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BayStack 450 10/100/1000 Series Switches
302401-D Rev 00
1-37
VLANs Spanning Multiple Switches
You can use VLANs to segment a network within a switch. When connecting
multiple switches, it is possible to connect users of one VLAN with users of that
same VLAN in another switch. However, the configuration guidelines depend on
whether both switches support 802.1Q tagging.
With 802.1Q tagging enabled on a port for a VLAN, all frames leaving the port for
that VLAN are marked as belonging to that specific VLAN. You can assign
specific switch ports as members of one or more VLANs that span multiple
switches, without interfering with the spanning tree protocol.
VLANS Spanning Multiple 802.1Q Tagged Switches
Figure 1-21
shows VLANs spanning two BayStack 450 switches. The 802.1Q
tagging is enabled on S1, port 2 and on S2, port 1 for VLAN 1 and VLAN 2. Both
ports are tagged members of VLAN 1 and VLAN 2.
Figure 1-21. VLANs Spanning Multiple 802.1Q Tagged Switches
VLAN 1
S1
S2
VLAN 2
BayStack 450-24T
Both ports are tagged
members of VLAN 1
and VLAN 2
BayStack 450-24T
B45015A
kombk.book Page 37 Tuesday, June 29, 1999 3:25 PM
- Using the BayStack 450 1
- 10/100/1000 Series Switch 1
- Trademarks 2
- Statement of Conditions 2
- USA Requirements Only 2
- European Requirements Only 2
- Taiwan Requirements 3
- Canada Requirements Only 3
- Contents 7
- 302401-D Rev 00 10
- Audience 21
- Organization 22
- Text Conventions 23
- Acronyms 23
- Related Publications 24
- How to Get Help 25
- Chapter 1 27
- Front Panel 28
- 10BASE-T/100BASE-TX Ports 29
- 100BASE-FX MT-RJ Ports 30
- 450-12T Switch 31
- 450-24T Switch 31
- Back Panel 34
- Features 37
- IEEE 802.1p Prioritizing 40
- IEEE 802.1Q VLANs 40
- IGMP Snooping Feature 41
- Flash Memory Storage 41
- MultiLink Trunking 42
- Port Mirroring 42
- Network Configuration 44
- Desktop Switch Application 45
- Segment Switch Application 46
- CPU PS1 PS2FAN 47
- Fail-Safe Stack Application 48
- Stack Operation 49
- Cascade A Out 50
- Cascade A InUnit Select 50
- Base Unit 51
- Stack Configurations 53
- IEEE 802.1Q VLAN Workgroups 58
- IEEE 802.1Q Tagging 59
- Shared Servers 66
- (Port Name is 70
- VLAN Workgroup Summary 71
- VLAN Configuration Rules 73
- IGMP Snooping 74
- MultiLink Trunks 83
- Before Configuring Trunks 95
- 100
- Chapter 2 109
- Figure 2-1. Package Contents 110
- Installation Procedure 111
- Caution: 112
- Connecting Power 120
- Cascade Module 121
- Redundant Power 121
- 100-240V 121
- 47-63Hz~ 121
- Verifying the Installation 122
- Cascade SRAM test 123
- Initial Setup 125
- Figure 2-13. Main Menu 126
- Stack Setup 128
- Chapter 3 133
- Using the Console Interface 133
- Main Menu 136
- (continued) 138
- (continued) 138
- IP Configuration/Setup 140
- Choosing a BootP Request Mode 142
- BootP Always 143
- BootP Disabled 143
- BootP or Last Address 144
- SNMP Configuration 145
- Link Up 146
- Link Down 146
- System Characteristics 147
- Switch Configuration 150
- MAC Address Table 152
- VLAN Configuration Menu 154
- Table 3-7 describes the 155
- Port Configuration 164
- MultiLink Trunk Configuration 169
- Table 3-14 describes the 170
- Table 3-16 describes the 175
- Port Mirroring Configuration 177
- Table 3-17 describes the 178
- Table 3-18. Monitoring Modes 179
- Rate Limiting Configuration 180
- IGMP Configuration 183
- Port Statistics 186
- Renumber Stack Units 197
- Hardware Unit Information 199
- Spanning Tree Configuration 199
- TELNET Configuration 207
- Accesses 208
- Failures: 208
- Software Download 210
- Configuration File 214
- Requirements 215
- Display Event Log 217
- Excessive Bad Entries 218
- Write Threshold 218
- Flash Update 219
- Reset to Default Settings 222
- Chapter 4 227
- Troubleshooting 227
- Interpreting the LEDs 228
- 450-12F Switch 229
- Warning: 231
- Normal Power-Up Sequence 232
- Port Connection Problems 233
- Appendix A 237
- Technical Specifications 237
- Physical Dimensions 238
- Performance Specifications 238
- Data Rate 238
- Interface Options 239
- Safety Agency Certification 239
- Electromagnetic Emissions 239
- Electromagnetic Immunity 239
- Declaration of Conformity 240
- Appendix B 241
- Transmit Characteristics 242
- Receive Characteristics 243
- 1000BASE-LX Models 244
- Appendix C 247
- Media Dependent Adapters 247
- 400-4TX MDA 248
- 100BASE-FX MDAs 249
- 400-2FX MDA 250
- 400-4FX MDA 250
- 1000BASE-SX MDAs 252
- 450-1SR MDA 253
- 450-1SX MDA 253
- M1000BASE-LX MDAs 255
- 450-1LX MDA 256
- 450-1LR MDA 256
- Installing an MDA 257
- Appendix D 261
- Quick Steps to Features 261
- Configuring 802.1Q VLANs 262
- Configuring MultiLink Trunks 264
- Configuring Port Mirroring 265
- Configuring IGMP Snooping 267
- Appendix E 271
- MDI and MDI-X Devices 272
- Appendix F 277
- Default Settings 277
- VLAN number 278
- Appendix G 283
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