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New Member

Spanning Tree Fine Tuning advise Needed

I have a NIC teaming setup. 2 NIC cards, NIC-1 connected to SW-1, NIC-2 connected to SW-2.

SW-1 & SW-2 are up-linked together(not stack). The NIC ports are hard coded as access, spanning-tree port-fast.

Teaming works fine under normal conditions.

When I remove NIC-2, Teaming is normal with just one packet drop, but when I put back the NIC-2, there are 5-10 packet drops.

 

I believe I need to fine tune the spanning tree further. Please advise, what settings I need to define on access/uplink ports.

3 REPLIES

Hi,What's your STP mode on

Hi,

What's your STP mode on SW1 and SW2?

 

Houtan

New Member

I have just hard coded up

I have just hard coded up-links as trunk, nothing is defined about the spanning tree protocol.

Please advise on the right settings.

Ok, By default cisco switches

Ok, By default cisco switches use PVST as their default STP method, as first step change STP mode to rapid-pvst on both switches.

Report the result, I think it solve your problem.

SW(config)#spanning-tree mode rapid-pvst

 

HTH 

Houtan

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