Check the Configuration of an ATM1 Interface

Purpose

The JUNOS software assumes an ATM1 interface configuration if you include the maximum-vcs statement without the pic-type statement at the [edit interfaces at-fpc/pic/port atm-options] hierarchy level,

Action

To check the configuration of an ATM1 interface, use the following JUNOS CLI operational mode command:

user@host> show configuration interfaces at-fpc/pic/port

Sample Output 1

user@host> show configuration interfaces at-0/1/0 

atm-options {

    vpi 1 {

        maximum-vcs 1024;

    }

}

unit 100 {

    vci 1.100;

    family inet {

        address 25.25.25.2/30;

    }

}

Sample Output 2

user@host> show configuration interfaces at-1/0/0

atm-options {

    pic-type atm1;

    vpi 0 maximum-vcs 256;

    vpi 1 maximum-vcs 512;

}

What It Means

The sample output shows the correct configuration of an ATM1 interface. Sample output 1 shows the maximum-vcs statement configured on an ATM interface. Because the pic-type statement is not included in the configuration, this interface is assumed to be an ATM1 interface. Use the show chassis hardware command to verify that the interface is an ATM1. Otherwise this could be the incorrect configuration of an ATM2 IQ interface. Sample output 2 shows the correct configuration of an ATM1 interface with the pic-type statement and the maximum-vcs statement.

See the JUNOS Network Interfaces and Class of Service Configuration Guide, for more information on configuring ATM1 interfaces.