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Posted by MC on January 12, 2007, 7:00 pm
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Mikhael47 wrote:
> I have 4 BS 470's. Two are 48T's and the other two are 24T's. The two
> 48's are in our main building and the two 24's are in an adjacent
> building. The pair of devices on each side are stacked.
>
> I have two fiber loops joining the devices together. For a long time,
> we had both GBICs connected at the same time (one on each unit).
>
> This morning, we came in, and our entire network was down. The
> activity lights on the ethernet drops were all on solid. After some
> poking around I decided to yank one of the GBICs out and the network
> calmed down.
>
> Should one GBIC be active on each of the switches or is it OK to have 2
> active (one from-to each switch)??
>
> Is there any aggregate bandwidth increase or fault tolerance gained by
> having both connected at once?
>
> Alternatively is there any problems with plugging both loops in at the
> same time?
>
> Thanks
>
> Mike
>
either need to have MLT configured on each end or make sure spanning
tree is enabled on all fiber ports at each end, however spanning tree
will block one connection and keep the other up.
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