Managing Service Class Templates

Table Of Contents

Managing Service Class Templates

Selecting and Viewing Service Class Templates

Selecting a Card SCT

Selecting a Port SCT

Managing Service Class Templates

Displaying all Registered SCTs on a Switch

Displaying the SCT Assigned to a Port

Displaying the SCT Assigned to a Card

Displaying Port SCT Settings

Displaying Card SCT Settings

Applying a New Version of an SCT to a Card or Port

Deleting an SCT from a Card

Managing Service Class Templates

A Service Class Template (SCT) is a configuration file that defines the traffic characteristics of the various class of service queues in a service module. When applied to a port, SCTs also serve in defining the policing characteristics on that port. There are two types of SCTs: the port SCT and the card SCT. Port SCTs are associated with logical ports on the switch. They define the flow of traffic on a port based on service categories. Card SCTs serve the same purpose as the port SCTs, except that they control the destination slot based cell queues towards the backplane.

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 QE48 (in AXSMs) or QE1210 (in AXSME).

SCT files include the following types of configuration data:

•general link parameters

•COSB parameters

•virtual circuit threshold parameters

•COSB threshold parameters

SCT files are applicable to AXSM, AXSME, AXSM-XG, FRSM12, and PXM1E cards. Each card-type has its own unique port SCT and card SCT. Card SCTs define traffic parameters between a specified card and other like cards in the switch. Port SCTs define traffic parameters on a single line or port. You can apply the same SCT to multiple cards or ports.

Note The PXM1E supports port SCTs only. PXM1E cards do not support card SCTs.

Port SCTs are classified as policing or non-policing. 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. Cisco provides default port SCT files with and without policing capability.

Note The policing parameters in a card SCT are ignored.

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

Each SCT is uniquely identified by its name, which is in the following format: <service_module_name>_<PORT|CARD>.<SCT_ID>.V<major_version>

For example, an AXSME SCT file name might look as follows: AXSME_SCT.CARD.5.V1

Table 10-1 describes the parameters used in the SCT naming convention.

Table 10-1 SCT Naming Conventions

Parameter

Description

service_module_name

The name of the service module on which the SCT will be applied. The possible service modules are AXSM, AXSME, PXM1E, and FRSM12.

PORT|CARD

Specifies whether this is a port SCT or a card SCT.

SCT_ID

A 16-bit number uniquely identifying the SCT.

V<major_version>

A 16-bit number which identifies the major version of the SCT. The major version of the SCT changes whenever a new object is added or deprecated in the SCT MIB.

Selecting and Viewing Service Class Templates

To enable ATM communications, you must assign a card SCT to every AXSM and/or FRSM card in your network, and you must assign a port SCT to every port you use. The SCT files are stored in the F:\SCT\<card type> directory. For example, AXSM SCTs will be stored in the F:\SCT\AXSM directory.

Note PXM1E cards use port SCTs only. Card SCT s are not applicable to PXM1E cards.

Note Users do not have write access to the F:SCT /<card_type> directory. The only way to download SCT files to the F: directory is to download them to your C:/SCT/Temp directory first. For instructions on downloading and installing SCT files to your switch, see the " " section in Appendix A, "Downloading and Installing Software Upgrades."

Before you can assign an SCT to a card or port, you must first download the latest SCT files onto your switch. To find the location of the latest SCT files and verify that you need to update them, see the Release Notes for Cisco MGX 8850 (PXM1E/PXM45), Cisco MGX 8950, and Cisco MGX 8830, Software Version 4.0.00. SCT files can be manually downloaded onto each node in your network through the CLI, or you can also use Cisco WAN Manager (CWM). The preferable way of downloading a SCT is by using CWM. To create additional SCT files or change the configuration of existing SCT files, you need to use (CWM).

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

Note Port SCTs can be changed with connections provisioned on the port. However, the port needs to be administratively downed to effect this change. Hence this is service affecting.

After you create a SCT file with CWM, you must use FTP to transfer that file to the switch before you can use it. For guidelines on transferring files to the switch, see the " Copying Software Files to the Switch" section in Appendix A, "Downloading and Installing Software Upgrades." Be sure to copy SCT files to the C:\SCT\AXSM directory on the e switch.

The following sections describe how to select SCTs for cards and ports.

Selecting a Card SCT

A card SCT defines the queue parameters for the destination slot based cell queues towards the backplane. The same card SCT may be used for multiple cards of the same card type.

Note An SCT must reside in your switch F:/SCT directory before you can select it for a card or port. For instructions on manually downloading and installing SCTs to your switch, see "" in Appendix A, "Downloading and Installing Software Upgrades."

Note The PXM1E supports port SCTs only. PXM1E cards do not support card SCTs.

To select an SCT for a card, use the following procedure.

Step 1 Establish a configuration session using a user name with GROUP1 privileges or higher.

Step 2 Enter the cc command to change to an active AXSM card for which you will select an SCT.

M8850_LA.8.PXM.a > cc 1

(session redirected)

M8850_LA.2.AXSM.a >

Note In a redundant pair, you must specify the SCT on the active card.

Step 3 All ports on the card must be down before you can configure the card SCT. To verify the status of the ports on the card, enter the dspports command.

M8850_LA.2.AXSM.a > dspports
ifNum Line Admin Oper. Guaranteed Maximum SCT Id ifType VPI minVPI maxVPI
State State Rate Rate (D:dflt (VNNI, (EVNNI,EVUNI)
used) VUNI)
----- ---- ----- ----- ---------- --------- ------ ------ ------ ------ ------
1 2.1 Up Down 1412830 1412830 5 NNI 0 0 0
2 2.2 Up Down 1412830 1412830 5 NNI 0 0 0
3 1.1 Up Up 1412830 1412830 5 NNI 0 0 0

Enter the dnport command to bring down any ports that are in the Admin State "Up".

M8850_LA.2.AXSM.a > dnport 2
dnport/dnallports can disrupt traffic on existing connections.
Use this command only to modify partition parameters or change SCT
Do you want to proceed (Yes/No) ? y

Step 4 Enter the cnfcdsct command.

pop20two.1.AXSM.a > cnfcdsct <sctID>

Replace sctID with the number of the SCT that you want to assign to the card. Table 10-2 describes the SCTID options.

Table 10-2 sctID Options

SCT ID

Description

1

Non-policing applications on PNNI-only networks.

2

Policing applications for PNNI-only networks.

3

Non-policing for combined MPLS/PNNI networks.

4

Non-policing applications for combined MPLS/PNNI networks.

Note When an AXSM or FRSM12 card is powered up for the first time, the default card SCT file is used. You must run this command in order to use another SCT file. The default SCT file s 0.

Step 5 To display the SCT assigned to a card, enter the following command:

pop20two.1.AXSM.a > dspcd

The display card report displays a row labeled "Card SCT Id," which identifies the SCT assigned to the card.

M8850_LA.1.AXSM.a > dspcd

Front Card Upper Card Lower Card

---------- ---------- ------------

Card Type: AXSM-4-622 SMFIR-2-622 SMFIR-2-622

State: Active Present Present

Serial Number: SAK0350007N SAK0346003F SBK043902FE

Boot FW Rev: 3.0(0.171)P2 --- ---

SW Rev: 3.0(0.171)P2 --- ---

800-level Rev: 09 13 A1

Orderable Part#: 800-5774-5 800-5383-1 800-5383-1

PCA Part#: 73-4504-2 73-4125-1 73-4125-1

CLEI Code: BAA1BADAAA 0000000000 BAI9ADTAAA

Reset Reason: Power ON Reset

Card Operating Mode: AXSM-A

SCT File Configured Version: 1

SCT File Operational Version: 1

Card SCT Id: 5

Type <CR> to continue, Q<CR> to stop:

Step 6 Enter the upport <if> command to bring up any ports you brought down in Step 3. Replace <if> with the interface number of the downed port.

M8850_LA.1.AXSM.a > upport 1

Step 7 Enter the dspports command to verify that all ports on the card are up.

M8850_LA.1.AXSM.a > dspports
ifNum Line Admin Oper. Guaranteed Maximum SCT Id ifType VPI minVPI maxVPI
State State Rate Rate (D:dflt (VNNI, (EVNNI,EVUNI)
used) VUNI)
----- ---- ----- ----- ---------- --------- ------ ------ ------ ------ ------
1 2.1 Up Up 1412830 1412830 5 NNI 0 0 0
2 2.2 Up Up 1412830 1412830 5 NNI 0 0 0
3 1.1 Up Up 1412830 1412830 5 NNI 0 0 0

Selecting a Port SCT

A port SCT defines queue parameters that apply to egress queues on a port. You can use the same port SCT for multiple ports. To select an SCT for a port, enter the addport command as described in the " Adding ATM Ports" section in Chapter 11, "Provisioning PXM1E Communication Links."

Note An SCT must reside in your switch F:/SCT directory before you can select it for a card or port. For instructions on manually downloading and installing SCTs to your switch, see "" in Appendix A, "Downloading and Installing Software Upgrades."

Managing Service Class Templates

Individual SCT settings cannot be modified using the CLI. If you want to modify specific SCT parameter settings and then save the SCT, you must use Cisco Wan Manager (CWM).

If you want to modify ATM parameters after the SCT is loaded, but you do not want to save the settings as an SCT, you can use the CLI commands cnfabr, cnfcon, or cnfabrtparmdft.

Note Port SCTs can be changed with connections provisioned on the port. However, the port needs to be administratively downed to effect this change. Hence, modifying port SCTs is service affecting.

The following sections describe how to

•Display all Registered SCTs on a switch.

•Display the SCT assigned to a port

•Display the SCT settings in use on a port

•Apply a new SCT version to a port

•Delete SCTs from your network

Displaying all Registered SCTs on a Switch

To display all registered SCTs on a switch and their status, enter the dspscts command at the active PXM switch prompt.

mgx8830a.1.PXM.a > dspscts
-----------------------------------------------------------------------------
Card Type ID Major Minor Checksum Status Description
-----------------------------------------------------------------------------
PXM1E PORT 00002 00001 00000 0xe89d2837 valid cisco :PXM1E_SCT.PORT.2 (upg)
PXM1E PORT 00003 00001 00000 0xe89d2837 valid cisco :PXM1E_SCT.PORT.3 (upg)
PXM1E PORT 00004 00001 00000 0xe89d2837 valid cisco :PXM1E_SCT.PORT.4 (upg)
PXM1E PORT 00005 00001 00000 0xe89d2837 valid cisco :PXM1E_SCT.PORT.5 (upg)
PXM1E PORT 00006 00001 00000 0xec9e2a3a valid cisco :PXM1E_SCT.PORT.6 (upg)
PXM1E PORT 00015 00001 00000 0xe79d2838 valid cisco :PXM1E_SCT.PORT.15 (up)
PXM1E PORT 00332 00001 00000 0x7a16d575 valid custom:PXM1E_SCT.PORT.332 (u)
PXM1E CARD 00002 00001 00000 0xe89d2837 valid cisco :PXM1E_SCT.CARD.2 (upg)
PXM1E CARD 00003 00001 00000 0xe89d2837 valid cisco :PXM1E_SCT.CARD.3 (upg)
PXM1E CARD 00004 00001 00000 0xe89d2837 valid cisco :PXM1E_SCT.CARD.4 (upg)
PXM1E CARD 00011 00001 00000 0xe89d2837 valid cisco :PXM1E_SCT.CARD.11 (up)
PXM1E CARD 00015 00001 00000 0xe79d2838 valid cisco :PXM1E_SCT.CARD.15 (up)

Table 10-3 describes the dspscts command display components.

Table 10-3 dspscts Command Display Components

Object

Description

card type

Type of Service Module to which the SCT is registered. Possible service modules are AXSM, AXSME, AXMS-XG, PXM1E, and FRSM12.

sct type

Describes whether the SCT is a port SCT or a card SCT.

sctid

A 16-bit number uniquely identifying the SCT.

major

A 16-bit number which identifies the major version of the SCT. When an object is deleted or added to an SCT MIB and an upgrade is required, the major version number of the file changes. The major version of a file is always in consecutive order and cannot be deleted.

minor

A 16-bit number which identifies the minor version of the SCT. Each time an SCT file is modified, saved, and downloaded, the minor version number changes. A minor version changed does not require an upgrade or re-configuration of the card and port database. The minor version of a file can be deleted; therefore, the minor version number of a file may not be in consecutive order from the previous minor version of the same file.

checksum

An SCT identification number between 0 and 65535 that matches the checksum embedded in the SCT file. The checksum number for all new SCT files is advertised to the user through the Release Notes for Cisco MGX 8850 (PXM1E/PXM45), Cisco MGX 8950, and Cisco MGX 8830, Software Version 4.0.00.

status

Status of the SCT file on the switch. The status of the SCT would be marked as "failed" if the file does not exist or does not match the major and minor versions.

description

Describes the SCT file.

Displaying the SCT Assigned to a Port

To display the SCT assigned to a port, use the following procedure.

Step 1 Establish a configuration session at any user access level.

Step 2 Enter the following command:

mgx8830a.1.PXM.a > dspports
The dspports report displays a column labeled "Port SCT Id," which identifies the SCT assigned to each port.
mgx8830a.1.PXM.a > dspports

ifNum Line Admin Oper. Guaranteed Maximum Port SCT Id ifType VPI
State State Rate Rate (VNNI only)
----- ---- ----- ----- ---------- --------- ----------------- ------ ----------
1 1.1 Up Up 1412830 1412830 2 NNI 0
2 1.2 Up Up 1412830 1412830 2 NNI 0
3 2.1 Up Up 1412830 1412830 2 NNI 0

Displaying the SCT Assigned to a Card

To display the SCT assigned to a card, use the following procedure.

Step 1 Establish a configuration session at any user access level.

Step 2 Enter the following command:

mgx8830a.1.PXM.a > dspcd

The dspcd report displays a row labeled "Card SCT Id," which identifies the SCT assigned to the card.

mgx8830a.1.PXM.a >
Front Card Upper Card Lower Card
---------- ---------- ------------
Card Type: PXM1E-4-155 SMFIR-2-622 SMFIR-2-622
Reserved Card: PXM1E-4-155 UI Stratum3 UnReserved
State: Active Present Present
Serial Number: SAK03500088 SBK0406002V SAK0346003F
Boot FW Rev: 3.0(26)A1 --- ---
SW Rev: 3.0(26)A1 --- ---
800-level Rev: M6 14 13
Orderable Part#: 800-5774-5 800-5383-1 800-5383-1
PCA Part#: 73-4504-2 73-4125-1 73-4125-1
Reset Reason:On Power up
Card SCT Id: 2

Type <CR> to continue, Q<CR> to stop:

Note The PXM1E supports port SCTs only. PXM1E cards do not support card SCTs.

Displaying Port SCT Settings

To view the port SCT settings, use the following procedure.

Step 1 Establish a CLI management session at any user access level.

Step 2 Enter the following command:

mgx8830a.1.PXM.a > dspportsct <bw|gen|cosb|vcThr|cosThr> <ifNum>

Select one of the options to display one of the five SCT configuration reports, and replace <ifNum> with the number of the port you want to view. Table 10-4 describes the reports for each of these options.

Note The option names are case sensitive. The switch does not recognize the vcthr option. You must enter vcThr.

Table 10-4 Options for dspportsct Command

Option

Description

bw

Displays bandwidth and policing parameters.

gen

Displays general SCT parameters.

cosb

Displays COSB parameters.

vcThr

Displays virtual circuit threshold parameters.

cosThr

Displays COSB threshold parameters.

The sections that follow display the reports for each of the dspportsct command options.

Port SCT General Parameters (dspportsct gen)

The following report appears when you enter the dspportsct gen command:

mgx8850.1.AXSM.a > dspportsct gen 1
+-------------------------------------------------------------------------------------------------+
Service Class Template [2] : General Parameters
+-------------------------------------------------------------------------------------------------+
| SERV-TYPE | COSB_NUM | CAC_TYPE | UPC_ENB | CLP-SELEC | GCRA-1 | GCRA-2 | CI-CNTRL |
+-------------------------------------------------------------------------------------------------+
| CBR.1 | 00000003 | B-CAC |GCRA1-ENB | 000000003 | DISCARD | DISCARD | DISABLED |
| VBR-RT.1 | 00000004 | B-CAC |GCRA 1 & 2| 000000002 | DISCARD | DISCARD | DISABLED |
| VBR-RT.2 | 00000004 | B-CAC |GCRA 1 & 2| 000000001 | DISCARD | DISCARD | DISABLED |
| VBR-RT.3 | 00000004 | B-CAC |GCRA 1 & 2| 000000001 | DISCARD | SET-CLP | DISABLED |
| VBR-nRT.1 | 00000005 | B-CAC |GCRA 1 & 2| 000000002 | DISCARD | DISCARD | DISABLED |
| VBR-nRT.2 | 00000005 | B-CAC |GCRA 1 & 2| 000000001 | DISCARD | DISCARD | DISABLED |
| VBR-nRT.3 | 00000005 | B-CAC |GCRA 1 & 2| 000000001 | DISCARD | SET-CLP | DISABLED |
| UBR.1 | 00000006 | LCN_CAC |GCRA1-ENB | 000000003 | DISCARD | DISCARD | DISABLED |
| UBR.2 | 00000006 | LCN_CAC |GCRA1-ENB | 000000003 | DSCD/SET-CLP | DISCARD | DISABLED |
| ABR | 00000001 | B-CAC |GCRA1-ENB | 000000003 | DISCARD | DISCARD | DISABLED |
+-------------------------------------------------------------------------------------------------+

Table 10-5 describes the SCT General Parameters shown in the example.

Table 10-5 Service Class Template: SCT General Parameters

Parameter

Range

Description

SERV-TYPE

The service type (for example, CBR, VBR, ABR) to which the parameters in this table apply (for example, COSB_NUM, CAC_TYPE, UPC_ENB).

COSB_NUM

1 to 16

Class of Service Buffer Number. The number that identifies one of the sixteen CoS buffers. A CoS buffer is a buffer that services connections with similar QoS requirements.

CAC_TYPE

Connection Admission Control. Used by an ATM switch during setup to determine if a connection requested QoS conforms to the guaranteed QoS standards for ATM connections.

LCN_CAC: Logical Connection Number CAC

B_CAC: Basic - CAC

E_CAC: Enhanced - CAC

UPC_ENB

Usage Parameter Control Enable. Enables or disables GCRA policing functions on the connection.

GCRA1-ENB: Enables GCRA1 only.

GCRA 1 and 2: Enables both GCRA1 and GCRA2.

CLP-SELEC

1 to 4

Cell Loss Priority Select. Specifies whether a bucket will police for CLP (0+1) or CLP (0) in the dual leaky bucket policing action.

1 - Bucket 1: CLP (0+1) - Bucket 2: CLP (0)

2 - Bucket 1: CLP (0+1) - Bucket 2: CLP (0+1)

3 - Bucket 1: CLP (0+1) - Bucket 2: Disabled

4 - Bucket 1: CLP (0+1) with Maximum Frame Size (MFS)

GCRA-1

1 to 3

Generic Cell Rate Algorithm - Bucket 1. In ATM, an algorithm that defines conformance with respect to the traffic contract of the connection. For each cell arrival, the GCRA determines whether the cell conforms to the traffic contract.

Note If UPC-Enable is set to disable, this object is not used.

Choose one of the following options to indicate how cells that fail the first bucket of the policer should be handled:

•1-Discard

•2-Set CLP bit

•3-Set CLP of untagged cells, discard tagged cells.

GCRA-2

1 to 3

Generic Cell Rate Algorithm - Bucket 2. In ATM, an algorithm that defines conformance with respect to the traffic contract of the connection. For each cell arrival, the GCRA determines whether the cell conforms to the traffic contract.

Note If UPC-Enable is set to disable, this object is not used.

Choose one of the following options to indicate how cells that fail the second bucket of the policer should be handled:

1 - Discard

2 - Set CLP bit

3 - Set CLP of untagged cells, discard tagged cells.

CI-CNTRL

1 - Enabled
2 - Disabled

Congestion Indication Control. Indicates whether the EFCI Threshold has been exceeded.

Port SCT COSB Parameters (cosb)

The following report appears when you enter the dspportsct cosb command:

mgx8830a.1.PXM.a > dspportsct cosb
+-----------------------------------------------------------------------------------+
|Service Class Template [02] : COSB Parameters
+-----------------------------------------------------------------------------------+
| COSB | MIN-RATE | MAX-RATE | MIN-PRIORITY | EXCESS-PRIORITY | ERS ENABLE | CLR |
+-----------------------------------------------------------------------------------+
| 0001 | 00000000 | 00000100 | 000 | 002 | ENABLE | 10^-01 |
| 0002 | 00000000 | 00000100 | 000 | 002 | ENABLE | 10^-01 |
| 0003 | 00000000 | 00000100 | 000 | 000 | DISABLE | 10^-05 |
| 0004 | 00000000 | 00000100 | 000 | 001 | DISABLE | 10^-03 |
| 0005 | 00000000 | 00000100 | 000 | 001 | DISABLE | 10^-01 |
| 0006 | 00000000 | 00000100 | 000 | 002 | DISABLE | 10^-01 |
| 0007 | 00000000 | 00000100 | 000 | 002 | DISABLE | 10^-01 |
| 0008 | 00000000 | 00000100 | 000 | 002 | DISABLE | 10^-01 |
| 0009 | 00000000 | 00000100 | 000 | 002 | DISABLE | 10^-01 |
| 0010 | 00000000 | 00000100 | 000 | 002 | DISABLE | 10^-01 |
| 0011 | 00000000 | 00000100 | 000 | 002 | DISABLE | 10^-01 |
| 0012 | 00000000 | 00000100 | 000 | 002 | DISABLE | 10^-01 |
| 0013 | 00000000 | 00000100 | 000 | 002 | DISABLE | 10^-01 |
| 0014 | 00000000 | 00000100 | 000 | 002 | DISABLE | 10^-01 |
| 0015 | 00000000 | 00000100 | 000 | 002 | DISABLE | 10^-01 |
| 0016 | 00000000 | 00000100 | 000 | 002 | DISABLE | 10^-01 |
+-----------------------------------------------------------------------------------+

Table 10-6 describes the SCT COSB parameters shown in the example.

Table 10-6 Service Class Template: SCT COSB Parameters

Label

Range and Units

Description

COSB

N.A.

Class of Service Buffer. A buffer or queue which serves connections with similar QoS requirements.

MIN-RATE

1-1000000

This field is no longer used and is currently always set to its default value (0).

Note This field will be removed in future releases.

MAX-RATE

1-1000000

This field is no longer used and is currently always set to its default value (100).

Note This field will be removed in future releases.

MIN-PRIORITY

0-15

The priority at which this COSB will be serviced to guarantee its minimum and maximum bandwidth requirements.

•0 is highest priority

•15 is lowest priority

EXCESS-PRIORITY

0-15

The priority at which this COSB will be given access to excess bandwidth.

•0 is highest priority

•15 is lowest priority

ERS ENABLE

1 - Enabled
2 - Disabled

Indicates whether ERS¹ is enabled or disabled.

CLR

1-15

Cell Loss Ratio for this COSB. The minimum supported CLR is 10-6 and maximum supported CLR is 10-10

1ERS = Explicit Rate Stamping

Port SCT Virtual Circuit Threshold Parameters (vcThr)

The following report appears when you enter the dspportsct vcThr command:

mgx8830a.1.PXM.a > dspportsct vcThr 1
+------------------------------------+
| SCT - VERSION | FIRMWARE - VERSION |
| 0000000000001 | 000000000000000001 |
+------------------------------------+
+----------------------------------------------------------------------------------------- ----------------+
Service Class Template [5] : VC Threshold Parameters
+----------------------------------------------------------------------------------------- ----------------+
| SERV-TYPE | VC THRESH | PACKET | MAX_CELL | EFCI | CLP_HI | EPD0 | CLP_LO | SCALING | SCALING |
| | TBL IDX | MODE | THRESH | | | | EPD1 | COSB | Log-If |
+----------------------------------------------------------------------------------------- ----------------+
| VSI-SIG | 002 | ENB | 0000005000 | 1000000 | 0800000 | 0600000 | 0800000 | 0000002 | 0000002 |
| CBR.1 | 003 | ENB | 0000002500 | 1000000 | 0800000 | 0600000 | 0800000 | 0000001 | 0000001 |
| VBR-RT.1 | 004 | ENB | 0000005000 | 1000000 | 0800000 | 0600000 | 0800000 | 0000002 | 0000002 |
| VBR-RT.2 | 005 | ENB | 0000005000 | 1000000 | 0800000 | 0600000 | 0800000 | 0000002 | 0000002 |
| VBR-RT.3 | 006 | ENB | 0000005000 | 1000000 | 0800000 | 0600000 | 0800000 | 0000002 | 0000002 |
| VBR-nRT.1 | 007 | ENB | 0000025000 | 1000000 | 0800000 | 0600000 | 0800000 | 0000002 | 0000002 |
| VBR-nRT.2 | 008 | ENB | 0000025000 | 1000000 | 0800000 | 0600000 | 0800000 | 0000002 | 0000002 |
| VBR-nRT.3 | 009 | ENB | 0000025000 | 1000000 | 0800000 | 0600000 | 0800000 | 0000002 | 0000002 |
| UBR.1 | 010 | ENB | 0000050000 | 1000000 | 0800000 | 0600000 | 0800000 | 0000004 | 0000004 |
| UBR.2 | 011 | ENB | 0000050000 | 1000000 | 0800000 | 0600000 | 0800000 | 0000004 | 0000004 |
| ABR | 012 | ENB | 0000050000 | 0200000 | 0800000 | 0600000 | 0800000 | 0000003 | 0000003 |
| TagCOS-0c | 015 | ENB | 0000050000 | 1000000 | 0800000 | 0600000 | 0800000 | 0000004 | 0000004 |
| TagCOS-1c | 016 | ENB | 0000050000 | 1000000 | 0800000 | 0600000 | 0800000 | 0000004 | 0000004 |
| TagCOS-2c | 017 | ENB | 0000050000 | 1000000 | 0800000 | 0600000 | 0800000 | 0000003 | 0000003 |

Type <CR> to continue, Q<CR> to stop:
| TagCOS-3c | 018 | ENB | 0000050000 | 1000000 | 0800000 | 0600000 | 0800000 | 0000002 | 0000002 |
| TagCOS-4c | 019 | ENB | 0000050000 | 1000000 | 0800000 | 0600000 | 0800000 | 0000004 | 0000004 |
| TagCOS-5c | 020 | ENB | 0000050000 | 1000000 | 0800000 | 0600000 | 0800000 | 0000004 | 0000004 |
| TagCOS-6c | 021 | ENB | 0000050000 | 1000000 | 0800000 | 0600000 | 0800000 | 0000004 | 0000004 |
| TagCOS-7c | 022 | ENB | 0000050000 | 1000000 | 0800000 | 0600000 | 0800000 | 0000004 | 0000004 |
+----------------------------------------------------------------------------------------- ----------------+

pop20two.10.PXM.a >

Table 10-7 describes the SCT VC Threshold parameters shown in the example.

Table 10-7 Service Class Template: SCT VC Threshold Parameters

Label

Range and Units

Description

SERV-TYPE

—

The service type (for example, CBR, VBR, ABR) to which the parameters (for example, EFCI, CLP_HI, EPD0) in this table apply.

VC THRESH

—

An index number into the queue engine VC threshold table.

PACKET

1-Enabled
2-Disabled

Enables or disables Packet Discard Mode on the connection.

MAX_CELL

0-5000000 microseconds

The VcMax threshold for CLP (0+1) cells in microseconds.

EFCI

0-1000000

Explicit Forward Congestion Indication. The VC EFCI discard threshold. This value is a percentage of MAX_CELL THRESH. 1000000 is equal to 100%.

CLP_HI

0-1000000

Cells Loss Priority - High. The high hysteresis threshold at which CLP (1) cells will be discarded. The cells will continue to be discarded until the CLP_LO threshold is reached. This value is a percentage of MAX_CELL THRESH. 1000000 is equal to 100%.

EPD0

0-1000000

Early Packet Discard 0. The maximum threshold for CLP (0+1) cells. This value is a percentage of the MAX_CELL THRESH for the connection. 1000000 is equal to 100%.

CLP_LO /EPD1

0-1000000

Cells Loss Priority Low / Early Packet Discard 1. The low hysteresis threshold at which CLP (1) cells will stop being discarded. If packet mode is enable, EPD1 executes.

SCALING

1-4

Class of Service Scaling Class. Indicates which of the four Scaling Class Tables (see Table 10-8, 1-4) to use for a connection. Each table is for a specific service category and has an index of 16 entries. Each index entry contains a percentage by which to scale traffic on a connection to reduce CoS buffer congestion. The hardware generates the index and selects the entries as needed. Each entry is the ratio of the COSB cell count to the COSB maximum threshold. CoS scaling occurs when the CoSB cell count is approximately 50% of the CoSB max threshold.

SCALING

1-4

Logical Port Scaling Class. Indicates which of the four Scaling Class Tables (see Table 10-9, 1-4) to use on a logical port. Each table is for a specific service category and has an index of 16 entries. Each index entry contains a percentage by which to scale traffic on a connection on a logical port to reduce congestion. The hardware generates the index and selects the entries as needed. Each entry is the ratio of the interface cell count to the interface maximum threshold. Interface scaling occurs when the interface cell count is approximately 50% of the interface max threshold.

Table 10-8 Class of Service (CoS) Scaling Table

Index

Scaling Class Table #1 (CBR)

Scaling Class Table #2 (VBR)

Scaling Class Table #3 (ABR)

Scaling Class Table #4 (UBR)

0

100.00%

100.00%

100.00%

100.00%

1

100.00%

100.00%

100.00%

100.00%

2

100.00%

100.00%

100.00%

100.00%

3

100.00%

100.00%

100.00%

100.00%

4

100.00%

100.00%

100.00%

100.00%

5

100.00%

100.00%

100.00%

100.00%

6

100.00%

100.00%

100.00%

67.00%

7

100.00%

100.00%

100.00%

34.00%

8

100.00%

100.00%

50.00%

20.00%

9

100.00%

50.00%

25.00%

12.00%

10

100.00%

25.00%

12.00%

8.00%

11

100.00%

12.00%

6.00%

4.00%

12

100.00%

6.00%

3.00%

2.50%

13

100.00%

3.00%

1.30%

1.40%

14

100.00%

1.30%

0.75%

1.00%

15

100.00%

0.50%

0.50%

0.50%

Table 10-9 Logical Interface Scaling Table

Index

Scaling Class Table #1 (CBR)

Scaling Class Table #2 (VBR)

Scaling Class Table #3 (ABR)

Scaling Class Table #4 (UBR)

0

100.00%

100.00%

100.00%

100.00%

1

100.00%

100.00%

100.00%

100.00%

2

100.00%

100.00%

100.00%

100.00%

3

100.00%

100.00%

100.00%

100.00%

4

100.00%

100.00%

100.00%

100.00%

5

100.00%

100.00%

100.00%

100.00%

6

100.00%

100.00%

100.00%

67.00%

7

100.00%

100.00%

100.00%

34.00%

8

100.00%

100.00%

50.00%

20.00%

9

100.00%

50.00%

25.00%

12.00%

10

100.00%

25.00%

12.00%

8.00%

11

100.00%

12.00%

6.00%

4.00%

12

50.00%

6.00%

3.00%

2.50%

13

25.00%

3.00%

1.30%

1.40%

14

6.00%

1.30%

0.75%

1.00%

15

0.50%

0.50%

0.50%

0.50%

Port SCT COSB Threshold Parameters (cosThr)

The following report appears when you enter the dspportsct cosThr command:

mgx8830a.1.PXM.a > dspportsct cosThr 1
+---------------------------------------------------------------------------------------------+
Service Class Template [00002] : COSB Threshold Parameters
+---------------------------------------------------------------------------------------------+
| COSB |COSB THRESH| MAX_CELL | EFCI | CLP_HI | EPD0 | CLP_LO | RED | RED PROB |
| | TBL IDX | THRESH | | | | EPD1 | | FACTOR |
+---------------------------------------------------------------------------------------------+
| 0001 | 0000002 | 1000000 | 0200000 | 0800000 | 0600000 | 0800000 | 1000000 | 000000015 |
| 0002 | 0000003 | 1000000 | 0200000 | 0800000 | 0600000 | 0800000 | 1000000 | 000000015 |
| 0003 | 0000004 | 5000 | 1000000 | 0800000 | 0600000 | 0800000 | 1000000 | 000000015 |
| 0004 | 0000005 | 10000 | 1000000 | 0800000 | 0600000 | 0800000 | 1000000 | 000000015 |
| 0005 | 0000006 | 50000 | 1000000 | 0800000 | 0600000 | 0800000 | 1000000 | 000000015 |
| 0006 | 0000007 | 100000 | 1000000 | 0800000 | 0600000 | 0800000 | 1000000 | 000000015 |
| 0007 | 0000008 | 1000000 | 1000000 | 0800000 | 0600000 | 0800000 | 1000000 | 000000015 |
| 0008 | 0000009 | 1000000 | 1000000 | 0800000 | 0600000 | 0800000 | 1000000 | 000000015 |
| 0009 | 0000010 | 1000000 | 1000000 | 0800000 | 0600000 | 0800000 | 1000000 | 000000015 |
| 0010 | 0000011 | 1000000 | 1000000 | 0800000 | 0600000 | 0800000 | 1000000 | 000000015 |
| 0011 | 0000012 | 1000000 | 1000000 | 0800000 | 0600000 | 0800000 | 1000000 | 000000015 |
| 0012 | 0000013 | 1000000 | 1000000 | 0800000 | 0600000 | 0800000 | 1000000 | 000000015 |
| 0013 | 0000014 | 1000000 | 1000000 | 0800000 | 0600000 | 0800000 | 1000000 | 000000015 |
| 0014 | 0000015 | 1000000 | 1000000 | 0800000 | 0600000 | 0800000 | 1000000 | 000000015 |
| 0015 | 0000016 | 1000000 | 1000000 | 0800000 | 0600000 | 0800000 | 1000000 | 000000015 |
| 0016 | 0000017 | 1000000 | 1000000 | 0800000 | 0600000 | 0800000 | 1000000 | 000000015 |
+---------------------------------------------------------------------------------------------+

Table 10-10 describes the SCT COSB parameters shown in the example.

Table 10-10 Service Class Template: SCT COSB Threshold Parameters

Label

Range and Units

Description

COSB

—

The service type (for example, CBR, VBR, ABR) to which the parameters (for example, EFCI, CLP_HI, EPD0) in this table apply.

COSB THRESH TBL IDX

—

An index number into Queue Engine COSB threshold table.

MAX_CELL THRESH

0-5000000 microseconds

The maximum threshold, in microseconds, beyond which all CLP (0+1) cells must be dropped.

EFCI

0-1000000

Explicit Forward Congestion Indication. The threshold level for congestion indication for ABR traffic using CI control. This threshold is a percentage of the MAX_CELL THRESH for the connection. 1000000 is equal to 100%.

CLP_HI

0-1000000

Cells Loss Priority High. The maximum number of cells that can be queued in the buffer. CLP (1) cells that exceed this threshold are discarded. This threshold is a percentage of the MAX_CELL THRESH for the connection. 1000000 is equal to 100%.

EPD0

0-1000000

Early Packet Discard 0. The maximum number of cells that can be queued in the buffer in packet mode. Any CLP (0+1) cells that exceed this threshold, will be discarded. This threshold is a percentage of the MAX_CELL THRESH for the connection. 1000000 is equal to 100%.

CLP_LO /EPD1

0-1000000

Cell Loss Priority Low/ Early Packet Discard 1. The threshold at which CLP (0+1) cells that exceed this threshold are discarded. This threshold is a percentage of the MAX_CELL THRESH for the connection. 1000000 is equal to 100%.

RED

0-1000000

Random Early Discard. The threshold at which the COSB Random Early Discard is activated. This threshold is a percentage of the MAX_CELL THRESH for the connection. 1000000 is equal to 100%.

RED PROB FACTOR

0-15

RED Probability Factor. The mantissa value of probability for maximum discard when RED is activated. Determined as 1/2^<value>.

Displaying Card SCT Settings

To view the card SCT settings, use the following procedure.

Step 1 Establish a CLI management session at any user access level.

Step 2 Enter the following command:

mgx8830a.1.PXM.a > dspcdsct <bw|gen|cosb|vcThr|cosThr>

Select one of the options to display one of the five SCT configuration reports. Table 10-11 describes the reports for each of these options. The following section lists sample reports for each of these options.

Note The option names are case sensitive. For example, the switch does not recognize the vcthr option. You must enter vcThr.

Table 10-11 Options for dspcdsct Command

Option

Description

bw

Displays bandwidth and policing parameters.

gen

Displays general SCT parameters.

cosb

Displays COSB parameters.

vcThr

Displays virtual circuit threshold parameters.

cosThr

Displays COSB threshold parameters.

The following sections display the reports for each of the dspcdsct command options.

Card SCT Bandwidth and Policing Parameters (dspcdsct bw)

The following report appears when you enter the dspcdsct bw command:

mgx8830a.1.PXM.a > dspcdsct bw
+-----------------------------------------------------------------------------+
Service Class Template [2] : Bw and Policing Parameters
+-----------------------------------------------------------------------------+
| SERV-TYPE | PCR | SCR | MCR | MBS | CDVT | ICR |
+-----------------------------------------------------------------------------+
| CBR.1 | 00001000 | 00000000 | 00000000 | 00000001 | 00250000 | 00000000 |
| VBR-RT.1 | 00001000 | 01000000 | 00000000 | 00000050 | 00250000 | 00000000 |
| VBR-RT.2 | 00001000 | 01000000 | 00000000 | 00000050 | 00250000 | 00000000 |
| VBR-RT.3 | 00001000 | 01000000 | 00000000 | 00000050 | 00250000 | 00000000 |
| VBR-nRT.1 | 00001000 | 01000000 | 00000000 | 00000050 | 00250000 | 00000000 |
| VBR-nRT.2 | 00001000 | 01000000 | 00000000 | 00000050 | 00250000 | 00000000 |
| VBR-nRT.3 | 00001000 | 01000000 | 00000000 | 00000050 | 00250000 | 00000000 |
| UBR.1 | 00000010 | 00000000 | 00000000 | 00000001 | 00250000 | 00000000 |
| UBR.2 | 00000010 | 00000000 | 00000000 | 00000001 | 00250000 | 00000000 |
| ABR | 00000010 | 00000000 | 01000000 | 00000001 | 00250000 | 00000000 |
+-----------------------------------------------------------------------------+

Card SCT General SCT Parameters (dspcdsct gen)

The following report appears when you enter the dspcdsct gen command:

mgx8830a.1.PXM.a > dspcdsct gen
+-------------------------------------------------------------------------------------------------+
Service Class Template [2] : General Parameters
+-------------------------------------------------------------------------------------------------+
| SERV-TYPE | COSB_NUM | CAC_TYPE | UPC_ENB | CLP-SELEC | GCRA-1 | GCRA-2 | CI-CNTRL |
+-------------------------------------------------------------------------------------------------+
| CBR.1 | 00000003 | B-CAC |GCRA1-ENB | 000000003 | DISCARD | DISCARD | DISABLED |
| VBR-RT.1 | 00000004 | B-CAC |GCRA 1 & 2| 000000002 | DISCARD | DISCARD | DISABLED |
| VBR-RT.2 | 00000004 | B-CAC |GCRA 1 & 2| 000000001 | DISCARD | DISCARD | DISABLED |
| VBR-RT.3 | 00000004 | B-CAC |GCRA 1 & 2| 000000001 | DISCARD | SET-CLP | DISABLED |
| VBR-nRT.1 | 00000005 | B-CAC |GCRA 1 & 2| 000000002 | DISCARD | DISCARD | DISABLED |
| VBR-nRT.2 | 00000005 | B-CAC |GCRA 1 & 2| 000000001 | DISCARD | DISCARD | DISABLED |
| VBR-nRT.3 | 00000005 | B-CAC |GCRA 1 & 2| 000000001 | DISCARD | SET-CLP | DISABLED |
| UBR.1 | 00000006 | LCN_CAC |GCRA1-ENB | 000000003 | DISCARD | DISCARD | DISABLED |
| UBR.2 | 00000006 | LCN_CAC |GCRA1-ENB | 000000003 | DSCD/SET-CLP | DISCARD | DISABLED |
| ABR | 00000001 | B-CAC |GCRA1-ENB | 000000003 | DISCARD | DISCARD | DISABLED |
+-------------------------------------------------------------------------------------------------+

Card SCT COSB Parameters (dspcdsct cosb)

The following report appears when you enter the dspcdsct cosb command:

mgx8830a.1.PXM.a > dspcdsct cosb
+-----------------------------------------------------------------------------------+
|Service Class Template [02] : COSB Parameters
+-----------------------------------------------------------------------------------+
| COSB | MIN-RATE | MAX-RATE | MIN-PRIORITY | EXCESS-PRIORITY | ERS ENABLE | CLR |
+-----------------------------------------------------------------------------------+
| 0001 | 00000000 | 00000100 | 000 | 002 | ENABLE | 10^-01 |
| 0002 | 00000000 | 00000100 | 000 | 002 | ENABLE | 10^-01 |
| 0003 | 00000000 | 00000100 | 000 | 000 | DISABLE | 10^-05 |
| 0004 | 00000000 | 00000100 | 000 | 001 | DISABLE | 10^-03 |
| 0005 | 00000000 | 00000100 | 000 | 001 | DISABLE | 10^-01 |
| 0006 | 00000000 | 00000100 | 000 | 002 | DISABLE | 10^-01 |
| 0007 | 00000000 | 00000100 | 000 | 002 | DISABLE | 10^-01 |
| 0008 | 00000000 | 00000100 | 000 | 002 | DISABLE | 10^-01 |
| 0009 | 00000000 | 00000100 | 000 | 002 | DISABLE | 10^-01 |
| 0010 | 00000000 | 00000100 | 000 | 002 | DISABLE | 10^-01 |
| 0011 | 00000000 | 00000100 | 000 | 002 | DISABLE | 10^-01 |
| 0012 | 00000000 | 00000100 | 000 | 002 | DISABLE | 10^-01 |
| 0013 | 00000000 | 00000100 | 000 | 002 | DISABLE | 10^-01 |
| 0014 | 00000000 | 00000100 | 000 | 002 | DISABLE | 10^-01 |
| 0015 | 00000000 | 00000100 | 000 | 002 | DISABLE | 10^-01 |
| 0016 | 00000000 | 00000100 | 000 | 002 | DISABLE | 10^-01 |
+-----------------------------------------------------------------------------------+

Card SCT Virtual Circuit Threshold Parameters (dspcdsct vcThr)

The following report appears when you enter the dspcdsct vcThr command:

mgx8830a.1.PXM.a > dspcdsct vcThr
+---------------------------------------------------------------------------------------------------------+
Service Class Template [2] : VC Threshold Parameters
+---------------------------------------------------------------------------------------------------------+
| SERV-TYPE | VC THRESH | PACKET | MAX_CELL | EFCI | CLP_HI | EPD0 | CLP_LO | SCALING | SCALING |
| | TBL IDX | MODE | THRESH | | | | EPD1 | COSB | Log-If |
+---------------------------------------------------------------------------------------------------------+
| CBR.1 | 225 | DSB | 0000002500 | 1000000 | 0800000 | 0600000 | 0800000 | 0000001 | 0000001 |
| VBR-RT.1 | 226 | DSB | 0000005000 | 1000000 | 0800000 | 0600000 | 0800000 | 0000002 | 0000002 |
| VBR-RT.2 | 227 | DSB | 0000005000 | 1000000 | 0800000 | 0600000 | 0800000 | 0000002 | 0000002 |
| VBR-RT.3 | 228 | DSB | 0000005000 | 1000000 | 0800000 | 0600000 | 0800000 | 0000002 | 0000002 |
| VBR-nRT.1 | 229 | DSB | 0000025000 | 1000000 | 0800000 | 0600000 | 0800000 | 0000002 | 0000002 |
| VBR-nRT.2 | 230 | DSB | 0000025000 | 1000000 | 0800000 | 0600000 | 0800000 | 0000002 | 0000002 |
| VBR-nRT.3 | 231 | DSB | 0000025000 | 1000000 | 0800000 | 0600000 | 0800000 | 0000002 | 0000002 |
| UBR.1 | 232 | DSB | 0000050000 | 1000000 | 0800000 | 0600000 | 0800000 | 0000004 | 0000004 |
| UBR.2 | 233 | DSB | 0000050000 | 1000000 | 0800000 | 0600000 | 0800000 | 0000004 | 0000004 |
| ABR | 234 | DSB | 0000050000 | 0200000 | 0800000 | 0600000 | 0800000 | 0000003 | 0000003 |
+---------------------------------------------------------------------------------------------------------+

Card SCT COSB Threshold Parameters (dspcdsct cosThr)

The following report appears when you enter the dspcdsct cosThr command:

mgx8830a.1.PXM.a > dspcdsct cosThr
+---------------------------------------------------------------------------------------------+
Service Class Template [00002] : COSB Threshold Parameters
+---------------------------------------------------------------------------------------------+
| COSB |COSB THRESH| MAX_CELL | EFCI | CLP_HI | EPD0 | CLP_LO | RED | RED PROB |
| | TBL IDX | THRESH | | | | EPD1 | | FACTOR |
+---------------------------------------------------------------------------------------------+
| 0001 | 0000114 | 1000000 | 0200000 | 0800000 | 0600000 | 0800000 | 1000000 | 000000015 |
| 0002 | 0000115 | 1000000 | 0200000 | 0800000 | 0600000 | 0800000 | 1000000 | 000000015 |
| 0003 | 0000116 | 5000 | 1000000 | 0800000 | 0600000 | 0800000 | 1000000 | 000000015 |
| 0004 | 0000117 | 10000 | 1000000 | 0800000 | 0600000 | 0800000 | 1000000 | 000000015 |
| 0005 | 0000118 | 50000 | 1000000 | 0800000 | 0600000 | 0800000 | 1000000 | 000000015 |
| 0006 | 0000119 | 100000 | 1000000 | 0800000 | 0600000 | 0800000 | 1000000 | 000000015 |
| 0007 | 0000120 | 1000000 | 1000000 | 0800000 | 0600000 | 0800000 | 1000000 | 000000015 |
| 0008 | 0000121 | 1000000 | 1000000 | 0800000 | 0600000 | 0800000 | 1000000 | 000000015 |
| 0009 | 0000122 | 1000000 | 1000000 | 0800000 | 0600000 | 0800000 | 1000000 | 000000015 |
| 0010 | 0000123 | 1000000 | 1000000 | 0800000 | 0600000 | 0800000 | 1000000 | 000000015 |
| 0011 | 0000124 | 1000000 | 1000000 | 0800000 | 0600000 | 0800000 | 1000000 | 000000015 |
| 0012 | 0000125 | 1000000 | 1000000 | 0800000 | 0600000 | 0800000 | 1000000 | 000000015 |
| 0013 | 0000126 | 1000000 | 1000000 | 0800000 | 0600000 | 0800000 | 1000000 | 000000015 |
| 0014 | 0000127 | 1000000 | 1000000 | 0800000 | 0600000 | 0800000 | 1000000 | 000000015 |
| 0015 | 0000128 | 1000000 | 1000000 | 0800000 | 0600000 | 0800000 | 1000000 | 000000015 |
| 0016 | 0000129 | 1000000 | 1000000 | 0800000 | 0600000 | 0800000 | 1000000 | 000000015 |
+---------------------------------------------------------------------------------------------+
Applying a New Version of an SCT to a Card or Port

The major version number of an SCT file changes when a new parameter is added to an SCT, or when an existing parameter in deleted from an SCT. Only Cisco can warrant a major version change to an SCT file. Major version changes are posted in the Release Notes for Cisco MGX 8850 (PXM1E/PXM45), Cisco MGX 8950, and Cisco MGX 8830, Software Version 4.0.00.

To apply a new major version of an SCT file to a card or port, use the following procedures:

Step 1 Download the new SCT file to your switch, as described in Appendix A, "Downloading and Installing Software Upgrades."

Step 2 Establish a CLI management session at any user access level.

Step 3 Enter the cc command to change to the appropriate card (the card on which you will apply the new SCT).

In the following example, the user will be applying a new SCT to a PXM1E card:

mgx8830a.2.PXM.a > cc 1

(session redirected)

mgx8830a.1.PXM.a >

Step 4 Enter the setsctver <sctver> command. Replace <sctver> with the new SCT major version number.

mgx8830a.1.PXM.a > setsctver 2

Step 5 In order for the newer version of the SCT to take effect, you must reset the card. On a redundant pair, enter the switchredcd command to reset the card. On a standalone card, enter the resetcd command.

Step 6 To verify that the new SCT version has been applied to the appropriate card, enter the dspcd command.

Step 7 To verify that a new port SCT has been associated on the appropriate ports, enter the dspports command.

Deleting an SCT from a Card

To delete an SCT file from the switch, use the following procedure:

Step 1 Establish a CLI management session at any user access level.

Step 2 At the PXM prompt, enter the delsct <card type> <sct type> <sctid> <major ver> command, as shown in the following example:

mgx8830a.1.PXM.a > delsct 3 2 00103 00001

Table 10-12 described the parameters for the delsct command.

Table 10-12 delsct Command Parameters

Option

Description

card type

Identifies the type of card the SCT runs on. The possible card types are as follows:

•1 = AXSM

•2 = AXSME

•3 = PXM (for PXM1E only)

•4 = HSFR

Note Option 3: PXM is the only valid card type for MGX 8830 and MGX 8850 (PXM1E) switches.

type

Determines whether the SCT is a port SCT or a card SCT.

id

Number between 1 and 65335 which identifies an SCT.

major ver

Major version number of a file. This number changes when a new parameter is added to a MIB. Only Cisco can generate a new major version of a file.

checksum

SCT identification number that comes from Cisco and is published in the Release Notes for Cisco MGX 8850 (PXM1E/PXM45), Cisco MGX 8950, and Cisco MGX 8830, Software Version 4.0.00. The checksum number can be from 1 to 132 characters, but cannot included space characters.

description

Describes the SCT file.

Step 3 Enter the dspscts command to ensure that the proper SCT was deleted from your network.

Parameter	Description
service_module_name	The name of the service module on which the SCT will be applied. The possible service modules are AXSM, AXSME, PXM1E, and FRSM12.
PORT\|CARD	Specifies whether this is a port SCT or a card SCT.
SCT_ID	A 16-bit number uniquely identifying the SCT.
V<major_version>	A 16-bit number which identifies the major version of the SCT. The major version of the SCT changes whenever a new object is added or deprecated in the SCT MIB.

SCT ID	Description
1	Non-policing applications on PNNI-only networks.
2	Policing applications for PNNI-only networks.
3	Non-policing for combined MPLS/PNNI networks.
4	Non-policing applications for combined MPLS/PNNI networks.

Object	Description
card type	Type of Service Module to which the SCT is registered. Possible service modules are AXSM, AXSME, AXMS-XG, PXM1E, and FRSM12.
sct type	Describes whether the SCT is a port SCT or a card SCT.
sctid	A 16-bit number uniquely identifying the SCT.
major	A 16-bit number which identifies the major version of the SCT. When an object is deleted or added to an SCT MIB and an upgrade is required, the major version number of the file changes. The major version of a file is always in consecutive order and cannot be deleted.
minor	A 16-bit number which identifies the minor version of the SCT. Each time an SCT file is modified, saved, and downloaded, the minor version number changes. A minor version changed does not require an upgrade or re-configuration of the card and port database. The minor version of a file can be deleted; therefore, the minor version number of a file may not be in consecutive order from the previous minor version of the same file.
checksum	An SCT identification number between 0 and 65535 that matches the checksum embedded in the SCT file. The checksum number for all new SCT files is advertised to the user through the Release Notes for Cisco MGX 8850 (PXM1E/PXM45), Cisco MGX 8950, and Cisco MGX 8830, Software Version 4.0.00.
status	Status of the SCT file on the switch. The status of the SCT would be marked as "failed" if the file does not exist or does not match the major and minor versions.
description	Describes the SCT file.

Option	Description
bw	Displays bandwidth and policing parameters.
gen	Displays general SCT parameters.
cosb	Displays COSB parameters.
vcThr	Displays virtual circuit threshold parameters.
cosThr	Displays COSB threshold parameters.

Parameter	Range	Description
SERV-TYPE		The service type (for example, CBR, VBR, ABR) to which the parameters in this table apply (for example, COSB_NUM, CAC_TYPE, UPC_ENB).
COSB_NUM	1 to 16	Class of Service Buffer Number. The number that identifies one of the sixteen CoS buffers. A CoS buffer is a buffer that services connections with similar QoS requirements.
CAC_TYPE		Connection Admission Control. Used by an ATM switch during setup to determine if a connection requested QoS conforms to the guaranteed QoS standards for ATM connections. LCN_CAC: Logical Connection Number CAC B_CAC: Basic - CAC E_CAC: Enhanced - CAC
UPC_ENB		Usage Parameter Control Enable. Enables or disables GCRA policing functions on the connection. GCRA1-ENB: Enables GCRA1 only. GCRA 1 and 2: Enables both GCRA1 and GCRA2.
CLP-SELEC	1 to 4	Cell Loss Priority Select. Specifies whether a bucket will police for CLP (0+1) or CLP (0) in the dual leaky bucket policing action. 1 - Bucket 1: CLP (0+1) - Bucket 2: CLP (0) 2 - Bucket 1: CLP (0+1) - Bucket 2: CLP (0+1) 3 - Bucket 1: CLP (0+1) - Bucket 2: Disabled 4 - Bucket 1: CLP (0+1) with Maximum Frame Size (MFS)
GCRA-1	1 to 3	Generic Cell Rate Algorithm - Bucket 1. In ATM, an algorithm that defines conformance with respect to the traffic contract of the connection. For each cell arrival, the GCRA determines whether the cell conforms to the traffic contract. Note If UPC-Enable is set to disable, this object is not used. Choose one of the following options to indicate how cells that fail the first bucket of the policer should be handled: •1-Discard •2-Set CLP bit •3-Set CLP of untagged cells, discard tagged cells.
GCRA-2	1 to 3	Generic Cell Rate Algorithm - Bucket 2. In ATM, an algorithm that defines conformance with respect to the traffic contract of the connection. For each cell arrival, the GCRA determines whether the cell conforms to the traffic contract. Note If UPC-Enable is set to disable, this object is not used. Choose one of the following options to indicate how cells that fail the second bucket of the policer should be handled: 1 - Discard 2 - Set CLP bit 3 - Set CLP of untagged cells, discard tagged cells.
CI-CNTRL	1 - Enabled 2 - Disabled	Congestion Indication Control. Indicates whether the EFCI Threshold has been exceeded.

Label	Range and Units	Description
COSB	N.A.	Class of Service Buffer. A buffer or queue which serves connections with similar QoS requirements.
MIN-RATE	1-1000000	This field is no longer used and is currently always set to its default value (0). Note This field will be removed in future releases.
MAX-RATE	1-1000000	This field is no longer used and is currently always set to its default value (100). Note This field will be removed in future releases.
MIN-PRIORITY	0-15	The priority at which this COSB will be serviced to guarantee its minimum and maximum bandwidth requirements. •0 is highest priority •15 is lowest priority
EXCESS-PRIORITY	0-15	The priority at which this COSB will be given access to excess bandwidth. •0 is highest priority •15 is lowest priority
ERS ENABLE	1 - Enabled 2 - Disabled	Indicates whether ERS¹ is enabled or disabled.
CLR	1-15	Cell Loss Ratio for this COSB. The minimum supported CLR is 10-6 and maximum supported CLR is 10-10

Label	Range and Units	Description
SERV-TYPE	—	The service type (for example, CBR, VBR, ABR) to which the parameters (for example, EFCI, CLP_HI, EPD0) in this table apply.
VC THRESH	—	An index number into the queue engine VC threshold table.
PACKET	1-Enabled 2-Disabled	Enables or disables Packet Discard Mode on the connection.
MAX_CELL	0-5000000 microseconds	The VcMax threshold for CLP (0+1) cells in microseconds.
EFCI	0-1000000	Explicit Forward Congestion Indication. The VC EFCI discard threshold. This value is a percentage of MAX_CELL THRESH. 1000000 is equal to 100%.
CLP_HI	0-1000000	Cells Loss Priority - High. The high hysteresis threshold at which CLP (1) cells will be discarded. The cells will continue to be discarded until the CLP_LO threshold is reached. This value is a percentage of MAX_CELL THRESH. 1000000 is equal to 100%.
EPD0	0-1000000	Early Packet Discard 0. The maximum threshold for CLP (0+1) cells. This value is a percentage of the MAX_CELL THRESH for the connection. 1000000 is equal to 100%.
CLP_LO /EPD1	0-1000000	Cells Loss Priority Low / Early Packet Discard 1. The low hysteresis threshold at which CLP (1) cells will stop being discarded. If packet mode is enable, EPD1 executes.
SCALING	1-4	Class of Service Scaling Class. Indicates which of the four Scaling Class Tables (see Table 10-8, 1-4) to use for a connection. Each table is for a specific service category and has an index of 16 entries. Each index entry contains a percentage by which to scale traffic on a connection to reduce CoS buffer congestion. The hardware generates the index and selects the entries as needed. Each entry is the ratio of the COSB cell count to the COSB maximum threshold. CoS scaling occurs when the CoSB cell count is approximately 50% of the CoSB max threshold.
SCALING	1-4	Logical Port Scaling Class. Indicates which of the four Scaling Class Tables (see Table 10-9, 1-4) to use on a logical port. Each table is for a specific service category and has an index of 16 entries. Each index entry contains a percentage by which to scale traffic on a connection on a logical port to reduce congestion. The hardware generates the index and selects the entries as needed. Each entry is the ratio of the interface cell count to the interface maximum threshold. Interface scaling occurs when the interface cell count is approximately 50% of the interface max threshold.

Index	Scaling Class Table #1 (CBR)	Scaling Class Table #2 (VBR)	Scaling Class Table #3 (ABR)	Scaling Class Table #4 (UBR)
0	100.00%	100.00%	100.00%	100.00%
1	100.00%	100.00%	100.00%	100.00%
2	100.00%	100.00%	100.00%	100.00%
3	100.00%	100.00%	100.00%	100.00%
4	100.00%	100.00%	100.00%	100.00%
5	100.00%	100.00%	100.00%	100.00%
6	100.00%	100.00%	100.00%	67.00%
7	100.00%	100.00%	100.00%	34.00%
8	100.00%	100.00%	50.00%	20.00%
9	100.00%	50.00%	25.00%	12.00%
10	100.00%	25.00%	12.00%	8.00%
11	100.00%	12.00%	6.00%	4.00%
12	100.00%	6.00%	3.00%	2.50%
13	100.00%	3.00%	1.30%	1.40%
14	100.00%	1.30%	0.75%	1.00%
15	100.00%	0.50%	0.50%	0.50%

Label	Range and Units	Description
COSB	—	The service type (for example, CBR, VBR, ABR) to which the parameters (for example, EFCI, CLP_HI, EPD0) in this table apply.
COSB THRESH TBL IDX	—	An index number into Queue Engine COSB threshold table.
MAX_CELL THRESH	0-5000000 microseconds	The maximum threshold, in microseconds, beyond which all CLP (0+1) cells must be dropped.
EFCI	0-1000000	Explicit Forward Congestion Indication. The threshold level for congestion indication for ABR traffic using CI control. This threshold is a percentage of the MAX_CELL THRESH for the connection. 1000000 is equal to 100%.
CLP_HI	0-1000000	Cells Loss Priority High. The maximum number of cells that can be queued in the buffer. CLP (1) cells that exceed this threshold are discarded. This threshold is a percentage of the MAX_CELL THRESH for the connection. 1000000 is equal to 100%.
EPD0	0-1000000	Early Packet Discard 0. The maximum number of cells that can be queued in the buffer in packet mode. Any CLP (0+1) cells that exceed this threshold, will be discarded. This threshold is a percentage of the MAX_CELL THRESH for the connection. 1000000 is equal to 100%.
CLP_LO /EPD1	0-1000000	Cell Loss Priority Low/ Early Packet Discard 1. The threshold at which CLP (0+1) cells that exceed this threshold are discarded. This threshold is a percentage of the MAX_CELL THRESH for the connection. 1000000 is equal to 100%.
RED	0-1000000	Random Early Discard. The threshold at which the COSB Random Early Discard is activated. This threshold is a percentage of the MAX_CELL THRESH for the connection. 1000000 is equal to 100%.
RED PROB FACTOR	0-15	RED Probability Factor. The mantissa value of probability for maximum discard when RED is activated. Determined as 1/2^<value>.