IBM 12.1(22)EA6 manuály

Ibm 12.1(22)EA6 Uživatelský manuál (550 strany)

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Software Configuration Guide

“Notices.”

First Edition (October 2005)

CONTENTS

9 Configuring STP 9-1

10 Configuring MSTP 10-1

12 Configuring VLANs 12-1

Contents

13 Configuring VTP 13-1

16 Configuring UDLD 16-1

17 Configuring CDP 17-1

19 Configuring RMON 19-1

21 Configuring SNMP 21-1

23 Configuring QoS 23-1

25 Troubleshooting 25-1

A Supported MIBs A-1

D Notices D-1

Audience

Conventions

Related Publications

Performance

Manageability

Redundancy

VLAN Support

Security

Monitoring

Management Interface Options

Chapter 1 Overview

Where to Go Next

Cisco IOS Command Modes

• Change terminal

• Perform basic tests

• Display system

Getting Help

Abbreviating Commands

Understanding CLI Messages

Using Command History

Recalling Commands

Accessing the CLI

Default Switch Information

Assigning Switch Information

Default Boot Configuration

• reload in [hh:]mm [text]

Administering the Switch

• User show commands

Configuring NTP

Default NTP Configuration

Configuring NTP Associations

Setting the System Clock

Configuring the Time Zone

Configuring a System Name

Understanding DNS

Default DNS Configuration

Setting Up DNS

Default Banner Configuration

Configuring a Login Banner

Building the Address Table

MAC Addresses and VLANs

Managing the ARP Table

Understanding TACACS+

TACACS+ Operation

Configuring TACACS+

Default TACACS+ Configuration

Starting TACACS+ Accounting

Understanding RADIUS

RADIUS Operation

Configuring RADIUS

Default RADIUS Configuration

Defining AAA Server Groups

104

Starting RADIUS Accounting

107

Authorization

111

Understanding SSH

112

Configuration Guidelines

113

Limitations

113

Configuring SSH

113

Configuring the SSH Server

115

Authentication

117

Device Roles

118

Figure 6-2 Message Exchange

120

IEEE 802.1x Accounting

121

IEEE 802.1x Host Mode

122

Wireless clients

123

Access point

123

(RADIUS)

123

Unidirectional State

126

Bidirectional State

126

Changing the Quiet Period

133

Configuring the Host Mode

136

Configuring a Guest VLAN

136

Understanding Interface Types

143

Access Ports

144

Trunk Ports

144

Port-Based VLANs

145

EtherChannel Port Groups

145

Using the Interface Command

146

Configuring Smartports Macros

159

Creating Smartports Macros

162

Applying Smartports Macros

163

Displaying Smartports Macros

166

Configuring STP

167

STP Overview

168

Blocking State

171

Listening State

172

Learning State

172

Forwarding State

172

Disabled State

173

STP and IEEE 802.1Q Trunks

176

Switch Modules

177

Disabling Spanning Tree

180

Configuring the Root Switch

181

Configuring the Port Priority

183

Configuring the Path Cost

185

Configuring the Hello Time

187

Configuring MSTP

191

IST, CIST, and CST

192

Understanding MSTP

193

Hop Count

194

Understanding RSTP

195

Rapid Convergence

196

Synchronization of Port Roles

197

Table 10-2 RSTP BPDU Flags

198

Topology Changes

199

Configuring MSTP Features

200

Default MSTP Configuration

201

MSTP Configuration Guidelines

201

Understanding Port Fast

214

Understanding BPDU Guard

215

Understanding BPDU Filtering

215

Understanding UplinkFast

216

Understanding BackboneFast

217

Blocked port

219

Understanding Root Guard

220

Understanding Loop Guard

221

Enabling Port Fast

222

Enabling BPDU Guard

223

Enabling BPDU Filtering

224

Enabling BackboneFast

226

Enabling EtherChannel Guard

227

Enabling Root Guard

227

Enabling Loop Guard

228

Configuring VLANs

231

Supported VLANs

232

VLAN Port Membership Modes

233

Token Ring VLANs

235

Saving VLAN Configuration

237

Deleting a VLAN

240

Default VLAN Configuration

242

Displaying VLANs

243

Trunking Overview

244

Configuring VLAN Trunks

245

Configuring a Trunk Port

248

Load Sharing Using STP

252

Configuring VMPS

255

Understanding VMPS

256

Dynamic Port VLAN Membership

256

VMPS Configuration Guidelines

257

Configuring the VMPS Client

258

Reconfirming VLAN Memberships

259

Changing the Retry Count

260

Monitoring the VMPS

260

VMPS Configuration Example

261

Switch 3

262

Switch 2

262

Switch 1

262

Configuring VTP

263

The VTP Domain

264

VTP Modes

265

VTP Advertisements

265

VTP Version 2

266

VTP Pruning

266

Understanding VTP

267

Default VTP Configuration

268

VTP Configuration Options

269

VTP Configuration Guidelines

270

Domain Names

270

Passwords

270

VTP Version

270

Configuration Requirements

271

Configuring a VTP Server

271

Configuring a VTP Client

272

Enabling VTP Version 2

274

Enabling VTP Pruning

275

Monitoring VTP

277

IGMP Versions

280

Joining a Multicast Group

281

Understanding IGMP Snooping

282

Leaving a Multicast Group

283

Immediate-Leave Processing

284

IGMP Report Suppression

284

Source-Only Networks

285

Configuring IGMP Snooping

286

Setting the Snooping Method

287

Configuring the Aging Time

292

Configuring MVR

295

Default MVR Configuration

296

Configuring MVR Interfaces

298

Displaying MVR Information

299

Configuring IGMP Profiles

301

Applying IGMP Profiles

302

Understanding Storm Control

307

Configuring Storm Control

308

Configuring Protected Ports

309

Understanding Port Security

310

Secure MAC Addresses

311

Security Violations

311

Configuring Port Security

314

Modes of Operation

319

Understanding UDLD

320

Default UDLD Configuration

322

Enabling UDLD Globally

323

Enabling UDLD on an Interface

324

Displaying UDLD Status

325

Configuring CDP

327

Default CDP Configuration

328

Disabling and Enabling CDP

329

Configuring SPAN and RSPAN

333

Understanding SPAN and RSPAN

334

SPAN Session

335

Traffic Types

335

Source Port

336

Destination Port

336

Reflector Port

337

SPAN Traffic

337

SPAN and RSPAN Session Limits

339

SPAN Configuration Guidelines

339

Configuring SPAN

340

Configuring RSPAN

344

EXEC command

349

Configuring RMON

351

Default RMON Configuration

353

Displaying RMON Status

356

System Log Message Format

358

Synchronizing Log Messages

362

Configuring SNMP

369

SNMP Versions

370

SNMP Manager Functions

371

SNMP Agent Functions

371

SNMP Community Strings

372

SNMP Notifications

372

Default SNMP Configuration

373

SNMP Configuration Guidelines

374

Disabling the SNMP Agent

374

Configuring Community Strings

375

SNMP Examples

382

Displaying SNMP Status

383

Understanding ACLs

386

Server A (R&D)

387

Server B (R&D)

387

Server C (HR)

387

Unsupported Features

390

ACL Numbers

391

Configuring ACLs

392

Layer 4 Parameters

394

Applying Time Ranges to ACLs

398

Creating MAC Access Groups

402

Displaying ACLs

404

Displaying Access Groups

405

Cisco router

406

Workstation

406

Internet

406

Numbered ACL Examples

407

Extended ACL Examples

407

Named ACL Example

407

Configuring QoS

409

Understanding QoS

410

Basic QoS Model

411

Classification

412

Policing and Marking

414

Mapping Tables

415

Queueing and Scheduling

415

How Class of Service Works

415

Port Priority

415

Port Scheduling

416

Egress CoS Queues

416

Configuring Auto-QoS

417

Enabling Auto-QoS for VoIP

420

• show mls qos

421

• show mls qos map cos-dscp

421

• show wrr-queue bandwidth

421

• show wrr-queue cos-map

421

Configuring Standard QoS

425

Configuring Trusted Boundary

428

Enabling Pass-Through Mode

430

Configuring a QoS Policy

431

Configuring CoS Maps

439

Configuring the Egress Queues

442

Configuring WRR Priority

443

Failover

449

Understanding EtherChannels

450

Channel-group

451

Physical ports

451

PAgP and LACP Modes

452

Exchanging PAgP Packets

452

Exchanging LACP Packets

453

EtherChannel On Mode

454

BladeCenter

455

EtherChannel

455

Configuring EtherChannels

456

Configuring Hot Standby Ports

461

Troubleshooting

467

Using Ping

474

Understanding Ping

474

Executing Ping

474

Using Layer 2 Traceroute

475

Usage Guidelines

475

Displaying the Physical Path

476

Using Debug Commands

477

Switch# debug all

478

Using the crashinfo File

479

Supported MIBs

481

MIB List

482

APPENDIX

485

Copying Files

489

Deleting Files

490

Creating a tar File

490

Extracting a tar File

491

Working with Software Images

503

Image Location on the Switch

504

Before You Call

517

Using the Documentation

518

Software Service and Support

518

Hardware Service and Support

518

Edition Notice

520

Trademarks

520

Appendix D Notices

521

Numerics

523

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IBM 12.1(22)EA6 manuály

Ibm 12.1(22)EA6 Uživatelský manuál (550 strany)

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