Connecting 3 switches to a fourth switch, each with its own crossover cable shuts down ports
- From: "Ned" <nedhart@xxxxxxxxxxx>
- Date: 29 Mar 2007 11:04:19 -0700
This is probably a very basic question but I need to ask it anyway
since there is no easy way to test it while everyone is on the
network. I have (3) 3com switches, all are connected via a proprietary
backplane cable called a matrix cable whis is sort of like a crossover
cable. I added a fourth switch, a Cisco catalyst, and decided to plug
each 3com into the Cisco switch using three crossover cables, one
cable for each 3com, connected to the Cisco. Later I would connect the
Cisco to a trunk. After plugging in the three xover cables I noticed
only one port was active, and if I unplugged the active port, one of
the other two ports became active. Is this spannig tree? was it doing
this to prevent a loop? Will this config work once I remove the matrix/
backplane cable?
thanks
NH
.
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