Cisco 2955T 12 - Catalyst Switch manuals

Cisco 2955T 12 - Catalyst Switch Specifications (608 pages)

Brand: Cisco | Category: Software | Size: 7.13 MB |

English

Table of contents

Software Configuration Guide

1

CONTENTS

3

7 Clustering Switches 7-1

7

Contents

10

78-11380-07

10

12 Configuring STP 12-1

11

15 Configuring VLANs 15-1

13

16 Configuring VTP 16-1

15

20 Configuring UDLD 20-1

17

21 Configuring CDP 21-1

17

23 Configuring RMON 23-1

18

25 Configuring SNMP 25-1

19

27 Configuring QoS 27-1

20

29 Troubleshooting 29-1

22

A Supported MIBs A-1

22

Audience

23

Conventions

24

Related Publications

25

Obtaining Documentation

26

Ordering Documentation

27

Documentation Feedback

27

Cisco.com

28

Technical Assistance Center

28

Cisco TAC Escalation Center

29

Overview

31

Chapter 1 Overview

32

Features

32

Management Options

37

Large Campus Configuration

44

IOS Command Modes

49

• Change terminal

50

• Perform basic tests

50

• Display system

50

Getting Help

51

Abbreviating Commands

52

Understanding CLI Messages

53

Using Command History

53

Using Editing Features

54

Accessing the CLI

57

Port Status Monitoring Alarms

61

Triggering Alarm Options

62

Setting the Power Mode

63

Configuring Alarm Profiles

68

Enabling SNMP Traps

70

Getting Started with CMS

71

Front Panel View

73

Cluster Tree

75

Front-Panel Images

75

Figure 4-6 Port Icons

76

Redundant Power System LED

77

Port Modes and LEDs

78

VLAN Membership Modes

79

Topology View

80

Topology Icons and Labels

82

Device and Link Labels

82

Colors in the Topology View

83

Menus and Toolbar

84

Front Panel View Popup Menus

90

Topology View Popup Menus

91

Device Popup Menus

92

Interaction Modes

94

Expert Mode

95

Tool Tips

95

Online Help

95

CMS Window Components

96

Host Name List

97

Tabs, Lists, and Tables

98

Filter Editor

98

Accessing CMS

99

Access Modes in CMS

100

Saving Your Configuration

101

Restoring Your Configuration

102

CMS Preferences

102

Where to Go Next

103

Assigning Switch Information

106

Default Switch Information

107

DHCP Client Request Process

108

Configuring the DHCP Server

109

Configuring the TFTP Server

109

Configuring the DNS

110

Configuring the Relay Device

110

Obtaining Configuration Files

111

Example Configuration

112

Configuring IE2100 CNS Agents

117

CNS Configuration Service

118

CNS Event Service

119

DeviceID

120

Host Name and DeviceID

120

Initial Configuration

121

Synchronized Configuration

122

Enabling the CNS Event Agent

124

Displaying CNS Configuration

129

Clustering Switches

131

Understanding Switch Clusters

132

Planning a Switch Cluster

135

Discovery through CDP Hops

136

Release 12.1(9)EA1)

137

Virtual IP Addresses

143

IP Addresses

146

Host Names

147

Passwords

147

SNMP Community Strings

147

TACACS+ and RADIUS

148

Management VLAN

149

LRE Profiles

149

Creating a Switch Cluster

150

Adding Member Switches

151

2900-LRE-24-1

152

Verifying a Switch Cluster

156

Command switch

158

Trap 1, Trap 2, Trap 3

158

Member 1 Member 2 Member 3

158

SNMP Manager

158

Administering the Switch

159

• User show commands

160

Configuring NTP

161

Default NTP Configuration

162

Configuring NTP Associations

163

Setting the System Clock

169

Configuring the Time Zone

170

Configuring a System Name

173

Configuring a System Prompt

174

Understanding DNS

174

Default DNS Configuration

175

Setting Up DNS

175

Creating a Banner

176

Configuring a Login Banner

178

Building the Address Table

179

MAC Addresses and VLANs

179

Managing the ARP Table

185

Understanding TACACS+

195

TACACS+ Operation

197

Configuring TACACS+

197

Default TACACS+ Configuration

198

Starting TACACS+ Accounting

202

Understanding RADIUS

203

RADIUS Operation

204

Configuring RADIUS

205

Defining AAA Server Groups

210

Starting RADIUS Accounting

213

Authorization

216

Understanding SSH

218

Configuring SSH

218

Device Roles

220

Figure 10-2 Message Exchange

221

Voice VLAN Ports

223

Supported Topologies

225

Default 802.1X Configuration

226

Changing the Quiet Period

231

Enabling Multiple Hosts

233

Understanding Interface Types

235

Access Ports

236

Trunk Ports

236

EtherChannel Port Groups

237

Port-Based VLANs

237

Using the Interface Command

238

Configuring Switch Interfaces

243

Configuration Guidelines

245

Configuring STP

253

STP Overview

254

Bridge Protocol Data Units

254

Election of the Root Switch

255

Spanning-Tree Timers

257

Blocking State

259

Listening State

259

Learning State

259

STP and IEEE 802.1Q Trunks

260

Default STP Configuration

262

STP Configuration Guidelines

263

Disabling STP

263

Configuring the Root Switch

264

Configuring the Port Priority

267

Configuring the Path Cost

268

Configuring the Hello Time

270

Configuring RSTP and MSTP

275

Understanding RSTP

276

Rapid Convergence

277

Synchronization of Port Roles

278

Table 13-2 RSTP BPDU Flags

279

Topology Changes

280

Understanding MSTP

281

IST, CIST, and CST

282

Hop Count

284

Boundary Ports

284

Understanding Port Fast

300

Understanding BPDU Guard

301

Understanding BPDU Filtering

301

Understanding UplinkFast

302

How CSUF Works

304

Limitations

306

Connecting the Stack Ports

306

Understanding BackboneFast

308

Understanding Root Guard

310

Understanding Loop Guard

311

Enabling Port Fast

312

Enabling BPDU Guard

313

Enabling BPDU Filtering

314

Enabling BackboneFast

317

Enabling EtherChannel Guard

317

Enabling Root Guard

318

Enabling Loop Guard

318

Configuring VLANs

321

Supported VLANs

322

VLAN Port Membership Modes

323

Token Ring VLANs

325

Saving VLAN Configuration

327

Deleting a VLAN

330

Default VLAN Configuration

332

Displaying VLANs

334

Configuring VLAN Trunks

335

Configuring a Trunk Port

338

Load Sharing Using STP

341

Configuring VMPS

345

Dynamic Port VLAN Membership

346

Default VMPS Configuration

348

VMPS Configuration Guidelines

348

Configuring the VMPS Client

349

Reconfirming VLAN Memberships

350

Monitoring the VMPS

351

VMPS Configuration Example

352

Configuring VTP

355

The VTP Domain

356

VTP Modes

357

VTP Advertisements

357

VTP Version 2

358

VTP Pruning

358

Understanding VTP

359

VTP Configuration Options

361

VTP Configuration Guidelines

362

Configuring a VTP Server

363

Configuring a VTP Client

365

Enabling VTP Version 2

367

Enabling VTP Pruning

368

Monitoring VTP

369

Configuring Voice VLAN

371

Displaying Voice VLAN

376

Understanding IGMP Snooping

377

Joining a Multicast Group

378

Leaving a Multicast Group

380

Immediate-Leave Processing

380

Configuring IGMP Snooping

381

Setting the Snooping Method

382

Configuring MVR

391

Configuring MVR Interfaces

393

Displaying MVR Information

395

Configuring IGMP Filtering

396

Configuring IGMP Profiles

397

Applying IGMP Profiles

398

Configuring Storm Control

401

Enabling Storm Control

402

Configuring Protected Ports

403

Configuring Port Security

404

Security Violations

405

Configuring UDLD

413

Understanding UDLD

414

Enabling UDLD Globally

416

Enabling UDLD on an Interface

416

Displaying UDLD Status

418

Configuring CDP

419

Disabling and Enabling CDP

421

Configuring SPAN and RSPAN

425

Understanding SPAN and RSPAN

426

SPAN Session

427

Traffic Types

427

Source Port

428

Destination Port

428

Reflector Port

428

SPAN Traffic

429

SPAN and RSPAN Session Limits

430

Configuring SPAN

431

Configuring RSPAN

436

Creating an RSPAN Session

437

EXEC command

440

Configuring RMON

441

Default RMON Configuration

443

Displaying RMON Status

446

System Log Message Format

448

Synchronizing Log Messages

452

Configuring SNMP

459

SNMP Versions

460

SNMP Manager Functions

461

SNMP Agent Functions

462

Default SNMP Configuration

464

SNMP Configuration Guidelines

464

Disabling the SNMP Agent

465

Configuring Community Strings

465

SNMP Examples

473

Displaying SNMP Status

474

Network Security with ACLs

475

Understanding ACLs

476

Configuring ACLs

480

Unsupported Features

481

ACL Numbers

482

Layer 3 Parameters:

484

Layer 4 Parameters

484

Applying Time Ranges to ACLs

489

Creating MAC Access Groups

493

Displaying ACL Information

495

Displaying ACLs

496

Examples for Compiling ACLs

497

Numbered ACL Examples

499

Extended ACL Examples

499

Named ACL Example

499

Configuring QoS

501

Understanding QoS

502

Basic QoS Model

504

Classification

505

Policing and Marking

507

Mapping Tables

508

Queueing and Scheduling

508

Configuring Auto-QoS

509

Enabling Auto-QoS for VoIP

512

• show mls qos

513

• show mls qos map cos-dscp

513

• show wrr-queue bandwidth

513

• show wrr-queue cos-map

513

Configuring Standard QoS

515

Configuring Trusted Boundary

520

Enabling Pass-Through Mode

522

Configuring a QoS Policy

523

Configuring CoS Maps

531

Configuring the Egress Queues

534

Configuring WRR Priority

535

Configuring EtherChannels

541

Understanding EtherChannels

542

PAgP and LACP Modes

543

Exchanging PAgP Packets

544

Exchanging LACP Packets

545

Configuring Hot Standby Ports

553

Troubleshooting

557

Using Ping

567

Using Layer 2 Traceroute

568

Usage Guidelines

569

Using Debug Commands

570

Using the crashinfo File

573

Supported MIBs

575

MIB List

576

Numerics

579

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