ZyXEL Communications P-335 PLUS - V3.60 Guía de usuario Pagina 133
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Chapter 13 Spanning Tree Protocol
XS1920 Series User’s Guide
133
• VLAN-to-MST Instance mapping
13.7.3 MST Instance
An MST Instance (MSTI) is a spanning tree instance. VLANs can be configured to run on a specific
MSTI. Each created MSTI is identified by a unique number (known as an MST ID) known internally
to a region. Thus an MSTI does not span across MST regions.
The following figure shows an example where there are two MST regions. Regions 1 and 2 have 2
spanning tree instances.
Figure 96 MSTIs in Different Regions
13.7.4 Common and Internal Spanning Tree (CIST)
A CIST represents the connectivity of the entire network and it is equivalent to a spanning tree in
an STP/RSTP. The CIST is the default MST instance (MSTID 0). Any VLANs that are not members of
an MST instance are members of the CIST. In an MSTP-enabled network, there is only one CIST
that runs between MST regions and single spanning tree devices. A network may contain multiple
MST regions and other network segments running RSTP.
Figure 97 MSTP and Legacy RSTP Network Example
- XS1920 Series 1
- User’s Guide 1
- IMPORTANT! 2
- READ CAREFULLY BEFORE USE 2
- Contents Overview 3
- Chapter 9 7
- Table of Contents 10
- XS1920 Series User’s Guide 10
- Table of Contents 11
- CHAPTER 1 18
- 1.1.2 Bridging Example 19
- CHAPTER 2 22
- CHAPTER 3 25
- 3.1.2 SFP/SFP+ Slots 26
- 3.1.2.2 Transceiver Removal 27
- 3.2 Rear Panel 28
- 3.3 LEDs 29
- Technical Reference 31
- CHAPTER 4 32
- 4.3 The Status Screen 33
- LINK DESCRIPTION 35
- 4.5 Switch Lockout 37
- 4.6 Resetting the Switch 38
- 4.8 Help 38
- CHAPTER 5 39
- 5.1.2 Setting Port VID 40
- 5.2 Configuring Switch 41
- Management IP Address 41
- CHAPTER 6 43
- 6.3.2 Creating a VLAN 47
- 6.3.3 Configuring DHCP Relay 49
- 6.3.4 Troubleshooting 50
- CHAPTER 7 51
- 7.3 Neighbor Screen 52
- 7.4 Port Status Summary 53
- CHAPTER 8 58
- 8.3 General Setup 60
- 8.4 Introduction to VLANs 62
- 8.5 Switch Setup Screen 63
- Chapter 8 Basic Setting 64
- 8.6 IP Setup 65
- Static IP Details 66
- Dynamic IP Details (DHCP) 66
- 8.6.3 IP Configuration 67
- 8.7 Port Setup 69
- 8.8 Interface Setup 71
- 8.9 IPv6 72
- 8.9.2 IPv6 Configuration 75
- 8.9.3 IPv6 Global Setup 76
- 8.9.4 IPv6 Interface Setup 76
- 8.9.9 IPv6 Prefix Setup 82
- 8.9.10 IPv6 Neighbor Setup 83
- 8.9.11 DHCPv6 Client Setup 84
- CHAPTER 9 86
- GARP Timers 87
- 9.1.2.2 Port VLAN Trunking 88
- 9.2 VLAN Status 89
- 9.2.1 VLAN Details 90
- 9.3 Private VLAN Status 91
- 9.4 VLAN Configuration 92
- 9.7 Subnet Based VLANs 96
- 9.8 Protocol Based VLANs 98
- 9.9 Voice VLAN 100
- LABEL DESCRIPTION 101
- 9.10 MAC-based VLAN 102
- 9.12 Port-based VLAN 104
- 9.13 Technical Reference 106
- Chapter 9 VLAN 107
- 3 Click Add 107
- CHAPTER 10 108
- CHAPTER 11 110
- CHAPTER 12 113
- Chapter 12 Filtering 114
- CHAPTER 13 115
- STP Terminology 116
- How STP Works 116
- STP Port States 117
- Multiple RSTP 117
- Multiple STP 117
- 13.7 Technical Reference 131
- 13.7.2 MST Region 132
- 13.7.3 MST Instance 133
- CHAPTER 14 134
- CHAPTER 15 136
- CHAPTER 16 138
- CHAPTER 17 140
- 17.2 Link Aggregation Status 141
- 17.5 Technical Reference 146
- Chapter 17 Link Aggregation 147
- CHAPTER 18 148
- 18.1.2 MAC Authentication 149
- 18.3.1 Guest VLAN 151
- Internet 152
- CHAPTER 19 156
- 19.3 VLAN MAC Address Limit 158
- Chapter 19 Port Security 159
- CHAPTER 20 160
- Chapter 20 Time Range 161
- CHAPTER 21 162
- Chapter 21 Classifier 164
- Chapter 21 Classifier 165
- 21.4 Classifier Example 169
- CHAPTER 22 171
- CHAPTER 23 175
- 23.2 Configuring Queuing 176
- CHAPTER 24 178
- IGMP Snooping and VLANs 179
- MLD Snooping-proxy 179
- MLD Messages 180
- MVR Overview 180
- Types of MVR Ports 181
- MVR Modes 181
- How MVR Works 181
- 24.2 Multicast Setup 182
- 24.3 IPv4 Multicast Status 182
- 24.3.1 IGMP Snooping 183
- Chapter 24 Multicast 184
- 24.4 IGMP Snooping VLAN 185
- 24.5 IPv6 Multicast Status 188
- 24.5.1 MLD Snooping-proxy 189
- News: 224.1.4.10 ~ 224.1.4.50 199
- Movie: 230.1.2.50 ~230.1.2.60 199
- CHAPTER 25 201
- 25.2 AAA Screens 202
- 25.3 RADIUS Server Setup 202
- 25.5 AAA Setup 206
- 25.6 Technical Reference 208
- VLAN Assignment 210
- VLAN ID 210
- CHAPTER 26 212
- 26.2 IP Source Guard 213
- 26.4 DHCP Snooping 215
- Chapter 26 IP Source Guard 217
- 26.6 ARP Inspection Status 223
- 26.10 Technical Reference 231
- 26.10.2.3 Syslog 234
- CHAPTER 27 235
- 27.2 Loop Guard Setup 237
- CHAPTER 28 239
- CHAPTER 29 243
- 29.1.2.2 Sub-Option Format 244
- 29.1.2.3 Port State 245
- 29.2 The PPPoE Screen 246
- 29.3.1 PPPoE IA Per-Port 247
- 29.3.3 PPPoE IA for VLAN 250
- Chapter 29 PPPoE 251
- CHAPTER 30 252
- Detect screen 254
- CHAPTER 31 258
- CHAPTER 32 260
- 32.1.1 Configuration 262
- CHAPTER 33 264
- CHAPTER 34 266
- 34.2 LLDP-MED Overview 267
- 34.3 LLDP Screens 268
- 34.4 LLDP Local Status 269
- 34.5 LLDP Remote Status 274
- Management 275
- (Dot1 and Dot3 TLV) 278
- (MED TLV) 279
- 34.6 LLDP Configuration 281
- 34.7 LLDP-MED Configuration 285
- 34.9 LLDP-MED Location 287
- CHAPTER 35 291
- Chapter 35 Static Route 295
- CHAPTER 36 296
- 36.2 Activating DiffServ 297
- CHAPTER 37 300
- 37.2 DHCP Configuration 301
- 37.3 DHCPv4 Status 302
- 37.4 DHCPv4 Relay 302
- 37.4.1.2 Sub-Option Format 303
- 192.168.1.100 310
- 172.16.10.100 310
- 37.6 DHCPv6 Relay 311
- Chapter 37 DHCP 312
- CHAPTER 38 313
- 38.1.2.2 Gratuitous-ARP 314
- 38.1.2.3 ARP-Request 314
- 38.2 ARP Setup 315
- 38.2.2 Static ARP 316
- CHAPTER 39 318
- 39.2.1 Firmware Upgrade 319
- 39.2.5 Save Configuration 322
- 39.2.6 Reboot System 322
- 39.2.7 Factory Default 322
- 39.3 Tech-Support 323
- 39.4 Technical Reference 324
- 39.4.4 GUI-based FTP Clients 325
- 39.4.5 FTP Restrictions 326
- CHAPTER 40 327
- 40.3 Configuring SNMP 328
- 40.7 Technical Reference 336
- SNMP v3 and Security 337
- Supported MIBs 337
- SNMP Traps 338
- 40.7.2 Introduction to HTTPS 339
- 40.7.2.1 HTTPS Example 340
- 40.7.2.2 The Main Screen 342
- CHAPTER 41 344
- Chapter 41 Diagnostic 345
- CHAPTER 42 346
- 42.3 Syslog Server Setup 347
- CHAPTER 43 349
- 43.1.1 What You Can Do 350
- Chapter 43 Cluster Management 352
- 43.4 Technical Reference 353
- CHAPTER 44 355
- Chapter 44 MAC Table 357
- CHAPTER 45 358
- 45.2 Viewing the IP Table 359
- CHAPTER 46 360
- CHAPTER 47 362
- CHAPTER 48 363
- CHAPTER 49 364
- Chapter 49 Configure Clone 366
- CHAPTER 50 367
- Chapter 50 Neighbor Table 368
- CHAPTER 51 369
- 51.2 Switch Access and Login 370
- 51.3 Switch Configuration 372
- APPENDIX A 373
- Australia 378
- South Africa 378
- APPENDIX B 379
- Appendix B Common Services 380
- Appendix B Common Services 381
- APPENDIX C 382
- Global Address 383
- Unspecified Address 383
- Loopback Address 383
- Multicast Address 383
- Subnet Masking 384
- Interface ID 384
- Stateless Autoconfiguration 384
- Identity Association 385
- DHCP Relay Agent 385
- Prefix Delegation 386
- IPv6 Cache 386
- APPENDIX D 390
- Safety Warnings 391
- Appendix D Legal Information 392
- Appendix D Legal Information 393
- Viewing Certifications 394
- ZyXEL Limited Warranty 394
- Open Source Licenses 394
- Numerics 395
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