Cisco RPM-XF Specifications download pdf (Page 63)

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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

SCTs simplify configuration by providing default values that will work for most connections. This

reduces the number of parameters that need to be defined when setting up connections. Without SCTs,

you need to perform a lot of detailed manual configuration on each and every port on the switch. This is

time consuming and error prone.

Typically, traffic profiles are defined by a handful of traffic engineering experts who understand the

service level agreements and expected traffic pattern on the ports. These experts define the SCTs for each

port in the system. Once the SCT is applied on the port, you do not need to (re)configure the switch. The

parameters in the SCTs define generic thresholds and priorities of queues that can be understood without

having to go through the programming details of Queuing engines, such as QE1210.

When configuring a service module card SCT, your goal should be to select the card SCT that will

support the majority of planned connections on that card. When configuring a service module port SCT,

your goal should be to select the port SCT that supports the majority of planned connections on that port.

Each service module contains default SCT parameters that you can use for communications. Cisco also

supplies additional SCTs that you can use to better support communications. If none of the Cisco

supplied SCTs meet your needs, you can use Cisco WAN Manager (CWM) to create your own custom

SCTs. You can not create or modify SCT files using the CLI.

For more information on:

• Managing card and port SCTs on AXSM cards through the command line, refer to “Managing Card

SCTs” section on page 4-4 or “Managing Port SCTs” section on page 4-9.

• Configuring SCTs and SCT parameters, refer to the Cisco WAN Manager User’s Guide, Release

15.1.

• Downloading, registering, and managing SCTs on the PXM card, refer to the Cisco MGX 8800/8900

Series Configuration Guide, Release 5.2

AXSM Service Class Templates

SCT files are applicable to the AXSM cards. Each SCT is classified by card or service module type, by

whether it is a card or port SCT, and as either policing or non-policing. Although card SCTs may contain

policing parameters, these parameters are ignored.

Typically, policing SCTs are used on UNI ports at the edge of the ATM network and control traffic

entering the network. Non-policing SCTs are typically on trunk ports that interconnect switches within

the network.

Note If traffic is properly controlled at the edges of an ATM network, there should be no need for policing

within the network.

Table 2-2 lists the SCTs supplied by Cisco for AXSM cards. For the very latest information on Cisco

SCTs, refer to the Release Notes for Cisco MGX 8850 (PXM1E/PXM45), Cisco MGX 8950, and Cisco

MGX 8830 Switches, Release 5.2.00

Note For information on managing card and port SCTs on AXSM cards, refer to “Managing Card SCTs”

section on page 4-4 or “Managing Port SCTs” section on page 4-9.

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