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Network Degraded when using multicast

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  • 1.  Network Degraded when using multicast

    Posted Oct 01, 2016 01:18 PM

    Hello All,
    I have an issue with network that built with following layout , 3 stack Aruba 2920-48 x2 , both stack are connected to Huawei S6720-54C-EI-48S with 3x lacp sfp+ from each stack member, diagram shown below.
    All switch are configured with multicast for one vlan version 3 ip  lookup mode based as shown below
    The issue is when I create multicast group (using vlc for testing)sending stream on Huawei port #9 (239.10.10.50:2000).
    Then, I create a subscriber to receive this stream on Huawei port #7.
    For a while everything goes fine but after a while network performance starts to degrade.
    and i can see on our monitoring lots of discards packets during the multicast tests , any idea  what could cause this degradation on the network , why the hp interfaces get so many discards seems like broadcast storm?

     

    Thanks

    discardsdiscardsmulticast trafficmulticast traffic

    igmp settingigmp setting

     

    Networ LayoutNetwor Layout


    #aurba2920
    #multicast


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