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Chapter 25 Spanning Tree Protocol
IES-1248-51V User’s Guide
203
RSTP assigns three port states to eliminate packet looping while STP assigns five
(see Table 51 on page 203). A device port is not allowed to go directly from
blocking state to forwarding state so as to eliminate transient loops.
See the IEEE 802.1w standard for more information on RSTP. See the IEEE 802.1D
standard for more information on STP.
Table 51 RSTP Port States
RSTP PORT STATE STP PORT STATE DESCRIPTION
Discarding Disabled RSTP or STP is disabled (default).
Discarding Blocking In RSTP, BPDUs are discarded.
In STP, only configuration and
management BPDUs are received and
processed.
Discarding Listening In RSTP, BPDUs are discarded.
In STP, all BPDUs are received and
processed.
Learning Learning All BPDUs are received and processed.
Information frames are submitted to the
learning process but not forwarded.
Forwarding Forwarding All BPDUs are received and processed. All
information frames are received and
forwarded.
- IES-1248-51V 1
- About This User's Guide 3
- Customer Support 4
- Document Conventions 5
- Icons Used in Figures 6
- Internet 6
- Safety Warnings 7
- Contents Overview 11
- Contents Overview 12
- Table of Contents 13
- Chapter 65 27
- Chapter 66 28
- Chapter 67 29
- Chapter 68 29
- Table of Contents 31
- Introduction 33
- CHAPTER 1 35
- 1.2 MDU Application 36
- 1.3 System Description 37
- Stacking 38
- Integrated Splitters 38
- Console Port 38
- IP Protocols 38
- 1.4 VoIP Features 41
- Quality of Service (QoS) 42
- Out-of-Band POTS Signaling 42
- Call Progress Tones 42
- Analog Modem Pass-through 43
- Fax Pass-through 43
- DTMF Relay 43
- Country Code 43
- Metallic Line Test 43
- 1.5 Technical Reference 45
- CHAPTER 2 47
- 2.3 Installation Scenarios 49
- Figure 8 Rack Mounting 51
- CHAPTER 3 53
- 3.1.2 Front Panel LEDs 54
- 3.3 SFP Mini GBIC Slots 55
- 3.3.2 Transceiver Removal 57
- 3.4 Console Port Connection 58
- 3.5 ALARM Connections 58
- 3.6 ADSL Connections 58
- CHAPTER 4 61
- 4.3 Telco-50 Cables 62
- Chapter 4 MDF Connections 63
- Chapter 4 MDF Connections 64
- CHAPTER 5 65
- Chapter 5 Power Connections 66
- CHAPTER 6 67
- Chapter 6 Fan Maintenance 68
- 5 Tighten the thumbscrew 68
- Basic Settings 69
- CHAPTER 7 71
- Figure 21 Login 72
- Figure 22 Home 72
- 7.4 Navigation Panel 73
- 7.5 Changing Your Password 76
- Figure 24 User Account 77
- Figure 25 Logout 78
- CHAPTER 8 79
- Figure 26 IP Setup 80
- Figure 27 xDSL Port Setup 81
- Figure 28 VC Setup 81
- Figure 29 VC Setup, Delete 82
- Figure 30 Select Ports 82
- Figure 31 VC Setup 82
- Figure 32 VC Setup 83
- Figure 33 Select Ports 83
- Figure 34 VC Setup 84
- Figure 35 Config Save 84
- Chapter 8 Tutorials 88
- CHAPTER 9 89
- Table 7 Home (continued) 90
- CHAPTER 10 97
- Figure 45 System Info 98
- Table 11 System Info 98
- Figure 46 System Info 99
- Table 12 System Info 100
- CHAPTER 11 101
- Table 13 General Setup 102
- CHAPTER 12 103
- Chapter 12 User Account 104
- IES-1248-51V User’s Guide 104
- LABEL DESCRIPTION 104
- 12.2 Authentication Screen 105
- CHAPTER 13 107
- 13.3 Switch Setup Screen 110
- Chapter 13 Switch Setup 111
- Chapter 13 Switch Setup 112
- CHAPTER 14 113
- Chapter 14 IP Setup 114
- Chapter 14 IP Setup 115
- CHAPTER 15 117
- Chapter 15 ENET Port Setup 118
- CHAPTER 16 119
- 16.4 Interleave Delay 120
- 16.6 Default Settings 121
- 16.7 xDSL Port Setup Screen 121
- Table 20 xDSL Port Setup 122
- Figure 56 Select Ports 122
- Chapter 16 xDSL Port Setup 123
- Figure 57 xDSL Port Setting 124
- Table 21 xDSL Port Setting 124
- Chapter 16 xDSL Port Setup 126
- 16.8 Virtual Channels 128
- 16.9 VC Setup Screen 129
- Figure 60 Select Ports 132
- 16.10 Priority-based PVCs 133
- 16.11 PPVC Setup Screen 134
- Figure 63 PPVC Setup, Edit 136
- Table 25 PPVC Setup, Edit 136
- CHAPTER 17 139
- Table 26 Port Profile 140
- 17.2 ATM QoS 142
- 17.3 Traffic Shaping 142
- 17.3.2 Traffic Parameters 143
- 17.4 Upstream Policing 145
- 17.5 VC Profile Screen 146
- 17.6 Alarm Profile Screen 148
- Table 28 Alarm Profile 149
- CHAPTER 18 151
- Chapter 18 xDSL Line Data 152
- 18.2 xDSL Line Data Screen 153
- Figure 70 xDSL Line Data 154
- Table 30 xDSL Line Data 154
- 18.3 xDSL Performance Screen 155
- Figure 71 xDSL Performance 156
- Table 31 xDSL Performance 156
- Chapter 18 xDSL Line Data 157
- 18.4 G.Bond Screen 158
- Table 32 Port > G.bond 160
- PART III 161
- CHAPTER 19 163
- 19.3 VLAN Status Screen 165
- Chapter 19 VLAN 166
- Figure 76 VLAN Port Setting 169
- Table 35 VLAN Port Setting 169
- Figure 77 Select Ports 170
- CHAPTER 20 171
- 20.2.2 IGMP Proxy 172
- VID=1 VID=2 173
- 20.3 IGMP Status Screen 174
- Chapter 20 IGMP 175
- 20.4 IGMP Bandwidth Screen 176
- Chapter 20 IGMP 178
- 20.6 Config Screen 179
- 20.7 IGMP Filter Screen 180
- 20.8 IGMP Port Group Screen 182
- 20.9 IGMP Port Info Screen 183
- 20.10 IGMP Count Screen 184
- Figure 87 IGMP Count 185
- Table 43 IGMP Count 185
- CHAPTER 21 187
- Table 44 Static Multicast 188
- CHAPTER 22 189
- 22.2 MVLAN Status Screen 190
- 22.3 MVLAN Setup Screen 191
- Chapter 22 Multicast VLAN 192
- 22.4 MVLAN Group Screen 193
- CHAPTER 23 195
- Table 48 Packet Filter 196
- Chapter 23 Packet Filtering 197
- Chapter 23 Packet Filtering 198
- CHAPTER 24 199
- Table 49 MAC Filter 200
- CHAPTER 25 201
- Table 51 RSTP Port States 203
- CHAPTER 26 209
- 26.2 RADIUS Screen 210
- 26.3 802.1x Screen 212
- Table 55 802.1x (continued) 213
- CHAPTER 27 215
- Figure 101 Select Ports 216
- CHAPTER 28 217
- 28.2.2 TR-101 Format 218
- 28.3 DHCP Relay Screen 219
- Table 61 DHCP Relay 220
- Chapter 28 DHCP Relay 221
- Chapter 28 DHCP Relay 222
- CHAPTER 29 223
- 29.2 DHCP Snoop Screen 224
- Table 63 DHCP Snoop Status 226
- 29.4 DHCP Counter Screen 227
- Chapter 29 DHCP Snoop 228
- CHAPTER 30 229
- 30.2 2684 Routed PVC Screen 230
- Figure 107 2684 Routed PVC 231
- Table 65 2684 Routed PVC 231
- Table 66 2684 Routed Domain 233
- 30.4 RPVC Arp Proxy Screen 234
- Table 67 RPVC Arp Proxy 235
- Chapter 30 2684 Routed Mode 236
- CHAPTER 31 237
- 31.2 PPPoA to PPPoE Screen 238
- Chapter 31 PPPoA to PPPoE 239
- Chapter 31 PPPoA to PPPoE 240
- CHAPTER 32 243
- 32.3 DSCP Map Screen 244
- Table 72 DSCP Map 245
- Chapter 32 DSCP 246
- CHAPTER 33 247
- 33.2 TLS PVC Screen 248
- Chapter 33 TLS PVC 249
- Chapter 33 TLS PVC 250
- CHAPTER 34 251
- 34.1.2 ACL Profile Actions 252
- 34.2 ACL Setup Screen 253
- Chapter 34 ACL 254
- 34.3 ACL Profile Screen 255
- Table 75 ACL Profile 256
- 34.4 ACL Profile Map Screen 257
- CHAPTER 35 259
- CHAPTER 36 261
- Chapter 36 Syslog 262
- CHAPTER 37 263
- 37.3 SNMP 264
- 37.3.1 Supported MIBs 265
- 37.3.2 SNMP Traps 266
- Chapter 37 Access Control 267
- TRAP NAME DESCRIPTION 267
- 37.4 SNMP Screen 268
- Table 82 SNMP 269
- Chapter 37 Access Control 272
- CHAPTER 38 273
- 38.1.2 IP Bridge Settings 275
- 38.1.2.1 Domains and VLAN 276
- 38.1.2.2 Edge Routers 276
- 38.1.2.3 Downlink Interfaces 276
- 38.1.2.4 Routing Tables 277
- 38.1.2.5 PVCs 277
- 38.1.2.6 ARP Proxy Settings 277
- 38.2 IPB PVC Screen 278
- Chapter 38 IP Bridge 279
- 38.3 IPB Domain Screen 280
- Figure 131 IPB Domain 281
- Table 87 IPB Domain 281
- Table 88 IPB Domain (Edit) 282
- 38.4 IPB Edge Router Screen 284
- Section 38.2 on page 278 287
- Table 91 Current Interfaces 288
- Table 92 IPB Routing Table 289
- Chapter 38 IP Bridge 290
- 38.6.1 Current Routes Screen 291
- 38.7 IPB ARP Proxy Screen 293
- CHAPTER 39 295
- 39.1.0.2 TR-101 Format 296
- CHAPTER 40 299
- Chapter 40 Maximum MTU Size 300
- CHAPTER 41 301
- Chapter 41 PVC Upstream Limit 302
- CHAPTER 42 303
- Chapter 42 OUI Filter 304
- Table 103 OUI Filter 304
- Routing Protocol 305
- Alarm, VoIP and 305
- Management 305
- CHAPTER 43 307
- Chapter 43 Static Routing 308
- CHAPTER 44 309
- 44.3 Alarm Descriptions 310
- Chapter 44 Alarm 313
- Table 107 Alarm Event Setup 314
- 44.5 Alarm Port Setup Screen 316
- CHAPTER 45 317
- 45.1.2 Termination 318
- 45.1.3 H.248 Commands 319
- 45.1.5 RTP 321
- 45.1.6 Voice Coding 321
- 45.2 VoIP Port Setup Screens 323
- 45.2.1 Port View Screen 324
- Chapter 45 VoIP 325
- 45.2.2 Port Edit Screen 326
- 45.2.3 General Screen 328
- Chapter 45 VoIP 330
- 45.3 H.248 Profile Screen 331
- 45.4 DSP Profile Screen 333
- 45.5 Media Gateway Screen 335
- 45.7 Diagnostic Screens 339
- 45.7.2 MLT Relay 342
- CHAPTER 46 343
- Figure 160 Firmware Upgrade 344
- 46.5 Load Factory Defaults 345
- 46.6 Reboot System 346
- 46.7 Command Line FTP 346
- CHAPTER 47 347
- Table 121 Diagnostic 348
- Chapter 47 Diagnostic 349
- 47.2 Log Format 350
- LOG MESSAGE TYPE DESCRIPTION 351
- 47.3 LDM Test Parameters 352
- 47.4 ToneDiag Parameters 353
- Chapter 47 Diagnostic 354
- CHAPTER 48 355
- 48.2 MAC Table Screen 356
- Chapter 48 MAC Table 357
- Chapter 48 MAC Table 358
- CHAPTER 49 359
- 49.2 ARP Table Screen 360
- Commands 361
- Troubleshooting 361
- CHAPTER 50 363
- 50.2 Logging in 364
- 50.3 Command Conventions 365
- Copy and Paste Commands 366
- 50.7 Logging Out 368
- CHAPTER 51 369
- 51.2 IP Status 370
- 51.3 Configuration Status 371
- 51.4 Reset to Defaults 371
- 51.5 Port and VLAN Isolation 372
- Chapter 51 Common Commands 374
- 51.7 Statistics Port Command 375
- CHAPTER 52 377
- Chapter 52 System Commands 378
- COMMAND DESCRIPTION P 378
- 52.1.3 Logs Command Examples 381
- 52.1.3.2 Log Messages 382
- Chapter 52 System Commands 383
- 52.1.4 Clearing the Log 384
- CHAPTER 53 385
- 53.2 Alarm Commands 386
- Chapter 53 Alarm Commands 387
- Chapter 53 Alarm Commands 388
- 53.2.5 Log Format 389
- CHAPTER 54 393
- Chapter 54 DHCP Commands 394
- 54.2.1 Show Command Example 395
- command 398
- 54.6 DHCP Snoop Commands 400
- Chapter 54 DHCP Commands 401
- CHAPTER 55 405
- Chapter 55 OUI Filter 408
- CHAPTER 56 409
- 56.5 GARP Timer Commands 416
- 56.6 Isolation Commands 416
- CHAPTER 57 419
- 57.2 MAC Count Commands 421
- Chapter 57 MAC Commands 423
- Chapter 57 MAC Commands 424
- CHAPTER 58 425
- 58.2 IGMP Filter Commands 426
- 58.3 IGMP Bandwidth Commands 428
- 1~100000, in units of kbps 429
- 58.8 Multicast VLAN Commands 433
- Chapter 58 IGMP Commands 434
- CHAPTER 59 437
- CHAPTER 60 441
- 60.2 DSCP Commands 442
- 60.3 Ethernet Commands 442
- 60.4 Queuemap Commands 443
- 60.5 RSTP Commands 443
- 60.7 RMON Command 445
- CHAPTER 61 447
- Chapter 61 IP Commands 448
- CHAPTER 62 451
- Chapter 62 IP Bridge Commands 452
- ------------------ 456
- 192.168.1.244/24 401 456
- 62.6 IP Bridge PVC Commands 462
- CHAPTER 63 467
- Table 182 SNMP Commands 468
- CHAPTER 64 469
- 64.2 ADSL Commands 470
- Chapter 64 ADSL Commands 471
- Chapter 64 ADSL Commands 472
- 64.3 ADSL Profile Commands 481
- ADSL port 1 500
- Table 191 ToneDiag Command 501
- 64.5 Alarm Profile Commands 503
- ADSL alarm profile mapping: 509
- CHAPTER 65 511
- 65.1.2 G.Bond Show Example 512
- Chapter 65 G.Bond 514
- CHAPTER 66 515
- 66.3 PVC Channels 518
- 66.4 Priority-based PVCs 519
- Table 197 PPVC Commands 520
- Table 198 RPVC Commands 522
- Table 199 PAEPVC Commands 528
- Table 200 TLS Commands 532
- 66.8 IP Bridge PVC Commands 533
- CHAPTER 67 535
- Chapter 67 ACL Commands 536
- Table 203 ACL Commands 537
- 67.2 ACL Assignment Commands 539
- CHAPTER 68 541
- Chapter 68 VoIP Commands 543
- Chapter 68 VoIP Commands 544
- 68.5 voip ip Commands 548
- 68.6 voip port Commands 549
- Table 212 voip dsp Commands 551
- 30 90 echotail 32 554
- 68.9 voip h248 mg Commands 559
- CHAPTER 69 561
- 69.4 Firmware File Upgrade 565
- CHAPTER 70 567
- 70.6 DSL Data Transmission 569
- 70.9 Local Server 571
- 70.10 Data Rate 572
- 70.11 Configured Settings 572
- 70.12 Password 572
- 70.13 System Lockout 572
- 70.14 SNMP 573
- 70.15 Telnet 573
- 70.16 Resetting the Defaults 574
- Chapter 70 Troubleshooting 577
- 51V restarts 577
- Chapter 70 Troubleshooting 578
- CHAPTER 71 579
- Storage Environment 581
- Certification 581
- Environmental Specifications 581
- 71.2 VoIP Features 582
- 71.3 Default Settings 583
- 71.4 Limitations 585
- Table 233 Limitations 586
- 71.5 Pin Assignments 587
- PORT NUMBER PIN NUMBER 588
- 71.5.2 Telco-50 Cables 589
- Pin 2: TXD Pin 2 591
- Pin 3: RXD Pin 3 591
- Pin 4: GND Pin 5 591
- PIN DESCRIPTION 592
- Appendices and 593
- APPENDIX A 595
- Appendix A Changing a Fuse 596
- APPENDIX B 597
- Meter parameters: 598
- Caller ID parameters: 598
- Tones parameters: 598
- Ring parameters: 599
- Pulse parameters: 599
- Czech Republic 607
- The Netherlands 615
- Switzerland 623
- United Kingdom 625
- Australia 629
- New Zealand 631
- Numerics 645
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