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Example: Configuring a Channelized T1 Interface as a Clear Channel

This example shows how to configure a channelized T1 interface as a clear channel.

Requirements

No special configuration beyond device initialization is required before configuring this feature.

Overview

In this example, you configure the ct1-3/0/0 interface as a clear channel and set T1 options.

Configuration

CLI Quick Configuration

To quickly configure this example, copy the following commands, paste them into a text file, remove any line breaks, change any details necessary to match your network configuration, and then copy and paste the commands into the CLI at the [edit] hierarchy level.

set interfaces ct1-3/0/0 clocking internalset interfaces ct1-3/0/0 description cleart1interface hold-time down 500 up 500 set interfaces ct1-3/0/0 no-partition interface-type t1 set interfaces ct1-3/0/0 per-unit-scheduler set interfaces ct1-3/0/0 t1-options bert-algorithm all-ones-repeating bert-error-rate 5 bert-period 5 buildout 0-132 framing esf line-encoding ami loopback local set interfaces ct1-3/0/0 traceoptions flag all set interfaces ct1-3/0/0 apply-groups test

Step-by-Step Procedure

The following example requires you to navigate various levels in the configuration hierarchy. For instructions on how to do that, see Using the CLI Editor in Configuration Mode .

To configure a channelized T1 interface as a clear channel:

Create the interface.
[edit]user@host# edit interfaces ct1-3/0/0
Configure interface options.
[edit interfaces ct1-3/0/0]user@host# set clocking internaluser@host# set description cleart1 interfaceuser@host# set hold-time down 500 up 500user@host# set no-partition interface-type t1user@host# set per-unit-scheduler
Configure T1 options.
[edit interfaces ct1-3/0/0 ]user@host# set bert-algorithm all-ones-repeatinguser@host# set bert-error-rate 5user@host# set bert-period 5user@host# set buildout 0–132user@host# set framing esfuser@host# set line-encoding amiuser@host# set loopback local
Configure trace options.
[edit interfaces ct1-3/0/0]user@host# set bert-algorithm all-ones-repeatinguser@host# set bert-error-rate 5user@host# set bert-period 5user@host# set buildout 0–132user@host# set framing esfuser@host# set line-encoding amiuser@host# set loopback local
Configure trace options.
[edit interfaces ct1-3/0/0]user@host# set traceoptions flag all

Results

From configuration mode, confirm your configuration by entering the show interfaces ct1-3/0/0 command. If the output does not display the intended configuration, repeat the configuration instructions in this example to correct it.

[edit]user@host# show interfaces ct1-3/0/0apply-groups test; description cleart1interface;traceoptions {flag all;}

per-unit-scheduler;hold-time up 500 down 500;clocking internal;t1-options {loopback local;buildout 0-132;line-encoding ami;framing esf;bert-algorithm all-ones-repeating;bert-error-rate 5;bert-period 5;}no-partition interface-type t1;

If you are done configuring the device, enter commit from configuration mode.

Verification

Confirm that the configuration is working properly.

Verifying Channelized Interfaces

Verifying Channelized Interfaces

Purpose

Verify that your configurations for the channelized interfaces are correct.

Action

From operational mode, enter the show interfaces ct1-3/0/1 command.

user@host>show interfaces ct1-3/0/1

Physical interface: ct1-3/0/1, Enabled, Physical link is Up
  Interface index: 151, SNMP ifIndex: 28
  Link-level type: Controller, Clocking: Internal, Speed: E1, Loopback: None,
  Parent: ct1-3/0/1 Interface index 151
  Framing: G704, Parent: None
  Device flags : Present Running
  Interface flags: Point-To-Point SNMP-Traps Internal: 0x4000
  Link flags : None
  CoS queues : 8 supported, 8 maximum usable queues
  Last flapped : 2006-10-05 21:11:48 PDT (06:45:04 ago)
  DS1   alarms   : None
  DS1   defects  : None
	Line encoding: HDB3

The output shows a summary of information about the physical parent interface—a channelized T1 interface in this example.