Dell C7008/C300 Aggregation Core chassis Switch Owner's manual

Dell Networking OS Command

Line

Reference Guide

Dell Networking OS 8.4.7.0

E-Series TeraScale, C-Series,

S-Series (S50/S25)

Notes, Cautions, and Warnings

NOTE: A NOTE indicates important information that helps you make better use of your computer.

CAUTION: A CAUTION indicates potential damage to hardware or loss of data if instructions are not followed.

WARNING: A WARNING indicates a potential for property damage, personal injury, or death.

Information in this publication is subject to change without notice.

Reproduction of these materials in any manner whatsoever without the written permission of Dell Inc. is strictly forbidden.

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companies.

October 2014

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1 Preface

About this Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

Objectives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

Information Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

Related Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

2 CLI Basics

Accessing the Command Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

Multiple Configuration Users . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

Navigating the Command Line Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

Obtaining Help . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

Using the Keyword No . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

Filtering show Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

Displaying All Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

Filtering Command Output Multiple Times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

Enabling Software Features on Devices Using a Command Option . . . . . . . . . . . . . . . .20

Command Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

EXEC Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

EXEC Privilege Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

CONFIGURATION Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23

INTERFACE Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23

LINE Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23

TRACE-LIST Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

MAC ACCESS LIST Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

IP ACCESS LIST Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

ROUTE-MAP Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

PREFIX-LIST Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25

AS-PATH ACL Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25

IP COMMUNITY LIST Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25

REDIRECT-LIST Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25

SPANNING TREE Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26

Per-VLAN SPANNING TREE Plus Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26

RAPID SPANNING TREE Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26

MULTIPLE SPANNING TREE Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26

PROTOCOL GVRP Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27

ROUTER OSPF Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27

ROUTER RIP Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27

ROUTER ISIS Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27

ROUTER BGP Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28

Determining the Chassis Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28

3 File Management

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29

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Basic File Management Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29

Upgrading the C-Series FPGA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59

4 BOOT_USER Mode

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65

Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65

5 Control and Monitoring

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .81

Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .81

6 802.1ag

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .173

Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .173

7 802.3ah

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .185

Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .185

8 802.1X

Important Points to Remember . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .197

9 Access Control Lists (ACL)

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .213

Commands Common to all ACL Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .213

Common IP ACL Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .215

Standard IP ACL Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .220

Extended IP ACL Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .227

Common MAC Access List Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .257

Standard MAC ACL Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .261

Extended MAC ACL Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .265

IP Prefix List Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .270

Route Map Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .276

AS-Path Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .294

IP Community List Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .297

10 ACL VLAN Group

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .303

Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .303

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11 Bidirectional Forwarding Detection (BFD)

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .309

Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .309

12 Border Gateway Protocol IPv4 (BGPv4)

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .325

BGPv4 Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .325

MBGP Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .409

BGP Extended Communities (RFC 4360) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .436

13 Content Addressable Memory (CAM)

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .445

CAM Profile Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .445

Important Points to Remember . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .446

CAM IPv4flow Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .457

CAM Layer 2 ACL Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .460

14 Configuration Rollback

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .463

Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .463

15 Dynamic Host Configuration Protocol (DHCP)

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .473

Commands to Configure the System to be a DHCP Server . . . . . . . . . . . . . . . . . . . . .473

Commands to Configure Secure DHCP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .481

16 Equal Cost Multi-Path

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .489

Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .489

17 Far-End Failure Detection (FEFD)

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .495

Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .495

18 Dell Networking OS Resilient Ring Protocol (FRRP)

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .501

Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .501

Important Points to Remember . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .501

19 Dell Networking OS Service Agent

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .509

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Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .509

20 GARP VLAN Registration (GVRP)

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .541

Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .541

Important Points to Remember . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .542

21 High Availability (HA)

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .551

Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .551

22 Internet Group Management Protocol (IGMP)

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .561

IGMP Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .561

Important Points to Remember . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .561

IGMP Snooping Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .572

Important Points to Remember for IGMP Snooping . . . . . . . . . . . . . . . . . . . . . . . .572

Important Points to Remember for IGMP Querier . . . . . . . . . . . . . . . . . . . . . . . . . .572

23 Interfaces

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .577

Basic Interface Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .577

Port Channel Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .634

Time Domain Reflectometer (TDR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .644

Important Points to Remember . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .644

UDP Broadcast . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .646

Important Points to Remember . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .646

24 IPv4 Routing

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .651

Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .651

25 IPv6 Access Control Lists (IPv6 ACLs)

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .705

Important Points to Remember . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .705

IPv6 ACL Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .706

IPv6 Route Map Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .732

26 IPv6 Basics

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .737

Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .737

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27 IPv6 Border Gateway Protocol (IPv6 BGP)

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .755

IPv6 BGP Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .755

IPv6 MBGP Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .817

28 Intermediate System to Intermediate System (IS-IS)

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .841

Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .841

29 Link Aggregation Control Protocol (LACP)

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .883

Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .883

30 Layer 2

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .889

MAC Addressing Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .889

Virtual LAN (VLAN) Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .910

31 Link Layer Detection Protocol (LLDP)

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .919

Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .919

LLDP-MED Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .928

32 Multicast Listener Discovery (MLD)

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .937

MLD Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .937

MLD Snooping Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .944

33 Multicast Source Discovery Protocol (MSDP)

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .949

Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .949

34 Multiple Spanning Tree Protocol (MSTP)

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .959

Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .959

35 Multicast

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .975

IPv4 Multicast Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .975

IPv6 Multicast Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .992

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36 Neighbor Discovery Protocol (NDP)

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .999

Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .999

37 Object Tracking

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1007

IPv4 Object Tracking Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1007

IPv6 Object Tracking Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1021

38 Open Shortest Path First (OSPFv2 and OSPFv3)

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1027

OSPFv2 Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1027

OSPFv3 Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1088

39 Policy-based Routing (PBR)

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1111

Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1111

40 PIM-Dense Mode (PIM-DM)

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1121

IPv4 PIM-Dense Mode Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1121

41 PIM-Sparse Mode (PIM-SM)

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1123

IPv4 PIM-Sparse Mode Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1123

IPv6 PIM-Sparse Mode Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1146

42 PIM-Source Specific Mode (PIM-SSM)

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1157

IPv4 PIM Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1157

IPv4 PIM-Source Specific Mode Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1157

IPv6 PIM Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1159

IPv6 PIM-Source Specific Mode Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1159

43 Power over Ethernet (PoE) and Power over Ethernet Plus (PoE+)

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1161

Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1161

44 Port Monitoring

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1169

Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1169

| 9

Important Points to Remember . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1170

45 Private VLAN (PVLAN)

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1183

Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1183

Private VLAN Concepts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1183

46 Per-VLAN Spanning Tree plus (PVST+)

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1193

Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1193

47 Quality of Service (QoS)

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1207

Global Configuration Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1207

Per-Port QoS Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1208

Policy-Based QoS Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1216

Important Points to Remember—multicast-bandwidth option . . . . . . . . . . . . . . . .1231

Queue-Level Debugging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1254

48 Router Information Protocol (RIP)

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1265

Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1265

49 Remote Monitoring (RMON)

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1285

Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1285

50 Rapid Spanning Tree Protocol (RSTP)

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1297

Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1297

51 Security

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1309

Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1309

AAA Accounting Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1309

Authorization and Privilege Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1312

Authentication and Password Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1316

RADIUS Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1327

TACACS+ Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1332

Port Authentication (802.1X) Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1335

Important Points to Remember . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1335

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SSH Server and SCP Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1343

Trace List Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1356

Secure DHCP Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1366

52 Service Provider Bridging

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1371

Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1371

Important Points to Remember . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1371

53 sFlow

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1377

Important Points to Remember . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1377

Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1378

54 SNMP and Syslog

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1389

SNMP Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1389

Important Points to Remember . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1390

Syslog Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1406

55 SONET

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1419

Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1419

56 S-Series Stacking Commands

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1437

Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1437

57 Storm Control

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1445

Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1445

Important Points to Remember . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1445

58 Spanning Tree Protocol (STP)

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1453

Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1453

59 Time and Network Time Protocol (NTP)

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1465

Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1465

| 11

60 Uplink Failure Detection (UFD)

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1481

Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1481

61 VLAN Stacking

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1491

Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1491

Important Points to Remember . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1491

62 Virtual Routing and Forwarding (VRF)

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1501

Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1501

62 Virtual Link Trunking (VLT)

63 Virtual Router Redundancy Protocol (VRRP)

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

IPv4 VRRP Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

IPv6 VRRP Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32

64 C-Series Diagnostics and Debugging

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37

Inter-process Communication Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37

RPM Management Port Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43

Data Path Debugging Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45

Interface Troubleshooting Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48

Advanced ASIC Debugging Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52

ACL and System-Flow Debug Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56

Interface Management Debug Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58

Layer 2 Debug Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60

Trace Logging Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61

Offline Diagnostic Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .67

PoE Hardware Status Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .69

Buffer Tuning Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .70

65 E-Series Debugging and Diagnostics

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .77

Diagnostics and Monitoring Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .77

Important Points to Remember . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .78

Offline Diagnostic Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .98

Hardware Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .100

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66 S-Series Debugging and Diagnostics

Offline Diagnostic Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .117

Important Points to Remember . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .117

Buffer Tuning Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .119

Hardware Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .124

A ICMP Message Types

B SNMP Traps

Preface | 13

1

Preface

About this Guide

This book provides information on the FTOS Command Line Interface (CLI). It includes some

information on the protocols and features found in FTOS and on the Dell Networking systems

supported by Dell Networking OS (C-Series c, E-Series e, and S-Series s).

This chapter includes:

• Objectives

• Audience

• Conventions

• Related Documents

Objectives

This document is intended as a reference guide for the Dell Networking OS command line interface

(CLI) commands, with detailed syntax statements, along with usage information and sample output.

For details on when to use the commands, refer to the FTOS Configuration Guide. That guide contains

an Appendix with a list of the RFCs and MIBs (management information base files) supported.

Audience

This document is intended for system administrators who are responsible for configuring or

maintaining networks. This guide assumes you are knowledgeable in Layer 2 and Layer 3 networking

technologies.

Conventions

This document uses the following conventions to describe command syntax:

Convention Description

keyword

Keywords are in bold and should be entered in the CLI as listed.

parameter

Parameters are in italics and require a number or word to be entered in the CLI.

14 | Preface

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Information Symbols

Table 1-1 describes symbols contained in this guide.

Related Documents

For more information about the system, refer to the following documents:

• FTOS Configuration Guide

• Installation and maintenance guides for your system

• Release Notes for your system and Dell Networking OS version

{X} Keywords and parameters within braces must be entered in the CLI.

[X] Keywords and parameters within brackets are optional.

x | y Keywords and parameters separated by bar require you to choose one.

x||y Keywords and parameters separated by a double bar enables you to choose any or all of them.

Table 1-1. Information Symbols

Symbol Brief Description

c

C-Series

This symbol indicates that the selected feature is supported on the C-Series.

e

E-Series

This symbol indicates that the selected feature is supported on the E-Series TeraScale AND

E-Series ExaScale.

e

t

E-Series

TeraScale

This symbol indicates that the selected feature is supported on the E-Series TeraScale platform

only.

s

S-Series

This symbol indicates that the selected feature is supported on the S-Series.

CLI Basics | 15

2

CLI Basics

This chapter describes the command structure and command modes. FTOS commands are in a

text-based interface that allows you to use launch commands, change the command modes, and

configure interfaces and protocols.

This chapter covers the following topics:

• Accessing the Command Line

• Multiple Configuration Users

• Navigating the Command Line Interface

• Obtaining Help

• Using the Keyword No

• Filtering show Commands

• Command Modes

Accessing the Command Line

When the system boots successfully, you are positioned on the command line in the EXEC mode and

not prompted to log in. You can access the commands through a serial console port or a Telnet session.

When you Telnet into the switch, you are prompted to enter a login name and password.

Figure 2-1 is an example of a successful Telnet login session.

Figure 2-1. Login Example

Once you log into the switch, the prompt provides you with current command-level information (refer

to Table 2-1).

telnet 172.31.1.53

Trying 172.31.1.53...

Connected to 172.31.1.53.

Escape character is '^]'.

Login: username

Password:

FTOS>

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Multiple Configuration Users

When a user enters the CONFIGURATION mode and another user(s) is already in that configuration

mode, generates an alert warning message similar to the following:

Figure 2-2. Configuration Mode User Alert

When another user enters the CONFIGURATION mode, Dell Networking OS adds a message similar

to the following, where the user in this case is “admin” on vty2:

% Warning: User “admin” on line vty2 “172.16.1.210” is in configuration

Navigating the Command Line Interface

The Command Line Interface (CLI) prompt displayed by Dell Networking OS is comprised of:

• “hostname”— the initial part of the prompt, “FTOS” by default. You can change it with the

hostname command, as described in hostname.

• The second part of the prompt, reflecting the current CLI mode, as shown in Table 2-1.

The CLI prompt changes as you move up and down the levels of the command structure. Table 2-1 lists

the prompts and their corresponding command levels, called modes. Starting with the

CONFIGURATION mode, the command prompt adds modifiers to further identify the mode. The

command modes are explained in Command Modes.

FTOS#conf

% Warning: The following users are currently configuring the system:

User "" on line console0

User "admin" on line vty0 ( 123.12.1.123 )

User "admin" on line vty1 ( 123.12.1.123 )

User "Irene" on line vty3 ( 123.12.1.321 )

FTOS(conf)#FTOS#

Note: Some of the following modes are not available on C-Series or S-Series.

Table 2-1. Command Prompt and Corresponding Command Mode

Prompt CLI Command Mode

FTOS> EXEC

FTOS# EXEC Privilege

FTOS(conf)# CONFIGURATION

CLI Basics | 17

Obtaining Help

As soon as you are in a command mode there are several ways to access help.

• To obtain a list of keywords at any command mode, do the following:

— Enter a ? at the prompt or after a keyword. There must always be a space before the ?.

• To obtain a list of keywords with a brief functional description, do the following:

— Enter help at the prompt.

• To obtain a list of available options, do the following:

FTOS(conf-if)#12

FTOS(conf-if-gi-0/0)#

FTOS(conf-if-te-0/0)#

FTOS(conf-if-lo-0)#

FTOS(conf-if-nu-0)#

FTOS(conf-if-po-0)#

FTOS(conf-if-vl-0)#

FTOS(conf-if-so-0/0)#

FTOS(conf-if-ma-0/0)#

FTOS(conf-if-range)#

INTERFACE

FTOS(config-ext-nacl)#

FTOS(config-std-nacl)#

IP ACCESS LIST

FTOS(config-line-aux)#

FTOS(config-line-console)#

FTOS(config-line-vty)#

LINE

FTOS(config-ext-macl)#

FTOS(config-std-macl)#

MAC ACCESS LIST

FTOS(config-mon-sess)# MONITOR SESSION

FTOS(config-span)# STP

FTOS(config-mstp)# MULTIPLE SPANNING TREE

FTOS(config-pvst)# Per-VLAN SPANNING TREE Plus

FTOS(config-rstp)# RAPID SPANNING TREE

FTOS(config-gvrp)# PROTOCOL GVRP

FTOS(config-route-map)# ROUTE-MAP

FTOS(conf-nprefixl)# PREFIX-LIST

FTOS(conf-router_rip)# ROUTER RIP

FTOS(conf-redirect-list)# REDIRECT

FTOS(conf-router_bgp)# ROUTER BGP

FTOS(conf-router_ospf)# ROUTER OSPF

FTOS(conf-router_isis)# ROUTER ISIS

FTOS(conf-trace-acl)# TRACE-LIST

Table 2-1. Command Prompt and Corresponding Command Mode

Prompt CLI Command Mode

18 | CLI Basics

www.dell.com | support.dell.com

— Type a keyword followed by a space and a ?

• Type a partial keyword followed by a ?

— A display of keywords beginning with the partial keyword is listed.

Figure 2-3 illustrates the results of entering ip ? at the prompt.

Figure 2-3. Partial Keyword Example

When entering commands, you can take advantage of the following timesaving features:

• The commands are not case sensitive.

• You can enter partial (truncated) command keywords. For example, you can enter int gig int

interface for the interface gigabitethernet interface command.

• Use the TAB key to complete keywords in commands.

• Use the up arrow key to display the last enabled command.

• Use either the Backspace key or the Delete key to erase the previous character.

FTOS(conf)#ip ?

access-list Named access-list

as-path BGP autonomous system path filter

community-list Add a community list entry

domain-list Domain name to complete unqualified host name

domain-lookup Enable IP Domain Name System hostname translation

domain-name Define the default domain name

fib FIB configuration commands

ftp FTP configuration commands

host Add an entry to the ip hostname table

max-frag-count Max. fragmented packets allowed in IP re-assembly

multicast-routing Enable IP multicast forwarding

name-server Specify addess of name server to use

pim Protocol Independent Multicast

prefix-list Build a prefix list

radius Interface configuration for RADIUS

redirect-list Named redirect-list

route Establish static routes

scp SCP configuration commands

source-route Process packets with source routing header options

ssh SSH configuration commands

tacacs Interface configuration for TACACS+

telnet Specify telnet options

tftp TFTP configuration commands

trace-group Named trace-list

trace-list Named trace-list

FTOS(conf)#ip

CLI Basics | 19

Use the left and right arrow keys to navigate left or right in the Dell Networking OS command line.

Table 2-2 defines the key combinations valid at the Dell Networking OS command line.

Using the Keyword No

To disable, delete, or return to default values, use the no form of the commands. For most commands,

if you type the keyword no in front of the command, you will disable that command or delete it from

the running configuration. In this document, the no form of the command is discussed in the Command

Syntax portion of the command description.

Filtering show Commands

You can filter the display output of a show command to find specific information, to display certain

information only, or to begin the command output at the first instance of a regular expression or phrase.

When you execute a show command, followed by a pipe ( | ) and one of the parameters listed below

and a regular expression, the resulting output either excludes or includes those parameters, as defined

by the parameter:

• display — display additional configuration information

Table 2-2. Short-cut Keys and their Actions

Key

Combination Action

CNTL-A Moves the cursor to the beginning of the command line.

CNTL-B Moves the cursor back one character.

CNTL-D Deletes character at cursor.

CNTL-E Moves the cursor to the end of the line.

CNTL-F Moves the cursor forward one character.

CNTL-I Completes a keyword.

CNTL-K Deletes all characters from the cursor to the end of the command line.

CNTL-L Re-enters the previous command.

CNTL-N Return to more recent commands in the history buffer after recalling commands with Ctrl-P

or the up arrow key

CNTL-P Recalls commands, beginning with the last command

CNTL-R Re-enters the previous command.

CNTL-U Deletes the line.

CNTL-W Deletes the previous word.

CNTL-X Deletes the line.

CNTL-Z Ends continuous scrolling of command outputs.

Esc B Moves the cursor back one word.

Esc F Moves the cursor forward one word.

Esc D Deletes all characters from the cursor to the end of the word.

20 | CLI Basics

www.dell.com | support.dell.com

• except— display only text that does not match the pattern (or regular expression)

• find — search for the first occurrence of a pattern

• grep — display text that matches a pattern

• no-more — do not paginate the display output

• save - copy output to a file for future use

The grep command option has an ignore-case sub-option that makes the search case-insensitive.

For example, the commands:

• show run | grep Ethernet would return a search result with instances containing a capitalized

“Ethernet,” such as interface GigabitEthernet 0/0.

• show run | grep ethernet would not return the search result, above, because it only searches

for instances containing a non-capitalized “ethernet.”

Executing the command show run | grep Ethernet ignore-case would return instances

containing both “Ethernet” and “ethernet.”

Displaying All Output

To display the output all at once (not one screen at a time), use the no-more after the pipe. This is

similar to the terminal length screen-length command except that the no-more option affects the

output of just the specified command.For example:

FTOS#show running-config | no-more

Filtering Command Output Multiple Times

You can filter a single command output multiple times. Place the save option as the last filter. For

example:

FTOS# command | grep regular-expression | except regular-expression | grep

other-regular-expression | find regular-expression | no-more | save

Enabling Software Features on Devices Using a Command

Option

This capability to activate software applications or components on a device using a command is

supported on the C-Series platform.

Starting with Release 8.4.7.0, you can enable or disable specific software functionalities or

applications that need to run on a device by using a command attribute in the CLI interface. This

capability enables effective, streamlined management and administration of applications and utilities

that run on a device.

Note: Dell Networking OS accepts a space before or after the pipe, no space before or after

the pipe, or any combination. For example:

FTOS#command | grep gigabit |except regular-expression | find

regular-expression

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