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[shaske]

I was working on a dgs1216t that is connected to the dgs1248t ....  All I did was enable Vlans and assign ports on the dgs1216t...  All network traffic came to a halt. no internet no sql no file shares no printing nothing.  All traffic was going thru the 1248 I only had one wire plugged into the 1216.  When I enabled vlans for 1 switch did it reconfig all the others?  after disabling the vlans the network came back up after restarting several machines and walking dazed users thru restarting apps.  All I was doing was setting up tagged vlans on a test switch to test 802.1q compatability with a cisco router.


Any help in understanding what happened would be greatly appreciated.  We have done this many times with cisco hardware without a problem.  This just burned 2 hours of my day and can't afford a repeat.

Thanks

[Fatman]

I would take a look and be very careful you didn't end up removing your uplink port from the default VLAN.  While your at it I would ensure that GVRP is disabled.