H3c-technologies H3C WX5500E Series Access Controllers Manuel d'utilisateur Page 96
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Noté. / 5. Basé sur avis des utilisateurs
85
Ste
p
Command
Remarks
1. Enter system view.
system-view N/A
2. Enable the spanning tree
feature globally.
stp enable
By default, the spanning tree
feature is globally disabled.
3. Enable the spanning tree
feature on specific
VLANs.
stp vlan vlan-list enable
By default, the spanning tree
feature is enabled on VLANs.
4. Enter interface view or
port group view.
• Enter Layer 2 Ethernet interface view or
Layer 2 aggregate interface view:
interface interface-type interface-number
• Enter port group view:
port-group manual port-group-name
Use one of the commands.
5. Enable the spanning tree
feature for the port or
group of ports.
stp enable
Optional.
By default, the spanning tree
feature is enabled on all ports.
Performing mCheck
If a port on a device that is running MSTP, RSTP, or PVST connects to an STP device, this port automatically
migrates to the STP mode. However, it cannot automatically transition back to the original mode when:
• The STP device is shut down or removed.
• The STP device transitions to the MSTP, RSTP, or PVST mode.
For example, Device A is running STP, Device B has no spanning tree feature enabled, and Device C is
running RSTP, MSTP, or PVST are connected in order. Device B will transparently transmit STP BPDUs, and
the port on Device C and connecting to Device B will transition to the STP mode. After you enable the
spanning tree feature on Device B, to run RSTP or MSTP between Device B and Device C, you must
perform an mCheck operation on the ports interconnecting Device B and Device C, in addition to
configuring the spanning tree to operate in RSTP, MSTP, or PVST mode on Device B.
To forcibly transition the port to operate in the original mode, you can perform an mCheck operation. An
mCheck operation takes effect on a device that operates in MSTP, RSTP, or PVST mode.
The following methods for performing mCheck produce the same result.
Performing mCheck globally
Ste
p
Command
1. Enter system view.
system-view
2. Perform mCheck.
stp mcheck
Performing mCheck in interface view
Ste
p
Command
1. Enter system view.
system-view
- H3C WX5540E Access Controller 1
- Switching Engine 1
- Preface 3
- Symbols 4
- Network topology icons 4
- Port numbering in examples 4
- Obtaining documentation 5
- Technical support 5
- Documentation feedback 5
- Contents 6
- Switch A Switch B 14
- Switch C 14
- Enabling auto power-down 17
- Bulk configuring interfaces 30
- Configuring MAC Information 39
- Operational key 44
- Configuration classes 44
- Reference port 44
- Link aggregation modes 45
- Choosing a reference port 46
- Configuring port isolation 63
- STP protocol packets 65
- Basic concepts in STP 66
- Path cost 67
- STP timers 71
- MSTP features 73
- MSTP basic concepts 73
- MST region 74
- Regional root 75
- Common root bridge 75
- Port roles 75
- How MSTP works 76
- STP configuration task list 78
- RSTP configuration task list 79
- PVST configuration task list 80
- MSTP configuration task list 81
- Configuring an MST region 82
- Configuring edge ports 89
- Performing mCheck 96
- Configuring digest snooping 97
- <DeviceB> system-view 99
- Configuration prerequisites 100
- Configuration procedure 100
- Configuration example 101
- Enabling BPDU guard 101
- Enabling root guard 102
- Enabling loop guard 102
- Enabling TC-BPDU guard 103
- Enabling BPDU drop 104
- MSTP configuration example 105
- PVST configuration example 109
- Configuring BPDU tunneling 113
- Enabling BPDU tunneling 116
- Network requirements 117
- Configuring VLANs 120
- VLAN frame encapsulation 121
- VLAN types 122
- Protocols and standards 122
- Configuring port-based VLANs 125
- Frame handling on a port 126
- Verifying the configuration 130
- Configuring MAC-based VLANs 131
- Configuration considerations 136
- Configuration guidelines 142
- Task Command 143
- Remarks 143
- Configuring super VLANs 144
- Name: VLAN 0005 148
- Tagged Ports: none 148
- Untagged Ports: 148
- Configuring voice VLANs 158
- VLAN assignment mode 162
- Configuring GVRP 169
- GARP timers 170
- GARP PDU format 171
- Introduction to GVRP 172
- GVRP registration modes 172
- GVRP configuration task list 173
- Configuring GVRP functions 173
- Configuring the GARP timers 174
- GVRP configuration examples 176
- Configuring LLDP 181
- LLDPDUs 182
- LLDP-MED TLVs 184
- Working mechanism 185
- LLDP configuration task list 186
- Enabling LLDP polling 188
- Configuring LLDP trapping 193
- LLDP configuration examples 194
- Overview 199
- Configuring MVRP 203
- MRP messages 204
- MRP timers 205
- MVRP configuration task list 206
- Enabling MVRP 207
- Configuring MRP timers 208
- Enabling GVRP compatibility 209
- Configuring Device B 212
- Configuring Device C 213
- Configuring Device D 214
- 1(default), 10 219
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