Cisco Systems A9014CFD manual Configuration Examples

Chapter 8 Configuring Ethernet Virtual Connections

Configuring Other Features on EFPs

Figure 8-2		802.1Q Tunnel Ports in a Service-Provider Network
	Customer A
VLANs 1 to 100
				Customer A
			802802.1Q.1Qt trunkrunkportport	VLANs 1 to 100
				Se rvice
				provider
802.1Q t runk port			Port with EFP	802.1Q t runk port
				802.1Q t runk port
802.1Q t runk port			VLAN 30
				Port with EFP
Port with Ethernet				VLAN 30
	Flow Point (EFP)		Trunk	Trunk
		VLAN 30
			ports	ports
			Port with EFP	Port with EFP
			VLAN 40	VLAN 40
802.1Q t runk port				802802.1Q.1Qt trunkport

Customer B	Trunk	Customer B
VLANs 1 to 200	Asymmet ric link	VLANs 1 to 200

208640

You can use EFPs to configure 802.1Q tunneling in two ways:

Restrictions

•Inner VLAN range filtering for QinQ traffic from Network-to-Network Interface (NNI) to User-to-Network Interface (UNI) is not enforced if the range is more than 1000.

•Egress VLAN range filtering for traffic coming from NNI to UNI, is not supported on UNI.

•Single-tagged EVC with VLAN range is not supported on the port channel.

Configuration Examples

In this example, for Customer A, interface Gigabit Ethernet 0/1 is the customer-facing port, and Gigabit Ethernet 0/2 is a trunk port facing the service provider network. For Customer B, Gigabit Ethernet 0/3 is the customer-facing port, and Gigabit Ethernet 0/4 is the trunk port facing the service provider network.

Customer A

Router (config)# interface gigabitethernet0/1

Router (config-if)#service instance 1 Ethernet

Router (config-if-srv)#encapsulation dot1q 1-100

Router (config-if-srv)# bridge-domain 500

Router (config)# interface gigabitethernet0/2

Router (config-if)#service instance 2 Ethernet

Router (config-if-srv)#encapsulation dot1q 30 second-dot1q 1-100

Router (config-if-srv)#rewrite ingress pop 1 symmetric

Router (config-if-srv)# bridge-domain 500

	Cisco ASR 901 Series Aggregation Services Router Software Configuration Guide
8-22	OL-23826-09