Ers (evpl) (2:1 vlan translation) – Cisco OL-21636-01 User Manual

Page 286

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A-8

Cisco IP Solution Center L2VPN and Carrier Ethernet User Guide, 6.0

OL-21636-01

Appendix A Sample Configlets

ERS (EVPL) (2:1 VLAN Translation)

ERS (EVPL) (2:1 VLAN Translation)

Configuration

Service: L2VPN/Metro Ethernet.

Feature: ERS (EVPL) with VLAN 2:1 translation.Device configuration:

The N-PE is a Cisco 7600 with IOS 12.2(18)SXF, Sup720-3BXL

Interface(s): FA8/34.

The U-PE is a Cisco 3750ME with IOS 12.2(25)EY1. VLAN translation on the NNI port
(uplink).

Interface(s): FA1/0/5 – GI1/1/1.

L2VPN point-to-point.

Configlets

Comments

VLAN translation is only for L2VPN (point-to-point) ERS (EVPL).

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 -in-Q) are translated to a new
provider VLAN 779.

U-PE

N-PE

vlan 567

exit

!

interface FastEthernet1/0/5

no cdp enable

no keepalive

no ip address

switchport

switchport access vlan 567

switchport mode dot1q-tunnel

switchport trunk allowed vlan none

switchport nonegotiate

spanning-tree bpdufilter enable

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

vlan 779

exit

!

interface FastEthernet8/34

switchport trunk allowed vlan 1,778-779

!

interface Vlan779

no ip address

description L2VPN ERS 2 to 1 vlan

translation

xconnect 99.99.8.99 89033 encapsulation

mpls

no shutdown

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