ZyXEL Communications GS3700 Series Guida Utente Pagina 252
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GS3700/XGS3700 Series User’s Guide 252
CHAPTER 27
Layer 2 Protocol Tunneling
This chapter shows you how to configure layer-2 protocol tunneling on the Switch.
27.1 Layer 2 Protocol Tunneling Overview
Layer-2 protocol tunneling (L2PT) is used on the service provider's edge devices. L2PT allows edge
switches (1 and 2 in the following figure) to tunnel layer-2 STP (Spanning Tree Protocol), CDP
(Cisco Discovery Protocol) and VTP (VLAN Trunking Protocol) packets between customer switches
(A, B and C in the following figure) connected through the service provider’s network. The edge
switch encapsulates layer-2 protocol packets with a specific MAC address before sending them
across the service provider’s network to other edge switches.
Figure 155 Layer-2 Protocol Tunneling Network Scenario
In the following example, if you enable L2PT for STP, you can have switches A, B, C and D in the
same spanning tree, even though switch A is not directly connected to switches B, C and D.
Topology change information can be propagated throughout the service provider’s network.
1
2
A
C
Service Provider's
Network
STP
CDP
B
VTP
STP
VTP
CDP
- GS3700/XGS3700 Series 1
- User’s Guide 1
- IMPORTANT! 2
- READ CAREFULLY BEFORE USE 2
- Related Documentation 2
- Contents Overview 3
- Chapter 22 10
- Chapter 23 10
- Table of Contents 11
- Table of Contents 12
- CHAPTER 1 21
- 1.1.5 IPv6 Support 24
- CHAPTER 2 27
- 2.3.1 Precautions 28
- CHAPTER 3 31
- 3.1.1 Ethernet Ports 32
- 3.1.2 SFP/SFP+ Slots 33
- 3.1.3 Management Port 34
- 3.1.4 Console Port 34
- 3.2 Rear Panel 35
- 3.3 LEDs 36
- Chapter 3 Hardware Overview 37
- Table 3 LEDs (continued) 37
- LED COLOR STATUS DESCRIPTION 37
- Chapter 3 Hardware Overview 38
- CHAPTER 4 39
- LINK DESCRIPTION 43
- 4.5 Switch Lockout 45
- 4.6 Resetting the Switch 46
- 4.8 Help 47
- Technical Reference 49
- CHAPTER 5 51
- Table 6 Status 52
- CHAPTER 6 56
- Chapter 6 Basic Setting 57
- 6.2 General Setup 58
- 6.3 Introduction to VLANs 59
- 6.4 Switch Setup 60
- 6.5 IP Setup 62
- 6.6 Port Setup 64
- 6.7 PoE 66
- 6.7.1 PoE Setup 68
- 6.8 Interface Setup 70
- 6.9 IPv6 71
- 6.9.1 IPv6 Interface Status 73
- Chapter 6 Basic Setting 74
- 6.9.2 IPv6 Configuration 75
- 6.9.3 IPv6 Global Setup 76
- 6.9.4 IPv6 Interface Setup 77
- 6.9.9 IPv6 Prefix Setup 82
- 6.9.10 IPv6 Neighbor Setup 84
- 6.9.11 DHCPv6 Client Setup 85
- CHAPTER 7 87
- 7.2.1 GARP 88
- 7.2.2 GVRP 88
- 7.3 Port VLAN Trunking 89
- 7.4 Select the VLAN Type 89
- 7.5 802.1Q Static VLAN 89
- 7.5.1 VLAN Status 90
- 7.5.2 VLAN Details 91
- 7.5.5 Subnet Based VLANs 95
- 7.5.6 Protocol Based VLANs 97
- Chapter 7 VLAN 102
- Chapter 7 VLAN 103
- LABEL DESCRIPTION 104
- CHAPTER 8 105
- CHAPTER 9 107
- CHAPTER 10 110
- Chapter 10 Filtering 111
- CHAPTER 11 112
- 11.1.2 How STP Works 113
- 11.1.3 STP Port States 113
- 11.1.4 Multiple RSTP 113
- 11.1.5 Multiple STP 114
- 11.1.5.3 MST Instance 116
- CHAPTER 12 130
- 12.2 Bandwidth Control Setup 131
- Chapter 12 Bandwidth Control 132
- CHAPTER 13 133
- CHAPTER 14 135
- Single-Destination RMirror 136
- Multi-Destination RMirror 136
- Port Rules in Port Mirroring 137
- 14.1.1 Local Port Mirroring 138
- 14.1.2 Remote Port Mirroring 139
- 14.1.3 Source 139
- 14.1.4 Destination 141
- 14.1.5 Connected Port 142
- CHAPTER 15 144
- 15.2.1 Link Aggregation ID 145
- Chapter 15 Link Aggregation 146
- Aggregation 149
- Control 149
- Protocol 149
- 15.6 Static Trunking Example 150
- CHAPTER 16 152
- 16.1.2 MAC Authentication 153
- 16.2.2 Guest VLAN 156
- Internet 156
- CHAPTER 17 160
- 17.3 VLAN MAC Address Limit 162
- CHAPTER 18 163
- 18.4 Classifier Example 168
- CHAPTER 19 169
- Chapter 19 Policy Rule 171
- 19.4 Policy Example 173
- CHAPTER 20 174
- 20.2 Configuring Queuing 175
- CHAPTER 21 177
- Access Port 178
- 21.3 VLAN Tag Format 179
- 21.4.1 Port-based Q-in-Q 181
- 21.4.2 Selective Q-in-Q 182
- Chapter 21 VLAN Stacking 183
- CHAPTER 22 184
- 22.1.3 IGMP Snooping 185
- 22.1.5 MLD Snooping-Proxy 185
- 22.2 Multicast Setup 186
- 22.3 IPv4 Multicast Status 187
- 22.3.1 IGMP Snooping 188
- Chapter 22 Multicast 190
- 22.3.2 IGMP Snooping VLAN 191
- 22.4 IPv6 Multicast Status 193
- 22.4.1 MLD Snooping-proxy 194
- 22.5 MVR Overview 201
- 22.5.3 How MVR Works 202
- News: 224.1.4.10 ~ 224.1.4.50 206
- Movie: 230.1.2.50 ~230.1.2.60 206
- CHAPTER 23 209
- 23.2 AAA Screens 210
- Chapter 23 AAA 212
- 23.2.3 AAA Setup 215
- Chapter 23 AAA 221
- CHAPTER 24 222
- 24.1.2.3 Syslog 225
- 24.2 IP Source Guard 226
- Chapter 24 IP Source Guard 228
- 24.4 DHCP Snooping 229
- 24.5 DHCP Snooping Configure 231
- 24.6 ARP Inspection Status 236
- Chapter 24 IP Source Guard 243
- CHAPTER 25 244
- 25.2 Loop Guard Setup 246
- Chapter 25 Loop Guard 247
- CHAPTER 26 248
- 26.2 Enabling VLAN Mapping 249
- Chapter 26 VLAN Mapping 251
- CHAPTER 27 252
- CHAPTER 28 256
- Chapter 28 sFlow 259
- CHAPTER 29 260
- 29.1.3 Port State 261
- 29.2 The PPPoE Screen 262
- 29.3.1 PPPoE IA Per-Port 264
- Chapter 29 PPPoE 265
- 29.3.3 PPPoE IA for VLAN 267
- CHAPTER 30 268
- Detect screen 269
- Chapter 30 Error Disable 272
- CHAPTER 31 273
- CHAPTER 32 275
- 32.1.1 Configuration 277
- CHAPTER 33 279
- CHAPTER 34 281
- Chapter 34 Static Route 283
- CHAPTER 35 286
- Chapter 35 Policy Routing 289
- CHAPTER 36 290
- 36.3 Activating DiffServ 292
- 36.3.2 DSCP Profile 295
- CHAPTER 37 298
- 37.3 DHCPv4 Status 299
- 37.4 DHCPv4 Relay 300
- 37.4.1.2 Sub-Option Format 301
- 192.168.1.100 310
- 172.16.10.100 310
- 37.6 DHCPv6 Relay 311
- Chapter 37 DHCP 312
- CHAPTER 38 313
- 38.2 VRRP Status 314
- 38.3 VRRP Configuration 314
- 38.3.2 VRRP Parameters 316
- 38.3.4 Viewing VRRP Summary 318
- 172.16.1.100 319
- 172.16.1.1 319
- 172.16.1.10 319
- 38.4.2 Two Subnets Example 320
- CHAPTER 39 322
- Chapter 39 Load Sharing 323
- CHAPTER 40 324
- 40.1.2.2 Gratuitous-ARP 325
- 40.1.2.3 ARP-Request 325
- 40.2 ARP Setup 326
- 40.2.1 ARP Learning 327
- 40.2.2 Static ARP 328
- Chapter 40 ARP Setup 329
- Chapter 40 ARP Setup 330
- CHAPTER 41 331
- 41.2 Load Factory Default 332
- 41.3 Save Configuration 332
- 41.4 Reboot System 332
- 41.5 Firmware Upgrade 333
- 41.8 FTP Command Line 335
- 41.8.3 GUI-based FTP Clients 336
- 41.8.4 FTP Restrictions 336
- CHAPTER 42 337
- 42.3.1 SNMP v3 and Security 338
- 42.3.2 Supported MIBs 339
- 42.3.3 SNMP Traps 339
- 42.3.4 Configuring SNMP 343
- 42.5 SSH Overview 349
- 42.6 How SSH works 350
- 42.8 Introduction to HTTPS 351
- 42.9 HTTPS Example 352
- Chapter 42 Access Control 354
- 42.9.3 The Main Screen 356
- CHAPTER 43 360
- Chapter 43 Diagnostic 361
- CHAPTER 44 362
- 44.2 Syslog Setup 363
- 44.3 Syslog Server Setup 364
- CHAPTER 45 365
- Chapter 45 Cluster Management 370
- CHAPTER 46 371
- 46.2 Viewing the MAC Table 372
- Chapter 46 MAC Table 373
- CHAPTER 47 374
- 47.2 Viewing the IP Table 375
- CHAPTER 48 376
- 48.2 The ARP Table Screen 377
- CHAPTER 49 378
- CHAPTER 50 379
- CHAPTER 51 380
- Chapter 51 Configure Clone 381
- CHAPTER 52 382
- Chapter 52 Neighbor Table 383
- Chapter 52 Neighbor Table 384
- CHAPTER 53 385
- 53.2 Switch Access and Login 386
- 53.3 Switch Configuration 388
- APPENDIX A 389
- Appendix A Common Services 390
- Appendix A Common Services 391
- APPENDIX B 393
- Global Address 394
- Unspecified Address 394
- Loopback Address 394
- Multicast Address 394
- Subnet Masking 395
- Interface ID 395
- Stateless Autoconfiguration 395
- Identity Association 396
- DHCP Relay Agent 396
- Prefix Delegation 397
- IPv6 Cache 397
- Multicast Listener Discovery 398
- MLD Messages 398
- Appendix B IPv6 402
- APPENDIX C 403
- ZyXEL Limited Warranty 404
- Open Source Licenses 404
- Safety Warnings 404
- Appendix C Legal Information 405
- Appendix C Legal Information 406
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