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Multicast deploy run slow...

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FOG Problems
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  • F
    fabritrento
    last edited by Dec 5, 2014, 7:51 AM

    I try to deploy 4 machines in multicast mode, but with a 100Mbit switch partimage runs only at 100Mbyte/min.

    When i run in unicast mode, single machine, runs at 1200Mbyte/min

    why?

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    • C
      ch3i Moderator
      last edited by Dec 5, 2014, 8:01 AM

      Hi,

      Are they connected to a managed switch ?

      Regards,
      Ch3i.

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      • F
        fabritrento
        last edited by Dec 5, 2014, 8:06 AM

        no, are 3 switch 24 port unmanaged dlink 100Mbit model DES-1024D.

        i see also that if there is a multicast task in progress, the dhcp server don’t serve the clients

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        • C
          ch3i Moderator
          last edited by Dec 5, 2014, 8:30 AM

          You can try to multicast 3 machines, to find the computer wich run slowly on multicast.

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          • F
            fabritrento
            last edited by Dec 5, 2014, 8:38 AM

            i just tryed with only one pc in multicast mode: runs at 130Mbyte/min

            Same pc in unicast runs at 1,2Gbyte/min so i think that multicast module is buggly

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            • C
              ch3i Moderator
              last edited by Dec 5, 2014, 9:12 AM

              Wich version do you use ?

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              • F
                fabritrento
                last edited by Dec 5, 2014, 9:13 AM

                latest stable, 1.2.0

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                • C
                  ch3i Moderator
                  last edited by Dec 5, 2014, 9:31 AM

                  With 1.2 and svn I had these problems due to Cisco configuration, not a problem with FoG.

                  You can’t compare Unicast and Multicast, they don’t use the same protocole.

                  Do you have another model of 100Mb switch ?

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                  • F
                    fabritrento
                    last edited by Dec 5, 2014, 9:53 AM

                    no, i don’t have other switchs

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                    • C
                      ch3i Moderator
                      last edited by Dec 5, 2014, 9:57 AM

                      You can try SVN version, but I think it’s a problem with the switch…

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                      • T
                        Tom Elliott
                        last edited by Dec 5, 2014, 10:43 AM

                        It definitely sounds like an issue with the switch.

                        Is there a way you could try a cross over cable and temporary dhcp server on your fog server? Do things work better this way?

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                        • J
                          Jaymes Driver Developer
                          last edited by Dec 5, 2014, 12:15 PM

                          Personally I only every use Unicast, it’s faster, it’s more reliable, and it doesn’t bring my DHCP Server down.

                          Is there a particular reason you want to multicast these?

                          If it were my environment, I wouldn’t be multicasting on this equipment.

                          WARNING TO USERS: My comments are written completely devoid of emotion, do not mistake my concise to the point manner as a personal insult or attack.

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                          • C
                            ch3i Moderator
                            last edited by Dec 5, 2014, 2:00 PM

                            [quote=“Jaymes Driver, post: 39693, member: 3582”]Is there a particular reason you want to multicast these?[/quote]

                            100Mb switch maybe 🙂

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