hp procurve and netgear switches

[ful56_uk]

hi guys

 

we have a hp procurve at the core and some at the edge network, they both talking fine they all have stp enabled, when i ping the switch i get a response within 1ms

 

when i have join our old netgear 7224 to the main switch i get random repsonses back from the netgear switches, now these were fine in till we installed the the hp core switch.

 

 

any ideas

 

mark

[SYNACK]

Have you chacked which one is being elected the STP master, if the priority is set up on the netgear one and a new elecion is triggered your traffic could be attemptint to find and allocate the best route to one of your edge switches rather than your core.