spantree question for HP Procurve

I have about 50 HP procurve switches on my network, no cisco. The core is already set as root spantree. Is there a best practice for applying spantree for the other 49 switches. Do you start from Core out or furthest to core back in?

thanx
officertangoAsked:
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JustInCaseCommented:
No need to change STP priority on other switches except on two switches that you want as your primary and secondary root bridge.
Other configuration guidance would be that a spanning tree should have no more than seven bridge hops.

Configure ports to end devices with
spanning-tree x admin-edge-port
spanning-tree x bpdu-protection

Trunks should be configured with
no spanning-tree x admin-edge-port

If you want faster convergence enable rstp.
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officertangoAuthor Commented:
I only have spantree enabled on the core but enabled on the other 49 hp switches. So I want to go back and enabled them but do nit know where to enabled first, closest to core switch or furthest first. When I enabled stp, how ling will users be down? Thanx
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JustInCaseCommented:
Default convergence time for STP is up to 50 seconds. 30 seconds for listening and learning phases + up to 20 seconds for max age timer. I believe direction does not really matter, but I guess users would be less affected if you go from edge of network in core direction (although from core to edge of network sounds more logical).
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Don JohnstonInstructorCommented:
You would want to enable from the core outward (assuming the core has already been configured with a lower priority).  In other words, enable spanning-tree on switches that are connected to switches which have spanning-tree enabled.  

That will reduce the convergence since the root bridge will not change while you enable spanning-tree on the switches.
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marek1712Commented:
Also little suggestion - set priorities properly and pick Edge/Nonedge ports. Otherwise you'll see tons of TCNs and possible service disruptions.
LINK
There was also nice article on the HP's website which of course doesn't work after company's split.
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officertangoAuthor Commented:
do you have command for edge/nonedge port setting?
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JustInCaseCommented:
I already gave you those in the first post here, just did not explain why. :)
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