H3c-technologies H3C WX5500E Series Access Controllers Uživatelský manuál Strana 92
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Hodnocené. / 5. Na základě hodnocení zákazníků
81
Ste
p
Command
Remarks
2. 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.
3. Configure the path cost of the
ports.
• In STP/RSTP mode:
stp cost cost
• In PVST mode:
stp vlan vlan-list cost cost
• In MSTP mode:
stp [ instance instance-id ] cost cost
Use one of the commands.
By default, the system
automatically calculates the
path cost of each port.
Path cost configuration example
# In MSTP mode, specify the device to use IEEE 802.1d-1998 to calculate the default path costs of its ports,
and set the path cost of GigabitEthernet 1/0/3 to 200 on MSTI 2.
<Sysname> system-view
[Sysname] stp pathcost-standard dot1d-1998
[Sysname] interface gigabitethernet 1/0/3
[Sysname-GigabitEthernet1/0/3] stp instance 2 cost 200
# In PVST mode, specify the device to use IEEE 802.1d-1998 to calculate the default path costs of its ports,
and set the path cost of GigabitEthernet 1/0/3 to 2000 on VLANs 20 through 30.
<Sysname> system-view
[Sysname] stp mode pvst
[Sysname] stp pathcost-standard dot1d-1998
[Sysname] interface gigabitethernet 1/0/3
[Sysname-GigabitEthernet1/0/3] stp vlan 20 to 30 cost 2000
Configuring the port priority
The priority of a port is an important factor in determining whether the port can be elected as the root
port of a device. If all other conditions are the same, the port with the highest priority will be elected as
the root port.
On a spanning tree device, a port can have different priorities and play different roles in different
spanning trees, so that data from different VLANs can be propagated along different physical paths to
implement per-VLAN load balancing. You can set port priority values based on the actual networking
requirements.
If the port priority changes, the system recalculates the port role and initiates a state transition.
To configure the priority of a port or a group of ports:
Ste
p
Command
Remarks
1. Enter system view.
system-view N/A
- 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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