HP 3500 Series Advanced Traffic Management Manual page 188

Multiple Instance Spanning-Tree Operation
STP Loop Guard
HP Switch(config)# show spanning-tree
Multiple Spanning Tree (MST) Information
STP Enabled
Force Version : MSTP-operation
IST Mapped VLANs : 1-4094
Switch MAC Address : 0024a8-d13a40
Switch Priority
Max Age : 20
Max Hops : 20
Forward Delay : 15
Topology Change Count
Time Since Last Change : 20 mins
CST Root MAC Address : 001083-847000
CST Root Priority
CST Root Path Cost
CST Root Port
IST Regional Root MAC Address : 0024a8-d13a40
IST Regional Root Priority
IST Regional Root Path Cost
IST Remaining Hops
Root Guard Ports
Loop Guard Ports
TCN Guard Ports
BPDU Protected Ports :
BPDU Filtered Ports
PVST Protected Ports :
PVST Filtered Ports
Port Type
------ --------- + --------- ---- ------------ + ------------- ---- --- ----
1 100/1000T | 20000
2 100/1000T | Auto
3 100/1000T | Auto
4 100/1000T | Auto
5 100/1000T | Auto
6 100/1000T | Auto
7 100/1000T | Auto
8 100/1000T | Auto
Figure 3-40. Example of Spanning-tree with Port 2 Configured as the loop-guard Port
3-80
: Yes
: 32768
: 1
: 0
: 60000
: 1
: 32768
: 0
: 20
:
: 2
:
:
:
| Prio
| Cost rity State
128
128
128
128
128
128
128
128
The Spanning Tree configuration is shown in Figure 3-41.
Port 2 is configured as the Loop Guard port.
| Designated
| Bridge
Forwarding | 001871-cdea00 2
Inconsistent |
Disabled |
Disabled |
Disabled |
Disabled |
Disabled |
Disabled |
Hello
Time PtP Edge
Yes No