Failed to set hello time for spantree 350 on switch 6500

[w.wichatrong]

hello

when i set up vlan350 is a root bridge on switch 6500.

why failed mesg shown when i enter this command below.

kor-dc2-65sw1> (enable) set spantree root 350

and failed mesg show:

Failed to set hello time for spantree 350.

Failed to set max aging time for spantree 350.

Failed to set forward delay for spantree 350.

thak you.

[Giuseppe Larosa]

Hello Worapun,

have you created vlan 350 before ?

sh vlan 350 what tells ?

Hope to help

Giuseppe

[w.wichatrong]

this is sh vlan 350

thank you

kor-dc2-65sw1> (enable) set spantree root 350

Failed to set hello time for spantree 350.

Failed to set max aging time for spantree 350.

Failed to set forward delay for spantree 350.

VLAN 350 bridge max aging time set to 20.

VLAN 350 bridge hello time set to 2.

VLAN 350 bridge forward delay set to 15.

Switch is now the root switch for active VLAN 350.

Switch is already the root switch for active VLAN 350.

kor-dc2-65sw1> (enable)

kor-dc2-65sw1> (enable) sh spantree 350

VLAN 350

Spanning tree mode RAPID-PVST+

Spanning tree type ieee

Spanning tree enabled

Designated Root 00-d0-02-0b-c5-5d

Designated Root Priority 1

Designated Root Cost 0

Designated Root Port 1/0

Root Max Age 20 sec Hello Time 2 sec Forward Delay 15 sec

Bridge ID MAC ADDR 00-d0-02-0b-c5-5d

Bridge ID Priority 1

Bridge Max Age 20 sec Hello Time 2 sec Forward Delay 15 sec

Port State Role Cost Prio Type

------------------------ ------------- ---- -------- ---- --------------------

3/10 forwarding DESG 3004 32 P2P, PEER(STP)

4/4 forwarding DESG 3004 32 P2P, PEER(STP)

[Giuseppe Larosa]

Hello Worapun,

I think this is caused by the fact that the switch was already the root bridge for vlan 350.

Everything looks like fine so probably you can ignore this.

Hope to help

Giuseppe

[lamav]

Worapun:

The forward delay, hello and maxage timers are set by default in STP. You dont need to set them. Per-vlan Spanning Tree (PVST+) is on by default on Cisco switches.

Hello is every 2 secs.

Forward Delay is 15 secs.

Max age is 20 secs.

These messages appeared because you were telling the switch to be the root bridge for vlan 350, but it already was, so no changes were made.

Try making another switch that is not the root the root for a particular vlan and see the results.

HTH

Victor