Catalyst 9500 Rapid pvst cost

[Srin_G]

Hi,

I have connected 2 pairs of Cisco 9500 in a L2 etherchannel. The STP cost to the root pair 9500 is showing 1000? Is this right?

I am testing this in the lab at the moment. Any ideas why the cost is showing high? The optics are 10Gbps.

Regards

[MHM Cisco World · Accepted solution]

friend there are two mode of cost 
short (OLD)
and long 
as I see you use long cost mode. 
for more info. check link below 
https://packetlife.net/blog/2008/sep/5/spanning-tree-port-costs/

[Srin_G]

Thank you, I checked and the default path cost method for cat9500 is long indeed!

[MHM Cisco World]

You are so so welcome