Cisco Systems OL-10729-01 ERS with 21 VLAN Translation, A-15, Configuration Configlets, Up-E

Appendix A Sample Configlets

ERS with 2:1 VLAN Translation

ERS with 2:1 VLAN Translation

Configuration

Configlets

•Service: L2VPN/Metro Ethernet

•Feature: ERS with VLAN 2:1 translation

•Device configuration:

–The N-PE is a CISCO7600 with IOS 12.2(18)SXF, Sup720-3BXL

–The U-PE is a CISCO3750ME with IOS 12.2(25)EY1. VLAN translation on the NNI port (uplink).

–L2VPN point-to-point.

–C3750ME (FA1/0/5 – GI1/1/1) <–> C7600 (FA8/34)

UP-E		N-PE
vlan 567		vlan 779
exit		exit
!		!
interface FastEthernet1/0/5		interface FastEthernet8/34
no cdp enable		switchport trunk allowed vlan 1,778-779
no keepalive		!
no ip address		interface Vlan779
switchport		no ip address
switchport access vlan 567		description L2VPN ERS 2 to 1 vlan
switchport mode dot1q-tunnel		translation
switchport trunk allowed vlan none		xconnect 99.99.8.99 89033 encapsulation
switchport nonegotiate		mpls
spanning-tree bpdufilter enable		no shutdown
mac access-group ISC-FastEthernet1/0/5 in
!
interface GigabitEthernet1/1/1
no ip address
switchport trunk allowed vlan 1,123,567
switchport vlan mapping dot1q-tunnel 567
234	779
!
mac access-list extended
ISC-FastEthernet1/0/5
deny any host 0100.0ccc.cccc
deny any host 0100.0ccc.cccd
deny any host 0100.0ccd.cdd0
deny any host 0180.c200.0000
permit any any

Comments	•	VLAN translation is only for L2VPN (point-to-point) ERS.
	• In this case, the 2:1 VLAN translation occurs on the U-PE, a 3750. It is provisioned on the NNI
		(uplink) port.
	•	The customer VLAN 123 and the provider VLAN 234 (as part of Q inQ) are translated to a new
		provider VLAN 779.

	Cisco IP Solution Center Metro Ethernet and L2VPN User Guide, 4.2
OL-10729-01		A-15