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  • 1.  EX4100 VC cabling

    Posted 02-03-2023 12:54

    How should VC consisting of 3+ members (EX4100/EX4100-F) be cabled?
    With 2 VC ports per switch it was easy ;) But now there are 4 VC ports per switch. How to use them best? Still use loop topology or maybe mesh is possible?

    Kind regards,

    Pawel Mazurkiewicz

  • 2.  RE: EX4100 VC cabling

    Posted 02-03-2023 13:38
    I have always understood (my experience is with EX3300 and EX3400) that
    it doesn't matter how you connect VC members to each other, as long as
    you use ports that are designated as "vc-ports". The switches will
    detect the topology and use it as discovered.

    Of course it's required that all members are connected, but in what way
    is up to you. Some choose for a Cisco/Avaya style where you make a loop
    (like 1->2 2->3 3->1 etc.) but nobody is stopping you from connecting
    the first member with two cables to the second, connecting the second
    member to the third with two cables and that's. The only drawback here
    is that if the middle unit fails, the first and the last will get
    isolated. To avoid that you can also use a point-to-point scheme where
    all members are connected to all members. Or use the plain 'ole loop.

  • 3.  RE: EX4100 VC cabling

    Posted 02-20-2023 10:33
    Edited by Michael Pappas 02-20-2023 13:06


    Just because a switch has more than 2 VC ports doesn't mean you need to use all of them, for all of ours we just use the first 2. You can reconfigure 1 or 2 of the not used ones to uplinks if the rest of your network supports.

    Kind Regards,