Mef Evc Command Set - ADTRAN AOS Version R10.1.0 Command Reference Manual

Command Reference Guide
MEF EVC C
OMMAND
A Metro Ethernet Forum (MEF) Ethernet virtual connection (EVC) connects two endpoints (for example,
the Ethernet in the first mile (EFM) group and the MEF Ethernet interface) and passes Ethernet service
frames through these endpoints. The EVCs prevent data transfer between subscriber sites that are not part
of the same EVC, thus providing data privacy and security similar to a Frame Relay or an asynchronous
transfer mode (ATM) permanent virtual circuit (PVC). EVCs are configured to be part of a bonding group
(EFM group).
Each EVC has an associated subscriber tag (s-tag). This tag is the service provider VLAN ID and the outer
tag in Q-in-Q VLAN tagging, whose VLAN ID is unique among other EVCs in the Metro Ethernet
network (MEN). This unique s-tag allows the EVC to be identified and separated from other EVCs within
the MEN. The s-tag exists only within the MEN and is not transmitted from or received at the customer
edge of the network. In addition, the customer-side VLAN ID can be preserved on EVC traffic across the
MEN if necessary. The customer equipment (CE) VLAN ID is the VLAN ID of the MEF Ethernet
subinterface on the AOS unit. This inner tag in Q-in-Q VLAN tagging can be preserved or stripped by the
EFM module on both inbound and outbound frames.
The configurable attributes of the EVC include the EVC name, the MEN port to which the EVC is
connected, whether the CE VLAN ID is preserved in the EVC traffic, and whether the EVC is enabled.
Once these parameters are configured for the EVC, the EVC must be associated with a MEN port for
traffic to flow.
For more information about EVCs and their function in MENs, refer to the configuration guide
Configuring EFM NIM2s and the MEF Ethernet Interface in AOS, available online at
https://supportforums.adtran.com.
EVCs are created and configured using the mef evc <name> command from the Global Configuration
mode as follows:
>enable
#configure terminal
(config)#mef evc DATA
(config-evc-DATA)#
The following commands are common to multiple command sets and are covered in a centralized section
of this guide. For more information, refer to the sections listed below:
cross-connect on page 67
shutdown on page 82
All other commands for this command set are described in this section in alphabetical order.
connect men-port efm-group <group id> on page 3214
preserve-ce-vlan on page 3215
s-tag <vlan id> on page 3216
60000CRG0-35E
S
ET
Copyright © 2012 ADTRAN, Inc.

MEF EVC Command Set

3213