Create An Evc; Create An Evc; Evc Definition; Evc Guidelines - ADTRAN Total Access 5000 Deployment Manual

Create an EVC

This subsection details the following information:
• Definition of an EVC
• EVC guidelines
• Steps for creating an EVC
• Steps for configuring an EVC
• EVC example

EVC Definition

The Metro Ethernet Forum (MEF) defines an EVC as "an association of two or more UNIs,"
where a UNI is a standard 10/100/1000 Ethernet interface that is the point of demarcation
between the Customer Equipment (CE) and the Metro Ethernet Network (MEN) of the service
provider. In simple terms, an EVC performs two functions.
• Connects two or more subscriber sites (UNIs) enabling the transfer of Ethernet service
• Prevents data transfer between the subscriber sites that are not part of the same EVC
Multiple EVCs can reside on a common bonding group or Ethernet port. Each EVC typically
has an associated EVC VLAN tag whose VLAN ID is unique among other EVCs in the MEN.
The EVC VLAN tag allows the EVC to be identified and separated from other EVCs.
At a minimum, two items must be set up for the EVC: the MEN interface it will use and the S‐
tag it will use.
NOTE
The S‐tag must match the EVCs configured at the Total Access 5000.

EVC Guidelines

To ensure valid provisioning, enforce the following guidelines when creating an EVC:
• An EVC is applied only if the status is Running (as indicated in the show evc output),
• Two EVCs are considered to be duplicate if they both have the same values for the
• No two EVCs can have the same name
• If the system is managed through a VLAN on a designated Ethernet port, the S‐tag value
65K510DEP08-1A
frames
This capability enables an EVC to provide data privacy and security similar to a Frame
Relay or ATM Permanent Virtual Circuit (PVC).
which indicates that the conditions are valid
following attributes:
– MEN port
– S‐tag
for the EVC cannot equal the management VLAN ID
Section 7, EoF Provisioning - Create an EVC
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