Create An Evc Map On The Total Access 5000; Create An Evc Map On The Total Access 5000; Map And Dscp Definition; Map Guidelines - ADTRAN Total Access 5000 Deployment Manual

Create an EVC Map on the Total Access 5000

This section details the following information:
• Definition of a map and DSCP
• Guidelines for creating a map
• Steps for creating a map
• EVC map example

Map and DSCP Definition

Define the association of customer traffic on a UNI port with an EVC by defining an entity
called a map. Each map is associated with a single customer and specifies the Class of Service
(CoS) behavior of the traffic from the customer.
The EVC map sets up the mapping of customer Differentiated Services Code Point (DSCP)
value (in the IP packet) to MEN priority bit value (in the Ethernet frame). For example, the
DSCP value 60 of traffic coming from the customer could be mapped to service provider
VLAN priority level 4.
DSCP is the marker used to display as a header field in the packet classification of IP packets.
The DSCP serves the purpose of initiating network routers to employ differentiated grades of
service to several packet streams.

Map Guidelines

To ensure valid provisioning, observe the following guidelines when creating a map:
• A map is applied only if the EVC map's status is Running (as indicated in the show evc‐
• Two maps are considered to be duplicate if they both have the same values for the
• No two maps can have the same name
• When multiple maps are applied to a common EVC, each map must contain the same
NOTE
If the user does not specify the DSCP match criteria or MEN priority value for
the map and chooses to use the default values, the map is still required to
complete the creation of the BSM service.
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Section 5, BSM Provisioning - Create an EVC Map on the Total Access 5000
map output), which indicates that the conditions are valid
following attributes:
– UNI port/PPP‐group
– Differentiated Services Code Point (DSCP) value
PPP‐group. Multiple PPP‐groups cannot be mapped to a common EVC
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