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Example: Configuring a Channelized E1 Interface as a Clear Channel

This example shows how to configure a channelized E1 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 ce1-3/0/0 interface as a clear channel and set E1 options.

Additionally, this example shows how to flag all trace option messages and how to apply configuration settings to the test group.

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 ce1-3/0/0 clocking internaldescription cleart1interface hold-time down 500 up 500 set interfaces ce1-3/0/0 no-partition interface-type e1 set interfaces ce1-3/0/0 per-unit-scheduler set interfaces ce1-3/0/0 e1-options bert-algorithm all-ones-repeating bert-error-rate 5 bert-period 5 framing g704 loopback local set interfaces ce1-3/0/0 traceoptions flag all set interfaces ce1-3/0/0 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 E1 interface as a clear channel:

Create the interface.
[edit]user@host# edit interfaces ce1-3/0/0
Configure interface options.
[edit interfaces ce1-3/0/0]user@host# set clock internaluser@host# set description clear e1 interfaceuser@host# set hold-time down 500 up 500user@host# set no-partition interface-type e1user@host# set per-unit-scheduler
Configure E1 options.
[edit interfaces ce1-3/0/0]user@host# set bert-algorithm all-ones-repeatinguser@host# set bert-error-rate 5user@host# set bert-period 5user@host# set framing g704user@host# set loopback local
Configure trace options.
[edit interfaces ce1-3/0/0]user@host# set traceoptions flag all
Configure advanced options.
[edit interfaces ce1-3/0/0]user@host# set interfaces apply-groups test

Results

From configuration mode, confirm your configuration by entering the show interfaces ce1-3/0/0 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 ce1-3/0/0apply-groups test;description cleare1interface;traceoptions {flag all;}per-unit-scheduler;clocking internal;e1-options {loopback local;framing g704;bert-algorithm all-ones-repeating;bert-error-rate 5;bert-period 5;}no-partition interface-type e1;

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

Verification

Confirm that the configuration is working properly.

Verifying Clear-Channel Interfaces

Verifying Clear-Channel Interfaces

Purpose

Verify that your configurations for the clear-channel interfaces are correct.

Action

From operational mode, enter the show interfaces e1-3/0/1 command.

user@host> show interfaces e1-3/0/1

Physical interface: e1-3/0/1, Enabled, Physical link is Up
  Interface index: 212, SNMP ifIndex: 237
  Link-level type: PPP, MTU: 1504, Speed: E1, Loopback: None, FCS: 16,
  Parent: ce1-3/0/1 Interface index 151
  Device flags   : Present Running
  Interface flags: Point-To-Point SNMP-Traps Internal: 0x4000
  Link flags     : Keepalives
  Keepalive settings: Interval 10 seconds, Up-count 1, Down-count 3
  Keepalive: Input: 1066 (00:00:02 ago), Output: 1066 (00:00:02 ago)
  LCP state: Opened
  NCP state: inet: Opened, inet6: Opened, iso: Not-configured, mpls:
  Not-configured
  CHAP state: Closed
  CoS queues     : 8 supported, 8 maximum usable queues
  Last flapped   : 2006-10-06 01:01:36 PDT (02:57:27 ago)
  Input rate     : 88 bps (0 pps)
  Output rate    : 58144 bps (157 pps)
  DS1   alarms   : None
  DS1   defects  : None

  Logical interface e1-3/0/1.0 (Index 66) (SNMP ifIndex 238)
    Flags: Point-To-Point SNMP-Traps 0x4000 Encapsulation: PPP
    Bandwidth: 1984kbps
    Protocol inet, MTU: 1500
      Flags: None
      Addresses, Flags: Is-Preferred Is-Primary
        Destination: 47.47.47.0/30, Local: 47.47.47.2, Broadcast: 47.47.47.3
    Protocol inet6, MTU: 1500
      Flags: None
      Addresses, Flags: Is-Preferred Is-Primary
        Destination: 8b8b:8b01::/64, Local: 8b8b:8b01::2
      Addresses, Flags: Is-Preferred
        Destination: fe80::/64, Local: fe80::205:85ff:fec5:d3d0

The output shows a summary of interface information. Although the parent interface is ce1-3/0/1, the physical and logical clear-channel interfaces are named e1-3/0/1 and e1-3/0/1.0.