HP Procurve Switch trunking

I have HP Porcurve 2510G switches.
I’d like to “trunk” 2 or more ports from one switch to the next.
My question is:
If I trunk ports 1&2 on switch A do I also need to “trunk” the corresponding ports on switch B?  
It seems to work with or without...

Thank you
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it_medcompAsked:
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jburgaardCommented:
Yes, you should configure same way in both ends
-that is (Non-protocol-)trunk to (Non-protocol-)trunk or
LACP to LACP
First configure, then connect in order to avoid network-loops.
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Rick_O_ShayCommented:
If you don't configure them as a trunk then you can end up with spanning tree issues at switch B because it looks at each link as an individual connection while switch A considers it a trunk between the two.

You should configure the remote ports with the same LACP, tagging and VLAN config as the local switch.
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TimotiStDatacenter TechnicianCommented:
Not sure about the question... :)
- Yes, you need to configure trunking on both ends.
- You can trunk port 1-2 of switchA to ports 23-24 of switchB for example.

Tamas
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