Thursday, August 16, 2018

How to take down your whole network...

Okay so I made a little mistake today. I was ending off a network cable to go from a switch in our server room to one switch at the other end of the building. We have a stack of 3 layer 3 Cisco switches in the server room. I changed port 3 on switch 1 to a trunk port but me being me plugged the layer 2 switch at the other end of the building into switch 2 which was only set up as an access port. This wiped out almost every switch on the network (apart from the Cisco Meraki ones).

Am I right in thinking I caused a network/switching loop?



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