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Port Problem?

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PDBrad101

IS-IT--Management
Feb 23, 2010
2
US
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!
 
It sounds exactly like the difference between old spanning-tree and rapid spanning-tree. Review your spanning-tree config.
 
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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