Users Guide

Table Of Contents
RPVST+
show spanning-tree vlan
VLAN ID RPVST+
show spanning-tree vlan vlan-id
vlan vlan-id VLAN ID 1 4093
EXEC
使
OS10# show spanning-tree
Spanning tree enabled protocol rapid-pvst
VLAN 1
Executing IEEE compatible Spanning Tree Protocol
Root ID Priority 32769, Address 74e6.e2f5.bb80
Root Bridge hello time 2, max age 20, forward delay 15
Bridge ID Priority 32769, Address 74e6.e2f5.bb80
We are the root of VLAN 1
Configured hello time 2, max age 20, forward delay 15
Interface Designated
Name PortID Prio Cost Sts Cost Bridge ID PortID
----------------------------------------------------------------------------
ethernet1/1/1 128.260 128 200000000 FWD 0 32769 0000.0000.0000 128.260
ethernet1/1/2 128.264 128 200000000 FWD 0 32769 0000.0000.0000 128.264
ethernet1/1/3 128.268 128 200000000 FWD 0 32769 0000.0000.0000 128.268
ethernet1/1/4 128.272 128 200000000 FWD 0 32769 0000.0000.0000 128.272
ethernet1/1/5 128.276 128 200000000 FWD 0 32769 0000.0000.0000 128.276
ethernet1/1/6 128.280 128 200000000 FWD 0 32769 0000.0000.0000 128.280
ethernet1/1/7 128.284 128 200000000 FWD 0 32769 0000.0000.0000 128.284
ethernet1/1/8 128.288 128 200000000 FWD 0 32769 0000.0000.0000 128.288
ethernet1/1/9 128.292 128 200000000 FWD 0 32769 0000.0000.0000 128.292
ethernet1/1/10 128.296 128 200000000 FWD 0 32769 0000.0000.0000 128.296
ethernet1/1/11 128.300 128 200000000 FWD 0 32769 0000.0000.0000 128.300
ethernet1/1/12 128.304 128 200000000 FWD 0 32769 0000.0000.0000 128.304
10.2.0E or later
spanning-tree vlan cost
VLAN PVST
spanning-tree vlan vlan-id cost {value}
value PVST 1 200000000
100 Mb/s = 200000
1 Gb = 20000
10 Gb = 2000
100 Mb/s = 200000
1 Gb = 20000
10 Gb = 2000
1 Gb = 18000
10 Gb = 1800
100 Mbps = 180000
INTERFACE
使 LAN STP
2 423