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  1. balexand9999

    Stacking two types of 3Com Switches 3250 & 4500 via sfp can not ping

    I have three 3Com switches two 4500 and one 3250 that is existing and that I cannot power down as stated in the 4500 manual. I have mixed media fiber and copper sfp interfaces and with the three switches I made a circle. The stack cables need to be straight thru or back to back? Should I be...

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