Cisco Systems OL-7396-01 Manual De Usuario

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ATM Switch Router Software Configuration Guide 
OL-7396-01
Chapter 9
Configuring Resource Management
Configuring Physical and Logical Interface Parameters
Configuring Physical and Logical Interface Parameters
The following sections describe interface configuration resource management tasks for both physical 
and logical interface types:
Configuring the Interface Link Distance
Specifying the physical link distance for the next ATM hop in the outbound direction allows you to 
increase the propagation delay. Propagation delay is used in determining the connection admission 
control (CAC) maximum cell transfer delay (CTD) provided on the output by a switch interface, which 
can affect the switched virtual channel (SVC) connection requests accepted.
Note
For a detailed description of the CAC algorithm pseudo-code on the ATM switch router, refer to the 
Guide to ATM Technology.
To configure the interface link distance, perform the following tasks, beginning in global configuration 
mode:
Note
The atm link-distance command affects subsequent connections but not connections that are already 
established.
Example
The following example shows how to configure the outbound link distance to 150 kilometers:
Switch(config-if)# atm link-distance 150
Displaying the Interface Link Distance Configuration
To display the interface link distance configuration, use the following EXEC command:
Command
Purpose
Step 1
Switch(config)# interface atm 
card/subcard/port[.vpt#]
Switch(config-if)# 
Selects the interface to be configured.
Step 2
Switch(config-if)# atm link-distance kilometers
Configures the interface link distance for the 
interface.