Show Command to see RPVST+ details of all VLANs in CatOS?

manmp · ‎04-16-2010

Hi All,

I needed the show command to see the tree structure for all VLANs in CatOS switch running RPVST+. Please can someone help me with this? Below command gives only VLAN1, any single command to give the below details for all VLANs? Need it ASAP.

show spantree active

VLAN 1
Spanning tree mode RAPID-PVST+
Spanning tree type ieee
Spanning tree enabled

Designated Root             00-09-11-3b-78-00
Designated Root Priority    8192
Designated Root Cost        1852
Designated Root Port        1/2,2/2 (agPort 14/1)
Root Max Age   20 sec   Hello Time 2 sec   Forward Delay 15 sec

Bridge ID MAC ADDR          00-07-ec-6c-38-00
Bridge ID Priority          49152
Bridge Max Age 20 sec   Hello Time 2 sec   Forward Delay 15 sec

Port                     State         Role Cost      Prio Type
------------------------ ------------- ---- --------- ---- --------------------
1/1,2/1                  blocking      ALTR      1851   32 P2P
1/2,2/2                  forwarding    ROOT      1851   32 P2P

Giuseppe Larosa · ‎04-16-2010

Hello Manmp,

sh spantree vlan#

provides details of STP on a specific vlan

I don't remember a commmand to see STP for all vlans on CatOS

try sh spantree ?

to see the possible options

for sure with no options only vlan1 info is shown

Hope to help

Giuseppe

manmp · ‎04-16-2010

Thanks Giuseppe.

I could get following options for "show spantree ?" :

active                     Show active ports in spanning tree
backbonefast               Show spanning tree backbone fast
blockedports               Show ports that are blocked
bpdu-filter                Show spanning tree bpdu-filter information
bpdu-guard                 Show spanning tree bpdu-guard information
bpdu-skewing               Show spanning tree bpdu skewing statistics
conflicts                  Show spanning tree conflicting info for vlan
debug                      Show spanning tree bpdu information
defaultcostmode            Show spanning tree port cost mode
guard                      Show spanning tree guard info
mapping                    Show spanning tree vlan and instance mapping
mistp-instance             Show spantree info for MISTP instance
mst                        Show MST information
portfast                   Show spanning tree port fast info
portinstancecost           Show spanning tree port instance cost
portvlancost               Show spanning tree port vlan cost
statistics                 Show spanning tree statistic info
summary                    Show spanning tree summary
uplinkfast                 Show spanning tree uplink fast
                 Module number and Port number(s)
                     VLAN number for PVST+/RAPID-PVST+
|                          Output modifiers

I think such a command is not available :-( Let me know your views..yeah as u said i get only VLAN1 without any options...

Giuseppe Larosa · ‎04-16-2010

Hello Manmp,

>>

yes this matches with my idea you can get sh spantree one vlan per time

sh spantree 100

shows vlan 100

sh spantree 101

shows STP for vlan 101

and so on

Hope to help

Giuseppe