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Port Problem?

Port Problem?

Port Problem?

I have a switch stack of 4 5500-ei with one being a 5500-ei-pwr.  We have ip interfaces assigned to 2 vlans on the switch and are doing dhcp relaying.  On what appears to be random ports dhcp seems to be slow to respond.  I am running the latest firmware (3.03.02ep10s168).  At this point I have replaced all the hardware, reset the stack and rebuilt from scratch but the problem remains.  Even as I am typing this I don't really believe that this is a switch problem but the one thing I have isolated it to is a port on the switch.  Even if I put my fluke link runner on it is takes around 37 seconds to acquire an address.  Put it on the next port over and it takes around 3 seconds.  So I have tried different hardware on the changed all the patch cords and even plugged the computer directly into the switch.  Any ideas would be great!

RE: Port Problem?

It sounds exactly like the difference between old spanning-tree and rapid spanning-tree. Review your spanning-tree config.

RE: Port Problem?

Update...I downloaded all the .cfg file from each switch in the stack.  I noticed on switches 2, 3 and 4 some ports are missing the default config.  Anyone have any idea on what would cause this?  What is the right way to do a factory reset?  As I mentioned this equipment was brandnew out of the box.  I have installed and programmed these out of box in this exact same config many times before so this is a weird one.  I updated all the programming and everything seems to be opereating normally now.


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