Cisco ASR 901 User Manual

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Cisco ASR 901 Aggregation Services Router Command Reference Guide
OL-26031-07
Chapter 1 CLI Command Reference
ethernet loopback
Examples The following example shows how to start a facility port loopback process, verify it, and then to stop it:
Router(config)# interface gigabitEthernet0/1
Router(config-if)# service instance 10 ethernet
Router(config-if-srv)# encapsulation dotlq 10
Router(config-if-srv)# rewrite ingress tag pop1
Router(config-if-srv)# bridge domain 10
Router(config-if-srv)# end
Router# ethernet loopback start local interface gigabitEthernet 0/1 service instance 10
internal source mac-address 0123.4567.89ab destination mac-address 255.255.255 timeout
9000
Router# ethernet loopback stop local interface gigabitEthernet 0/1 id 3
Related Commands Command Description
show ethernet loopback Shows information about the per port Ethernet loopbacks configured
on a router or an interface.

Cisco ASR 901 Specifications

General

Form Factor	Rack-mountable
Operating Temperature	-40 to 65°C
Product Type	Aggregation Services Router
Rack Height	1 RU
Storage Temperature	-40 to 70°C
Humidity	5% to 95% non-condensing
Weight	4.5 kg
Power Supply	AC or DC
Compliance	RoHS, CE, FCC
Redundancy	Dual power supply option
MTBF	320, 000 hours

Summary

About This Guide

Document Revision History

Details technical changes made to the document across various releases.

Objectives

Explains the purpose and scope of the guide for Cisco ASR 901 Series routers.

Audience

Identifies the intended readers for this guide, focusing on networking professionals.

Conventions

Explains typographical conventions used in the document for clarity and consistency.

Related Documentation

Lists other Cisco documentation relevant to the ASR 901 Series router.

Obtaining Documentation and Submitting a Service Request

Provides information on how to access Cisco documentation and submit service requests.

Using Command-Line Interface

Getting Help

Describes how to use the question mark (?) and Tab key for context-sensitive CLI help.

How to Find Command Options

Explains how to display command syntax and find available keywords and arguments.

Understanding Command Modes

Details the different command modes in the Cisco IOS user interface and their access methods.

Using the No and Default Forms of Commands

Explains how to use 'no' and 'default' forms to disable or revert commands.

Saving Configuration Changes

Describes the procedure for saving running configuration changes to the startup configuration.