CANOGA PERKINS 9145EMP NID Software Version 3.1 - Manual (Page 189)

VLAN Multiplexing 9145EMP NID Software User’s Manual
VLAN Multiplexing
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12.0 Introduction
The 9145EMP supports VLAN multiplexing of C-VLANs into S-VLANs. This feature allows cus-
tomer frames to be multiplexed into S-VLANs through the use of a C-VLAN/S-VLAN Map.
The C-VLAN/S-VLAN Map provides a means for ingress service frames at the User Ports to be
uniquely assigned to S-VLAN and forwarded out the Network Ports. Similarly, ingress service
frames at the Network Ports are forwarded to a unique User Port based on the S-Tag of the
frame.
12.1 VLAN Multiplexing
This section briefly describes the functionality of the VLAN Multiplexing feature, and the entities
required for its configuration.
12.1.1 VLAN Multiplexing Records
The VLAN Multiplexing record is the entity that models the transport functionality of the system.
There are a maximum of 512 VLAN multiplexing records in the system.
A VLAN multiplexing record links a User port and a set of C-VLANs on that particular port, with a
unique S-VLAN on the network side. The record is uniquely identified in the system by the S-
VLAN ID.
Service Multiplexing records and All-to-One Bundling records differ in the following ways.
• Service Multiplexing allows frames belonging to selected C-VLANs to be multiplexed in a
single S-VLAN on the network side. More than one service multiplexing record can be
configured on the same user port.
• An All-to-One Bundling multiplexing record indicates that all frames received on the spec-
ified user port, if they are C-VLAN tagged or untagged, are multiplexed in a single S-
VLAN tag.
The following restrictions are enforced for the consistency of VLAN multiplexing records:
Chapter 12
VLAN Multiplexing