Specifications

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Cisco ATM Services (AXSM) Configuration Guide and Command Reference for MGX Switches
Release 5.2, Part Number OL-6484-01 Rev. C0, September 2005
Chapter 2 Preparing AXSM Lines for Communication
General AXSM Provisioning Procedures
General AXSM Provisioning Procedures
The following sections describe general provisioning procedures for AXSM cards:
• Selecting and Viewing Service Class Templates
• Setting Up Lines
• Establishing Redundancy between Two Lines with APS
• Channelizing SONET, SDH, and DS3 (T3) Lines into Paths
Selecting and Viewing Service Class Templates
The sections describe SCTs, and how to use them to configure AXSM cards:
• Overview of Service Class Templates
• AXSM Service Class Templates
See additional sections of working with SCTs in “Managing Card SCTs” section on page 4-4 and
“Managing Port SCTs” section on page 4-9.
Overview of Service Class Templates
A Service Class Template (SCT) is a file that contains default configuration data for switch connections
and for configuring the hardware to support connections. When you configure a connection, or when an
SVC is established, the switch analyzes the connection setup request data, any local configuration data,
and the SCTs that apply to the port and to the card.
For example, if an SPVC configuration does not include required data for the requested class of service
(COS), default values from the SCT files are used. If an SVC request or SPVC configuration specifies
configuration values that are different from the SCT values, the specified values override the default SCT
values.
There are two types of SCTs:
• Card SCTs
• Port SCTs
Card SCTs define configuration parameters for the hardware that transfers data between the a service
module and the switch back plane. You can assign one card SCT to each service module. Port SCTs
define configuration parameters for the hardware that transfers data between a service module and a
communication line to another switch or CPE. Port SCTs are assigned when a port is configured, and
you can use different port SCTs on the same card, provided that the port SCT you select is designed for
that card type.
Some SCT parameters control the service module hardware, and others are used as default values for
connection parameters. A complete discussion of the SCT parameters is beyond the scope of this book.
SCT parameters are used to do the following:
• Connection policing.
• Connection admission control (CAC).
• Provide default connection parameters.
• Provide connection threshold parameters.
• Set up class of service buffer (COSB) parameters and threshold values.