Cisco Nexus 5500 Series Operating manual

Cisco Nexus 5500 Series NX-OS Layer 2 Interfaces Command Reference

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Preface

This preface describes the audience, organization, and conventions of the Cisco Nexus 5500 Series

NX-OS Layer 2 Interfaces Command Reference. It also provides information on how to obtain related

documentation.

This preface includes the following sections:

•Audience, page 1

•Document Conventions, page 1

•Related Documentation, page 2

•Obtaining Documentation and Submitting a Service Request, page 3

Audience

This publication is for experienced users who configure and maintain Cisco NX-OS devices.

Document Conventions

Command descriptions use these conventions:

Convention Description

boldface font Commands and keywords are in boldface.

italic font Arguments for which you supply values are in italics.

[ ] Elements in square brackets are optional.

{x | y | z} Alternative keywords are grouped in braces and separated by vertical bars.

[ x | y | z ] Optional alternative keywords are grouped in brackets and separated by vertical

bars.

string A nonquoted set of characters. Do not use quotation marks around the string or

the string will include the quotation marks.

Cisco Nexus 5500 Series NX-OS Layer 2 Interfaces Command Reference

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Chapter

Screen examples use these conventions:

This document uses the following conventions:

Note Means reader take note. Notes contain helpful suggestions or references to material not covered in the

manual.

Caution Means reader be careful. In this situation, you might do something that could result in equipment damage

or loss of data.

Related Documentation

Documentation for Cisco Nexus 5000 Series Switches and Cisco Nexus 2000 Series Fabric Extenders is

available at the following URL:

http://www.cisco.com/en/US/products/ps9670/tsd_products_support_series_home.html

The documentation set includes the following types of documents:

•Licensing Information Guide

•Release Notes

•Installation and Upgrade Guides

•Configuration Guides

•Configuration Examples and TechNotes

•Programming Guides

•Operations Guides

•Error and System Message Guides

•Field Notices

•Security Advisories, Responses and Notices

•Troubleshooting Guide

•Command References

•MIB Reference Guide

screen font Terminal sessions and information that the switch displays are in screen font.

boldface screen

font

Information you must enter is in boldface screen font.

italic screen font Arguments for which you supply values are in italic screen font.

< > Nonprinting characters, such as passwords, are in angle brackets.

[ ] Default responses to system prompts are in square brackets.

!, # An exclamation point (!) or a pound sign (#) at the beginning of a line of code

indicates a comment line.

Cisco Nexus 5500 Series NX-OS Layer 2 Interfaces Command Reference

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Chapter

Obtaining Documentation and Submitting a Service Request

Documentation Feedback

To provide technical feedback on this document or to report an error or ommission, please send your

comments to nexu[email protected]. We appreciate your feedback.

Obtaining Documentation and Submitting a Service Request

For information on obtaining documentation, using the Cisco Bug Search Tool (BST), submitting a

service request, and gathering additional information, see What’s New in Cisco Product Documentation

at: http://www.cisco.com/c/en/us/td/docs/general/whatsnew/whatsnew.html.

Subscribe to What’s New in Cisco Product Documentation, which lists all new and revised

Cisco technical documentation as an RSS feed and delivers content directly to your desktop using a

reader application. The RSS feeds are a free service.

Cisco Nexus 5500 Series NX-OS Layer 2 Interfaces Command Reference

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Chapter

Cisco Nexus 5500 Series NX-OS Layer 2 Interfaces Command Reference

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New and Changed Information

This chapter provides release-specific information for each new and changed feature in the Cisco Nexus

5500 Series NX-OS Layer 2 Interfaces Command Reference. The latest version of this document is

available at the following Cisco website:

http://www.cisco.com/en/US/products/ps9670/prod_command_reference_list.html

To check for additional information about this Cisco NX-OS Release, see the Cisco Nexus 6000 Series

NX-OS Release Notes, Release 6.0 available at the following Cisco website:

http://www.cisco.com/en/US/products/ps9670/prod_release_notes_list.html

New and Changed Information for Cisco NX-OS Releases

This section includes the following topics:

•New and Changed Information for Cisco NX-OS Release 6.0(2)N1(2), page 17

New and Changed Information for Cisco NX-OS Release 6.0(2)N1(2)

Table 1 summarizes the new and changed features for Cisco NX-OS Release 6.0(2)N1(2) and tells you

where they are documented.

Table 1 New and Changed Information for Release 6.0(2)N1(2)

Feature Description Where Documented

QSFP+ GEM This feature was introduced. •B Commands

•C Commands

•D Commands

•I Commands

•M Commands

•S Commands

•Show Commands

Cisco Nexus 5500 Series NX-OS Layer 2 Interfaces Command Reference

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Chapter

Cisco Nexus 5500 Series NX-OS Layer 2 Interfaces Command Reference

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B Commands

This chapter describes the Cisco NX-OS Ethernet and virtual Ethernet commands that begin with B.

Cisco Nexus 5500 Series NX-OS Layer 2 Interfaces Command Reference

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Chapter B Commands

bandwidth (interface)

To set the inherited and received bandwidth values for an interface, use the bandwidth command. To

restore the default values, use the no form of this command.

bandwidth {kbps | inherit [kbps]}

no bandwidth {kbps | inherit [kbps]}

Syntax Description

Command Default 1000000 kbps

Command Modes Interface configuration mode

Subinterface configuration mode

Command History

Usage Guidelines The bandwidth command sets an informational parameter to communicate only the current bandwidth

to the higher-level protocols; you cannot adjust the actual bandwidth of an interface using this command.

The bandwidth inherit command controls how a subinterface inherits the bandwidth of its main

interface.

The no bandwidth inherit command enables all subinterfaces to inherit the default bandwidth of the

main interface, regardless of the configured bandwidth. If a bandwidth is not configured on a

subinterface, and you use the bandwidth inherit command, all subinterfaces will inherit the current

bandwidth of the main interface. If you configure a new bandwidth on the main interface, all

subinterfaces will use this new value.

If you do not configure a bandwidth on the subinterface and you configure the bandwidth inherit

command on the main interface, the subinterfaces will inherit the specified bandwidth.

In all cases, if an interface has an explicit bandwidth setting configured, then that interface will use that

setting, regardless of whether the bandwidth inheritance setting is in effect.

Examples This example shows how to configure the badwidth for a Layer 2 interface:

switch(config)# interface ethernet 1/5

switch(config-if)# bandwidth 1000

switch(config-if)#

kbps Informational bandwidth in kilobits per second. Valid values are from 1 to

10000000.

inherit (Optional) Specifies that the bandwidth be inherited from the parent

interface.

Release Modification

5.2(1)N1(1) This command was introduced.

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Chapter B Commands

bandwidth (interface)

This example shows how to configure subinterfaces to inherit the bandwidth from the parent routed

interface:

switch(config)# interface ethernet 1/5

switch(config-if)# no switchport

switch(config-if)# bandwidth inherit 30000

switch(config-if)# interface ethernet 1/1.1

switch(config-subif)#

Related Commands Command Description

show interface Displays the interface configuration information.

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Chapter B Commands

beacon (interface)

To turn on the beacon LED for a port of an interface, use the beacon command. To turn off the beacon

LED for the interface, use the no form of this command.

beacon

no beacon

Syntax Description This command has no arguments or keywords.

Command Default None

Command Modes Interface configuration mode

Command History

Usage Guidelines Use the beacon command to toggle the port LED of an interface to easily identify each time a beacon is

sent to check for pending packets on the interface.

Examples This example shows how to turn on the locator beacon LED for a specific interface:

switch(config)# interface ethernet 2/1

switch(config-if)# beacon

This example shows how to turn off the locator beacon LED for a specific interface:

switch(config)# interface ethernet 2/1

switch(config-if)# no beacon

Related Commands

Release Modification

5.2(1)N1(1) This command was introduced.

Command Description

show interface Displays configuration information for an interface.

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