Allied-telesis AT 8000/8POE User Manual Page 162
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Chapter 12: Rapid Spanning Tree Protocol (RSTP)
162 Section I: Using the Menus Interface
switch’s root port and the root bridge including the switch’s root port
cost.
Time Since Topology Change
The time in seconds since the last topology change took place. When
RSTP detects a change to the LAN’s topology or when the switch is
rebooted, this parameter is reset to 0 seconds and begins
incrementing until the next topology change is detected.
Topology Change Count
An integer that reflects the number of times RSTP has detected a
topology change on the LAN since the switch was initially powered on
or rebooted.
The following parameters refer to the designated root bridge:
Designated Root
This parameter includes two fields: the root bridge priority and the
MAC address of the root bridge. For example, 1000 00C08F1211BB
shows the root bridge priority as 1000, and 00C08F1211BB as the
MAC address.
Hello Time
The hello time. See “Hello Time and Bridge Protocol Data Units
(BPDUs)” on page 157. This parameter affects only the root bridge.
Maximum Age
The maximum amount of time that BPDUs are stored before being
deleted on the root bridge.
Forward Delay
The time interval between generating and sending configuration
messages by the root bridge.
The following parameters refer to the switch.
Bridge ID
The MAC address of the bridge. The bridge identifier is use as a tie
breaker in the selection of the root bridge when two or more bridges
have the same bridge priority. You cannot change this setting.
Bridge Hello Time
This is the time interval between generating and sending configuration
messages by the bridge. This parameter is active only when the switch
is the root bridge.
Bridge Maximum Age
The length of time after which stored bridge protocol data units
(BPDUs) are deleted by the bridge.
Bridge Forward Delay
This is the time interval between generating and sending configuration
messages by the bridge.
- AT-8000/8POE 1
- Contents 3
- “Safety Symbols” on page 14 13
- Safety Symbols 14
- Contacting Allied Telesis 15
- Using the Menus Interface 17
- Overview 19
- Management Overview 20
- Local Connection 21
- Remote Connection 22
- Management Access Level 23
- Chapter 1: Overview 24
- Interface 25
- Enter system location> 37
- Enter system contact> 37
- Enter current password> 40
- Enter old password> 40
- Enter new password> 40
- Retype new password> 41
- Viewing Switch Information 47
- Hardware Information Section 48
- Client” on page 35 49
- Rebooting the Switch 50
- Enter new timeout value> 53
- Figure 14. Ping Results 54
- Chapter 4: Port Configuration 62
- Enabling and Disabling a Port 64
- Enter new mode for port 65
- (a/h/H/F/f/t/T)> 65
- > (E/D)> 67
- Chapter 5 71
- SNMP Overview 72
- Default SNMP 73
- Community 73
- Chapter 5: SNMP 74
- Enabling Authentication Traps 75
- Enter read community name> 76
- Modifying a Trap 78
- Receiver 78
- Deleting a Trap 79
- Port Trunking Overview 82
- LACP Trunks 84
- Chapter 6: Port Trunking 88
- Set trunk group 91
- status (A/P/M/D)> 91
- Enter trunk group number> 96
- Port Mirroring Overview 98
- Mirroring” on page 101 100
- Chapter 7: Port Mirroring 102
- Power Over Ethernet 103
- PoE Overview 104
- Prioritization for 105
- Power Allocation 105
- PoE Device 105
- Configuring PoE 107
- Changing the 108
- PoE Port’s 108
- Admin Setting 108
- Setting the PoE 109
- Port’s Priority 109
- Virtual LANs and GVRP 111
- VLAN Features 112
- VLAN Overview 114
- Incoming and 115
- Outgoing Tagged 115
- Guidelines for 116
- Creating a VLAN 116
- Tagged VLAN 119
- Working with VLANS 121
- Configuring the 124
- Port PVID 124
- Restricting 125
- Management 125
- VLAN Access 125
- Displaying the 126
- Modifying a 128
- Enter VLAN ID > 129
- Resetting to the 130
- Default VLAN 130
- Enabling or 132
- Disabling GVRP 132
- Quality of Service (QoS) 133
- QoS Overview 134
- Enter traffic class> 139
- Configuring CoS 140
- IGMP Snooping 145
- IGMP Snooping Overview 146
- Configuring IGMP 148
- Viewing the Multicast Groups 150
- Chapter 11: IGMP Snooping 152
- Chapter 12 153
- RSTP Overview 154
- Path Costs and Port Costs 155
- Port Priority 156
- Point-to-Point and Edge Ports 158
- Mixed STP and 159
- RSTP Networks 159
- Rapid Spanning 160
- Tree and VLANs 160
- Enabling or Disabling RSTP 161
- Enter bridge priority> 164
- Enter bridge hello time> 164
- Enter bridge maximum age> 164
- Configuring STP Compatibility 166
- Basic RSTP Port 167
- Settings 167
- Advanced RSTP 169
- Port Settings 169
- Displaying the RSTP Topology 172
- 802.1x Network Access Control 175
- Authentication 177
- Authenticator 177
- Network Access 180
- Guidelines 180
- Enter port number> 184
- Enter NAS ID > 184
- Chapter 14 189
- RADIUS Overview 190
- Configuring the RADIUS Server 192
- Broadcast Storm Control 195
- MAC Address Tables 199
- MAC Address Overview 200
- MAC Addresses 202
- Setting the Age-Out Time 206
- Working With System Files 207
- Enter file name> 210
- Enter retry count> 210
- Download file? (Y/N)> 210
- Uploading the 211
- Configuration 211
- Downloading a 213
- Section II 215
- Chapter 18 217
- Switch’s IP Address 218
- Web Browser Tools 221
- Basic Switch Parameters 223
- 3. Click Apply 228
- Configuring SNTP 234
- Viewing System Information 235
- Hardware Information Section: 236
- Section: 236
- DHCP Mode 237
- Client” on page 226 237
- Rebooting a Switch 238
- Pinging a Remote System 239
- 3. Click Start 240
- Working with the System Log 241
- Sending the 243
- System Log to a 243
- Remote Server 243
- Port Configuration 245
- Displaying Port Statistics 252
- Chapter 21 255
- Chapter 21: SNMP 256
- Working with Trap Receivers 258
- 2. Click Restore 259
- Port Trunking 261
- Setting Up a Port Trunk 262
- Modifying a Port 263
- Disabling a Port 264
- Setting Up an LACP Trunk 265
- LACP Port 266
- Priority 266
- Viewing the 267
- LACP Group 267
- Disabling an 267
- LACP Trunk 267
- Port Mirroring 269
- Configuring Port Mirroring 270
- Disabling Port Mirroring 271
- Chapter 23: Port Mirroring 272
- Virtual LANs 277
- Chapter 25: Virtual LANs 280
- Displaying the VLANs 282
- Modifying a VLAN 285
- Deleting a VLAN 287
- Deleting All VLANs 288
- Enabling or Disabling GVRP 289
- Chapter 27 295
- Chapter 27: IGMP 298
- Chapter 28 299
- Chapter 28: RSTP 300
- Basic RSTP Configuration 301
- 5. Click Apply 305
- Viewing the RSTP Topology 306
- Chapter 30 311
- Configuring the RADIUS Client 312
- Setting the Aging Time 321
- Section III 329
- Formatting 333
- Conventions 333
- User EXEC 334
- Command Mode 334
- Privileged EXEC 335
- Port Mirroring Example 339
- VLAN Example 341
- Command Formatting 343
- AT-8000/POE Default Settings 345
- Basic Switch Default Settings 346
- SNMP Default Settings 348
- Status Enabled 349
- Mode Auto 349
- Flow Ctrl Enabled 349
- Quality of Service 350
- RSTP Default Settings 352
- Settings Default 354
- Server IP Address 0.0.0.0 354
- Response Time 10 seconds 354
- Maximum Retransmissions 3 354
- Threshold Low 355
- 356 Section: Reference 356
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