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
mtu
Protocol-Specific Versions of the mtu Command
Changing the MTU value with the mtu interface configuration command can affect values for the
protocol-specific versions of the command (the ip mtu command, for example). If the value specified
with the ip mtu interface configuration command is the same as the value specified with the mtu
interface configuration command, and you change the value for the mtu interface configuration
command, the ip mtu value automatically matches the new mtu interface configuration command value.
However, changing the values for the ip mtu configuration commands has no effect on the value for the
mtu interface configuration command.
Examples The following example shows how to specify an MTU of 1000 bytes:
Router# configure terminal
Router(config)# vlan 20
Router(config-vlan)# name test20
Router(config-if)# mtu 1000
Related Commands Command Description
ip mtu Sets the MTU size of IP packets sent on 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.