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LAN SVC Parameters

The definable parameters for SVC through Configurator are discussed in Configurator Frame Relay SVC Parameters. The SVC frame relay line parameters are discussed below.

All other parameters are configurable through the CLI. See CLI Commands for Defining Frame Relay Line Parameters.

The following parameters are configured through this procedure:

Use the following procedure to configure the above parameters:

  1. To configure the above parameters, select Configure, Protocols, Virtual Circuits, and SVCs.
  2. You will see the SVC Table window:

  3. Locate the virtual port you want to configure and next to it click Modify. You will see the Modify SVC window:

The table below describes the above parameters:

Options

Description

Max. Throughput (Tx)

The maximum frame size in bytes that will be transmitted on the primary frame relay link between the Passport 4400 and the network. The range is from 0 to 4096. The default value is 0, which indicates that the maximum frame size is determined by the PANL configuration.

Min. Throughput (Rx)

Unless overwritten at connect time, this data rate in bits per second (b/s) is used along with Max Rx Throughput to negotiate with the remote end during call setup. The range is from 0 to 2560000 b/s. If left at 0 (the default), the network will determine the data rate

Burst Size (Tx)

The burst size (Bc) in bytes that the network is committed to transmit. The range is from 0 to 2560000 b/s. If left at 0 (the default), the network default will determine the transmit burst size.

Excess Burst Size (Rx)

The uncommitted receive burst size (Be) in bytes. The range is from 0 to 2560000 b/s. If left at 0 (the default), the network default will determine the receive burst size.

Holding Priority

Specifies the priority this SVC maintains once it is established, as well as the likelihood of its being bumped by a new SVC with a higher priority. A value of 1 is the highest priority, and 5 is the lowest.

Data Compression Timeout

This value determines how many seconds the Passport 4400 waits to retry a connection for compression.

Max. Throughput (Rx)

The maximum frame size in bytes that will be accepted on the primary frame relay link between the Passport 4400 and the network. The range is from 0 to 4096. The default value is 0, which indicates that the maximum frame size is determined by the PANL configuration

Max. Throughput (Tx)

Unless overwritten at connect time, this data rate in bits per second (b/s) is used along with Min Tx Throughput to negotiate with the remote end during call setup. The range is from 0 to 2560000 b/s. If left at 0 (the default), the network will determine the data rate.

Burst Size (Rx)

The burst size (Bc) in bytes that the network is committed to receive. The range is from 0 to 2560000 b/s. If left at 0 (the default), the network default will determine the receive burst size.

Discard Priority

Indicates the likelihood of frames on this SVC being discarded during periods of heavy congestion. The options are low, medium, and high-discard-level.

Data Compression Mode

No Compression - disables compression on this IfIndex

Standard - internet FRF.9 standard

Proprietary - Nortel's proprietary compression application

Line Configuration - detects compression use on other lines and matches the compression configuration.

Min. Throughput (Tx)

Unless overwritten at connect time, this data rate in bits per second (b/s) is used along with Max Tx Throughput to negotiate with the remote end during call setup. The range is from 0 to 2560000 b/s. If left at 0 (the default), the network will determine the data rate.

Max. Throughput (Rx)

Unless overwritten at connect time, this data rate in bits per second (b/s) is used along with Min Rx Throughput to negotiate with the remote end during call setup. The range is from 0 to 2560000 b/s. If left at 0 (the default), the network will determine the data rate.

Excess Burst Size (Tx)

The uncommitted transmit burst size (Be) in bytes. The range is from 0 to 2560000 b/s. If left at 0 (the default), the network default will determine the transmit burst size.

Setup Priority

Specifies the priority of an SVC at call-establishment time, and also determines the potential for bumping established SVCs to acquire their bandwidth. A value of 1 is the highest priority, and 5 is the lowest.

Data Compression Retries

This value determines the number of times the Passport 4400 attempts to determine the compression configuration at the other end of the connection. The default for this parameter is 3. If the Passport 4400 cannot determine the compression configuration at the other end of the connection, it will default to no compression.


  1. Configure the applicable parameters then click Save. A "Command Successful" appears.

End of Procedure

End of Topic

Frame Relay Line Parameters

Frame Relay Monitoring


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