Enterasys VHSIM2-A6DP Guide de l'utilisateur Page 380
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- Table des matières
- MARQUE LIVRES
Noté. / 5. Basé sur avis des utilisateurs
Defining VLANs
13-2 VLAN Operation and Network Applications
13.1 DEFINING VLANs
A Virtual Local Area Network is a group of devices that function as a single Local Area Network
segment (broadcast domain). The devices that make up a particular VLAN may be widely
separated, both by geography and location in the network.
The creation of VLANs allows users located in separate areas or connected to separate ports to
belong to a single VLAN group. Users that are assigned to such a group will send and receive
broadcast and multicast traffic as though they were all connected to a common network.
VLAN-aware switches isolate broadcast, multicast, and unknown traffic received from VLAN
groups, so that traffic from stations in a VLAN are confined to that VLAN.
When stations are assigned to a VLAN, the performance of their network connection is not
changed. Stations connected to switched ports do not sacrifice the performance of the dedicated
switched link to participate in the VLAN. As a VLAN is not a physical location, but a
membership, the network switches determine VLAN membership by associating a VLAN with a
particular port or frame type.
Figure 13-1 shows a simple example of a port-based VLAN. Two buildings house the Sales and
Finance departments of a single company, and each building has its own internal network. The
stations in each building connect to a SmartSwitch in the basement. The two SmartSwitches are
connected to one another with a high speed link.
- Matrix E7 Series and 1
- Local Management User’s Guide 1
- ENTERASYS NETWORKS, INC 4
- PROGRAM LICENSE AGREEMENT 4
- Contents 7
- CHASSIS MENU SCREENS 8
- NETWORK TOOLS SCREENS 12
- ABOUT IGMP 13
- About This Guide 21
- STRUCTURE OF THIS GUIDE 22
- Structure of This Guide 23
- About This Guide xvi 23
- RELATED DOCUMENTS 24
- DOCUMENT CONVENTIONS 24
- About This Guide xviii 25
- Introduction 27
- Overview 28
- 1-2 Introduction 28
- 1.1.1 The Management Agent 29
- 1.1.2 In-Band vs. Out-of-Band 29
- Local Management Requirements 30
- 1-4 Introduction 30
- Introduction 1-5 31
- Event Message Field 32
- Heading Field 32
- Display Fields 33
- Input Fields 33
- Selection Fields 33
- Command Fields 33
- 1-8 Introduction 34
- Key Function 34
- 1.6 GETTING HELP 35
- 6H252-17 38
- Fast Enet 38
- Management Terminal Setup 39
- Table 2-1 VT Terminal Setup 39
- 2.2 TELNET CONNECTIONS 40
- Accessing Local Management 43
- * Refer to the SmartTrunk 45
- Using the Exit Command 46
- Using the RETURN Command 47
- 3.2 PASSWORD SCREEN 48
- 3.3 MAIN MENU SCREEN 50
- 3.4 MODULE SELECTION SCREEN 51
- 3.4.1 Selecting a Module 53
- MODULE CONFIGURATION MENU 54
- MODULE STATISTICS MENU 54
- NETWORK TOOLS 54
- SECURITY 54
- Module Menu Screen 56
- Overview of Security Methods 58
- Term Definition 61
- Authentication 64
- • Frames are discarded 67
- • Neither method performs 67
- 3.7 SECURITY MENU SCREEN 68
- Security Menu Screen 70
- 3.8 PASSWORDS SCREEN 71
- Radius Configuration Screen 75
- EAP Statistics Menu Screen 89
- Use this field… To… 100
- Chassis Menu Screens 101
- 4.1 CHASSIS MENU SCREEN 102
- When to Use 102
- How to Access 102
- Screen Example 102
- Menu Descriptions 103
- Field Descriptions 105
- 4.2.1 Setting the IP Address 106
- 4.2.2 Setting the Subnet Mask 107
- Chassis Configuration Screen 109
- Chassis Menu Screens 4-9 109
- 4046_102 110
- SNMP TRAPS CONFIGURATION 110
- 4-22 Chassis Menu Screens 122
- Chassis Menu Screens 4-25 125
- Screen Navigation Paths 127
- General Configuration Screen 133
- 5.2.1 Setting the IP Address 134
- 5.2.2 Setting the Subnet Mask 135
- 5.2.5 Setting the Module Name 138
- 5.2.6 Setting the Module Date 138
- 5.2.7 Setting the Module Time 139
- THIS COM PORT? 141
- 5.2.11 Clearing NVRAM 142
- 5.6.1 Entering IP Addresses 154
- 5.6.2 Enable/Disable ACL 155
- Usage Notes 188
- Definitions to Know 189
- 6.8.1 802.3ad Port Screen 193
- ActorOperState 198
- PartnerAdminKey 199
- PartnerAdminState (hex) 199
- PartnerOperKey 199
- PartnerOperState 199
- Displaying Port Statistics 200
- Displaying Aggregator Details 205
- 6.8.3 802.3ad System Screen 208
- 6.9.1 Setting the Threshold 211
- 6.9.2 Setting the Reset Peak 212
- Screen Navigation Path 213
- SPANNING TREE CONFIGURATION 217
- 40461_06 230
- Menu Item Screen Function 233
- 8.3.1 Creating a Static VLAN 236
- 8.3.3 Renaming a Static VLAN 237
- 8.3.4 Deleting a Static VLAN 237
- 36502_05 246
- 8.7.1 Changing the Port Mode 248
- Classification Rule 250
- 8.8.4 Deleting Line Items 262
- command field 266
- 100%, as shown 279
- 9.7.2.1 Solving the Problem 301
- 9.8.1 Configuring a Port 307
- 11.2 SWITCH STATISTICS SCREEN 324
- Interface Statistics Screen 328
- 11.4 RMON STATISTICS SCREEN 330
- RMON Statistics Screen 333
- Network Tools Screens 337
- HSIM-A6DP or VHSIM2-A6DP 339
- 12.2 BUILT-IN COMMANDS 340
- Examples: 341
- Built-in Commands 342
- 12-6 Network Tools Screens 342
- Network Tools Screens 12-7 343
- 12-8 Network Tools Screens 344
- Network Tools Screens 12-9 345
- 12-10 Network Tools Screens 346
- Network Tools Screens 12-11 347
- 12-12 Network Tools Screens 348
- Network Tools Screens 12-13 349
- 12-14 Network Tools Screens 350
- Network Tools Screens 12-15 351
- 12-16 Network Tools Screens 352
- Network Tools Screens 12-17 353
- 12-18 Network Tools Screens 354
- Network Tools Screens 12-19 355
- 12-20 Network Tools Screens 356
- Network Tools Screens 12-21 357
- (Contiued) 358
- Network Tools Screens 12-23 359
- 12-24 Network Tools Screens 360
- Network Tools Screens 12-25 361
- (Cont’d) 362
- Network Tools Screens 12-27 363
- 12-28 Network Tools Screens 364
- Network Tools Screens 12-29 365
- 12-30 Network Tools Screens 366
- Network Tools Screens 12-31 367
- 12-32 Network Tools Screens 368
- 12-34 Network Tools Screens 370
- Network Tools Screens 12-35 371
- 12-36 Network Tools Screens 372
- Network Tools Screens 12-37 373
- 12-38 Network Tools Screens 374
- Network Tools Screens 12-39 375
- Solving the Problem 376
- 12.5 SPECIAL COMMANDS 377
- Special Commands 378
- 12-42 Network Tools Screens 378
- 13.1 DEFINING VLANs 380
- 22631-01 381
- Member of Sales Network 381
- Member of Finance Network 381
- 13.2 TYPES OF VLANs 382
- 13.2.1 802.1Q VLANs 382
- 13.2.2 Other VLAN Strategies 382
- 13.4 VLAN TERMS 383
- 13.5 VLAN OPERATION 385
- 13.5.1 Description 385
- 13.5.2 VLAN Components 385
- Stations 385
- Switches 386
- 13.6 CONFIGURATION PROCESS 386
- 13.6.1 Defining a VLAN 386
- Untagged Frames 388
- Tagged Frames 388
- 13.7.2 Forwarding Decisions 388
- 13.7.2.2 Known Unicasts 389
- 13.8 VLAN CONFIGURATION 389
- 13.8.1 Managing the Switch 389
- 13.8.2 Switch Without VLANs 389
- 802.1Q Switch 390
- 40462_95 393
- 13.10 QUICK VLAN WALKTHROUGH 394
- Quick VLAN Walkthrough 396
- 13.11 EXAMPLES 399
- • For the Red VLAN 400
- • For the Blue VLAN 400
- VLAN ID 002 401
- VLAN ID 003VLAN ID 002 401
- VLAN ID 003 401
- 13.12.2 Frame Handling 402
- User 802.1D Legacy Bridge 403
- File Server 403
- 802.1Q VLAN Aware Switch 403
- 13.13.1 Solving the Problem 404
- Switch 4 404
- Switch 2 405
- • Port 3 is set as follows: 406
- • Egress: Port 2: TAGGED 406
- • Port 2 is set as follows: 406
- 13.13.2 Frame Handling 407
- Bridge 1 Bridge 2 408
- Bridge 3 408
- Bridge 4 408
- Port 25 Port 25 410
- TO SUBNET 411
- 13.15.1 Solving the Problem 412
- Switch 1 412
- CLASSIFICATION RULES 414
- 13.17.1 Solving the Problem 414
- A.1 OPERATION 417
- A.2 HOW IT WORKS 418
- About IGMP 419
- B-2 About IGMP 420
- Detecting Multicast Routers 421
- About IGMP B-3 421
- Numerics 423
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