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  • 1.  Multicast restore freezes then resume

    Posted Jan 22, 2018 05:59 PM

    Hi,

    i am using ghostcast server 11.5.1.2266 on a windows 2012 server to image and restore different types of computers.

    The problem is that sometimes, the restore freezes for few minutes then resumes. after some minutes it ll freeze again for few minutes then continue, and so on. The restore always works in the end, but instead of taking 20 minutes, then it can take more than one hour.

    i read that it could be related to IGMP, i enabled IGMP on my switch i still have the same behavior.

    How can i fix this?



  • 2.  RE: Multicast restore freezes then resume

    Posted Jan 23, 2018 11:55 AM

    IGMP snooping probably needs to be configured.

    Have you seen this?

    https://supportforums.cisco.com/t5/lan-switching-and-routing/igmp-snooping/td-p/2349933



  • 3.  RE: Multicast restore freezes then resume

    Posted Jan 24, 2018 02:42 PM

    yes igmp snooping is configured on the switch. Querier is the switch itself.

     

    basically there is my ghostcast server on the switch and client laptops connected, nothing else.

     

     



  • 4.  RE: Multicast restore freezes then resume

    Posted Jan 24, 2018 05:31 PM

    Interesting.

    Besides the obvious things like latest WinPE NIC drivers and firmware / IOS for the switch, can you setup another switch to duplicate the issue?

    I would also read this thread - https://www.symantec.com/connect/forums/multicast-issues-0

    Your PIM, protocol independent multicast, settings may need tweaking. IIRC, ours are dense mode. But again, that is site specific.