Planet WGSD-10020 Manuel d'utilisateur Page 135
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User’s Manual of WGSD-10020 Series
4.7 Spanning Tree Protocol
4.7.1 Theory
The Spanning Tree protocol can be used to detect and disable network loops, and to provide backup links between switches,
bridges or routers. This allows the switch to interact with other bridging devices in your network to ensure that only one route
exists between any two stations on the network, and provide backup links which automatically take over when a primary link
goes down. The spanning tree algorithms supported by this switch include these versions:
STP – Spanning Tree Protocol (IEEE 802.1D)
RSTP – Rapid Spanning Tree Protocol (IEEE 802.1w)
MSTP – Multiple Spanning Tree Protocol (IEEE 802.1s)
The IEEE 802.1D Spanning Tree Protocol and IEEE 802.1w Rapid Spanning Tree Protocol allow for the blocking of links
between switches that form loops within the network. When multiple links between switches are detected, a primary link is
established. Duplicated links are blocked from use and become standby links. The protocol allows for the duplicate links to be
used in the event of a failure of the primary link. Once the Spanning Tree Protocol is configured and enabled, primary links are
established and duplicated links are blocked automatically. The reactivation of the blocked links (at the time of a primary link
failure) is also accomplished automatically without operator intervention.
This automatic network reconfiguration provides maximum uptime to network users. However, the concepts of the Spanning
Tree Algorithm and protocol are a complicated and complex subject and must be fully researched and understood. It is possible
to cause serious degradation of the performance of the network if the Spanning Tree is incorrectly configured. Please read the
following before making any changes from the default values.
The Switch STP performs the following functions:
Creates a single spanning tree from any combination of switching or bridging elements.
Creates multiple spanning trees – from any combination of ports contained within a single switch, in user specified
groups.
Automatically reconfigures the spanning tree to compensate for the failure, addition, or removal of any element in
the tree.
Reconfigures the spanning tree without operator intervention.
Bridge Protocol Data Units
For STP to arrive at a stable network topology, the following information is used:
The unique switch identifier
The path cost to the root associated with each switch port
The port identifier
STP communicates between switches on the network using Bridge Protocol Data Units (BPDUs). Each BPDU contains the
following information:
The unique identifier of the switch that the transmitting switch currently believes is the root switch
The path cost to the root from the transmitting port
The port identifier of the transmitting port
135
- TABLE OF CONETNTS 3
- 1. INTRODUTION 20
- 1.3 How to Use This Manual 22
- 1.4 Product Features 23
- 1.5 Product Specification 26
- - Port Number 27
- 2. INSTALLATION 29
- 2.1.2 LED Indications 30
- 2.1.3 Switch Rear Panel 32
- 2.2 Install the Switch 33
- 2.2.2 Rack Mounting 34
- 3. SWITCH MANAGEMENT 38
- 3.3 Administration Console 39
- Direct Access 40
- 3.4 Web Management 41
- 4. WEB CONFIGURATION 43
- 4.1 Main Web Page 46
- 4.2 System 48
- 4.2.1 System Information 49
- 4.2.2 IP Configuration 50
- 4.2.3 IPv6 Configuration 51
- 4.2.4 Users Configuration 52
- 4.2.5 Privilege Levels 55
- 4.2.6 NTP Configuration 57
- 4.2.7 UPnP 58
- 4.2.8 DHCP Relay 59
- 4.2.9 DHCP Relay Statistics 61
- 4.2.10 CPU Load 63
- 4.2.11 System Log 64
- 4.2.12 Detailed Log 65
- 4.2.13 Remote Syslog 66
- 4.2.14 LED Power Reduction 67
- 4.2.15 EEE Power Reduction 68
- 4.2.16 Thermal Protection 69
- 4.2.17 Web Firmware Upgrade 70
- 4.2.18 TFTP Firmware Upgrade 71
- 4.2.19 Configuration Backup 72
- 4.2.20 Configuration Upload 74
- 4.2.21 Factory Default 75
- 4.2.21 System Reboot 76
- 4.3.1 SNMP Overview 78
- 4.3.4 SNMPv3 Configuration 82
- 4.3.4.2 SNMPv3 Users 83
- 4.3.4.3 SNMPv3 Groups 85
- 4.3.4.4 SNMPv3 Views 86
- 4.3.4.5 SNMPv3 Access 87
- 4.4 Port Management 89
- 4.4.4 Port Statistics Detail 92
- 4.4.5 SFP Information 95
- 1000Base-SX 95
- 1000Base-LX 95
- 100Base-FX 95
- 4.4.6 Port Mirror 96
- Buttons 98
- : Click to save changes 98
- 4.5 Link Aggregation 99
- 4.5.1 Static Aggregation 101
- 4.5.2 LACP Configuration 103
- 4.5.3 LACP System Status 104
- 4.5.4 LACP Port Status 105
- 4.5.5 LACP Port Statistics 106
- 4.6 VLAN 107
- 4.6.2 IEEE 802.1Q VLAN 108
- ■ 802.1Q VLAN Tags 109
- 4.6.3 VLAN Basic Information 111
- 4.6.5 VLAN Membership 116
- 4.6.6 VLAN Membership Status 117
- 4.6.7 VLAN Port Status 119
- 4.6.8 Private VLAN 120
- 4.6.9 Port Isolation 121
- 4.6.10 VLAN setting example: 123
- 4.6.10.3 Port Isolate 128
- 4.6.11 MAC-based VLAN 130
- 4.6.12 MAC-based VLAN Status 131
- 4.6.13 Protocol-based VLAN 132
- 4.7 Spanning Tree Protocol 135
- 4.7.3 Bridge Status 143
- 4.7.5 MSTI Priorities 147
- 4.7.6 MSTI Configuration 147
- Configuration Identification 148
- MSTx MSTI Port Configuration 150
- 4.7.8 Port Status 151
- 4.7.9 Port Statistics 152
- 4.8 Multicast 154
- Type Response Time 156
- 4.8.5 IGMP Snooping Status 161
- 4.8.6 IGMP Group Information 163
- 4.8.7 IGMPv3 Information 163
- 4.8.11 MLD Snooping Status 168
- 4.8.12 MLD Group Information 170
- 4.8.13 MLDv2 Information 170
- 4.8.14 MVR 171
- 4.8.15 MVR Status 173
- 4.9 Quality of Service 175
- 4.9.2 Port Policing 176
- 4.9.3 Port Classification 177
- 4.9.4 Port Scheduler 179
- 4.9.5 Port Shaping 180
- 4.9.6 Port Tag Remarking 182
- 4.9.7 Port DSCP 183
- 4.9.8 DSCP-Based QoS 185
- 4.9.9 DSCP Translation 187
- 4.9.10 DSCP Classification 190
- 4.9.11 QoS Control List 191
- 4.9.12 QoS Status 195
- 4.9.14 QoS Statistics 197
- 4.9.16 Voice VLAN OUI Table 200
- 4.10 Access Control Lists 201
- 4.10.3 ACE Configuration 204
- MAC Parameters 206
- IPv4 frame 209
- ICMP Parameters 210
- TCP/UDP Parameters 211
- Ethernet Type Parameters 212
- 4.11 Authentication 216
- System Configuration 222
- Port Configuration 225
- Port State 233
- Port Counters 234
- Selected Counters 237
- Attached MAC Address 238
- 4.11.7 RADIUS Overview 243
- 4.11.8 RADIUS Details 244
- RADIUS Accounting Servers 248
- 4.12 Security 259
- 4.12.2 Access Management 262
- 4.12.4 HTTPs 264
- 4.12.5 SSH 265
- 4.12.6 Port Security Status 266
- Port Status 267
- 4.12.7 Port Security Detail 268
- 4.12.8 DHCP Snooping 269
- 4.12.12 ARP Inspection 273
- 4.13 Address Table 276
- 4.14 LLDP 282
- 4.14.3 LLDPMED Configuration 285
- Coordinates Location 286
- Civic Address Location 287
- F RFC 2474) 288
- Port Policies Configuration 290
- 4.14.4 LLDP-MED Neighbor 291
- 4.14.5 Neighbor 294
- 4.14.6 Port Statistics 296
- 4.14.7 Port Statistics 297
- 4.15 Network Diagnostics 300
- 4.15.2 IPv6 Ping 301
- 4.15.3 Remote IP Ping Test 302
- 4.15.4 Cable Diagnostics 303
- 4.16.2 Power Configuration 306
- 4.16.3 Port Configuration 309
- 4.16.4 PoE Status 311
- 4.16.5 PoE Schedule 312
- 4.16.6 LLDP PoE Neighbours 314
- 4.16.7 PD Alvie-check 315
- 5. COMMAND LINE INTERFACE 317
- Configure IP address 318
- 5.2 Telnet Login 320
- 6. Command Line Mode 321
- Example: 329
- 6.2 IP Command 330
- 6.7 Security Command 363
- Security Network ACL Delete 411
- 6.9 Link Aggregation Command 444
- 6.11 LLDP Command 451
- LLDP Info 456
- 6.12 LLDPMED Command 457
- LLDPMED ECS 458
- LLDPMED Port Policy 460
- 6.13 EEE Command 463
- 6.15 Thermal Command 469
- 6.16 LED Power Command 471
- QoS QCL Delete 490
- 6.18 Mirror Command 493
- 6.19 Configuration Command 495
- 6.20 Firmware Command 496
- 6.21 UPnP Command 498
- 6.22 MVR Command 500
- 6.23 Voice VLAN Command 504
- 6.24 IPMC Command 511
- IPMC Parameter URI 521
- 7. SWITCH OPERATION 527
- 7.5 Auto-Negotiation 528
- What is PoE? 529
- The PoE Provision Process 531
- Classification 532
- Start-up 532
- Operation 532
- 9. TROUBLE SHOOTING 534
- APPENDEX A 536
- 12345678 537
- APPENDEX B : GLOSSARY 538
- EC Declaration of Conformity 556
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