VLAN tag (CVLAN tag) to the service provider VLAN tag (SPVLAN tag). Carrying
the two VLAN tags the packet is transmitted through the backbone network of the ISP internet, so to provide a
simple layer-2 tunnel for the users. It is simple and easy to manage, applicable only by static configuration,
and especially adaptive to small office network or small scale metropolitan area network using layer-3 switch
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