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    FOG Multicasting speed drops to zero

    Scheduled Pinned Locked Moved
    General Problems
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    • M
      mashina
      last edited by

      Hi everyone,

      I have three rooms, each containing several identical computers. These rooms are all on the same VLAN, connected across multiple switches without any router in between. Multicasting works successfully in one of the rooms where I have two test computers. However, in the other rooms with more computers, the multicast starts fine but drops to zero speed at around 80% completion, causing FOG to disconnect the clients. Our IT department informed me that IGMP snooping is enabled on the switches. Does anyone have suggestions on what I should do?

      Thanks!

      Here are the multicasting logs from FOG:

      
      [09-05-24 12:23:01 pm] Task started
      Udp-sender 20200328
      Using mcast address 236.28.1.80
      UDP sender for /images/Peruswin30052024/d1p1.img at 172.28.1.80 on ens18
      Broadcasting control to 224.0.0.1
      New connection from 172.28.171.152  (#0) 00000009
      New connection from 172.28.172.246  (#1) 00000009
      New connection from 172.28.171.93  (#2) 00000009
      New connection from 172.28.171.248  (#3) 00000009
      Starting transfer: 00000009
      bytes= 31 988 620  re-xmits=0000000 (  0.0%) slice=0112 -   0
      Transfer complete.
      Disconnecting #0 (172.28.171.152)
      Disconnecting #1 (172.28.172.246)
      Disconnecting #2 (172.28.171.93)
      Disconnecting #3 (172.28.171.248)
      
      Udp-sender 20200328
      Using mcast address 236.28.1.80
      UDP sender for /images/Peruswin30052024/d1p2.img at 172.28.1.80 on ens18
      Broadcasting control to 224.0.0.1
      New connection from 172.28.171.93  (#0) 00000009
      New connection from 172.28.171.152  (#1) 00000009
      New connection from 172.28.172.246  (#2) 00000009
      New connection from 172.28.171.248  (#3) 00000009
      Starting transfer: 00000009
      bytes=          754  re-xmits=0000000 (  0.0%) slice=0112 -   0
      Transfer complete.
      Disconnecting #0 (172.28.171.93)
      Disconnecting #1 (172.28.171.152)
      Disconnecting #2 (172.28.172.246)
      Disconnecting #3 (172.28.171.248)
      
      Udp-sender 20200328
      Using mcast address 236.28.1.80
      UDP sender for /images/Peruswin30052024/d1p3.img at 172.28.1.80 on ens18
      Broadcasting control to 224.0.0.1
      New connection from 172.28.171.152  (#0) 00000009
      New connection from 172.28.172.246  (#1) 00000009
      New connection from 172.28.171.93  (#2) 00000009
      New connection from 172.28.171.248  (#3) 00000009
      Starting transfer: 00000009
      bytes=383 545 344  re-xmits=0003052 (  1.1%) slice=0112 -   2
      Timeout notAnswered=[0,1,2,3] notReady=[0,1,2,3] nrAns=0 nrRead=0 nrPart=4 avg=260
      bytes=  1 096 595K re-xmits=0006569 (  0.8%) slice=0112 -   32
      Timeout notAnswered=[0,1,2,3] notReady=[0,1,2,3] nrAns=0 nrRead=0 nrPart=4 avg=143
      bytes=  1 128 445K re-xmits=0006610 (  0.8%) slice=0112 -   3
      Timeout notAnswered=[1] notReady=[1] nrAns=3 nrRead=3 nrPart=4 avg=343
      Timeout notAnswered=[1] notReady=[1] nrAns=3 nrRead=3 nrPart=4 avg=497
      bytes=  1 238 487K re-xmits=0007656 (  0.8%) slice=0112 -   3
      Timeout notAnswered=[0,1,2,3] notReady=[0,1,2,3] nrAns=0 nrRead=0 nrPart=4 avg=576
      bytes=  1 302 505K re-xmits=0009546 (  1.0%) slice=0112 -   3
      Timeout notAnswered=[1] notReady=[1] nrAns=3 nrRead=3 nrPart=4 avg=402
      bytes=  1 567 179K re-xmits=0010179 (  0.9%) slice=0112 -   3
      Timeout notAnswered=[2,3] notReady=[2,3] nrAns=2 nrRead=2 nrPart=4 avg=824
      bytes=  3 664 342K re-xmits=0017061 (  0.6%) slice=0112 -   1
      Timeout notAnswered=[0,1,2,3] notReady=[0,1,2,3] nrAns=0 nrRead=0 nrPart=4 avg=1792
      bytes=  4 463 299K re-xmits=0019621 (  0.6%) slice=0112 -   2
      Timeout notAnswered=[0,1,2,3] notReady=[0,1,2,3] nrAns=0 nrRead=0 nrPart=4 avg=599
      bytes=  4 563 468K re-xmits=0020107 (  0.6%) slice=0112 -   2
      Timeout notAnswered=[2] notReady=[2] nrAns=3 nrRead=3 nrPart=4 avg=641
      bytes=  4 778 296K re-xmits=0020577 (  0.6%) slice=0112 -   2
      Timeout notAnswered=[0,1,2,3] notReady=[0,1,2,3] nrAns=0 nrRead=0 nrPart=4 avg=119
      bytes=  5 007 297K re-xmits=0020734 (  0.5%) slice=0112 -   2
      Timeout notAnswered=[0,1,2,3] notReady=[0,1,2,3] nrAns=0 nrRead=0 nrPart=4 avg=485
      bytes=  6 070 450K re-xmits=0023146 (  0.5%) slice=0112 -   2
      Timeout notAnswered=[0] notReady=[0] nrAns=3 nrRead=3 nrPart=4 avg=613
      bytes=  6 260 436K re-xmits=0023887 (  0.5%) slice=0112 -   2
      Timeout notAnswered=[0,1,2,3] notReady=[0,1,2,3] nrAns=0 nrRead=0 nrPart=4 avg=508
      bytes=  6 444 369K re-xmits=0024305 (  0.5%) slice=0112 -   2
      Timeout notAnswered=[2] notReady=[2] nrAns=3 nrRead=3 nrPart=4 avg=443
      bytes=  6 847 431K re-xmits=0026738 (  0.5%) slice=0112 -   1
      Timeout notAnswered=[2] notReady=[2] nrAns=3 nrRead=3 nrPart=4 avg=410
      bytes=  6 978 812K re-xmits=0027410 (  0.5%) slice=0112 -   0
      Timeout notAnswered=[2] notReady=[2] nrAns=3 nrRead=3 nrPart=4 avg=345
      Timeout notAnswered=[2] notReady=[2] nrAns=3 nrRead=3 nrPart=4 avg=483
      bytes=  7 469 939K re-xmits=0030905 (  0.5%) slice=0112 -   0
      Timeout notAnswered=[0,1,2,3] notReady=[0,1,2,3] nrAns=0 nrRead=0 nrPart=4 avg=458
      bytes=  8 012 982K re-xmits=0031040 (  0.5%) slice=0112 -   2
      Timeout notAnswered=[2] notReady=[2] nrAns=3 nrRead=3 nrPart=4 avg=730
      Timeout notAnswered=[2] notReady=[2] nrAns=3 nrRead=3 nrPart=4 avg=609
      bytes=  8 057 413K re-xmits=0031341 (  0.5%) slice=0112 -   2
      Timeout notAnswered=[0,1,2,3] notReady=[0,1,2,3] nrAns=0 nrRead=0 nrPart=4 avg=416
      bytes=  8 325 590K re-xmits=0031799 (  0.5%) slice=0112 -   0
      Timeout notAnswered=[0,1,2,3] notReady=[0,1,2,3] nrAns=0 nrRead=0 nrPart=4 avg=277
      bytes=  8 393 430K re-xmits=0031799 (  0.5%) slice=0112 -   2
      Timeout notAnswered=[0,1,2,3] notReady=[0,1,2,3] nrAns=0 nrRead=0 nrPart=4 avg=432
      bytes=  9 791 645K re-xmits=0038831 (  0.5%) slice=0112 -   3
      Timeout notAnswered=[1] notReady=[1] nrAns=3 nrRead=3 nrPart=4 avg=515
      bytes= 10 154 417K re-xmits=0040422 (  0.5%) slice=0112 -   3
      Timeout notAnswered=[0,1,2,3] notReady=[0,1,2,3] nrAns=0 nrRead=0 nrPart=4 avg=275
      bytes= 10 450 781K re-xmits=0041730 (  0.5%) slice=0112 -   0
      Timeout notAnswered=[2] notReady=[2] nrAns=3 nrRead=3 nrPart=4 avg=476
      bytes= 10 521 966K re-xmits=0041866 (  0.5%) slice=0112 -   0
      Timeout notAnswered=[0,1,2,3] notReady=[0,1,2,3] nrAns=0 nrRead=0 nrPart=4 avg=665
      bytes= 10 534 387K re-xmits=0043371 (  0.5%) slice=0112 -   2
      Timeout notAnswered=[0,1,2,3] notReady=[0,1,2,3] nrAns=0 nrRead=0 nrPart=4 avg=819
      bytes= 10 592 832K re-xmits=0044592 (  0.5%) slice=0112 -   0
      Timeout notAnswered=[3] notReady=[3] nrAns=3 nrRead=3 nrPart=4 avg=449
      Timeout notAnswered=[3] notReady=[3] nrAns=3 nrRead=3 nrPart=4 avg=511
      Timeout notAnswered=[3] notReady=[3] nrAns=3 nrRead=3 nrPart=4 avg=553
      Timeout notAnswered=[3] notReady=[3] nrAns=3 nrRead=3 nrPart=4 avg=557
      Timeout notAnswered=[3] notReady=[3] nrAns=3 nrRead=3 nrPart=4 avg=618
      bytes= 10 723 895K re-xmits=0048043 (  0.6%) slice=0112 -   0
      Timeout notAnswered=[3] notReady=[3] nrAns=3 nrRead=3 nrPart=4 avg=400
      bytes= 11 625 887K re-xmits=0051194 (  0.6%) slice=0112 -   1
      Timeout notAnswered=[2] notReady=[2] nrAns=3 nrRead=3 nrPart=4 avg=538
      bytes= 13 114 237K re-xmits=0060619 (  0.6%) slice=0112 -   2
      Timeout notAnswered=[0,1,2,3] notReady=[0,1,2,3] nrAns=0 nrRead=0 nrPart=4 avg=723
      bytes= 13 680 212K re-xmits=0064918 (  0.6%) slice=0112 -   0
      Timeout notAnswered=[0,1,2,3] notReady=[0,1,2,3] nrAns=0 nrRead=0 nrPart=4 avg=504
      bytes= 13 875 452K re-xmits=0065742 (  0.6%) slice=0112 -   2
      Timeout notAnswered=[0,1,2,3] notReady=[0,1,2,3] nrAns=0 nrRead=0 nrPart=4 avg=305
      bytes= 14 137 100K re-xmits=0066021 (  0.6%) slice=0112 -   2
      Timeout notAnswered=[0,1,2,3] notReady=[0,1,2,3] nrAns=0 nrRead=0 nrPart=4 avg=391
      bytes= 14 524 077K re-xmits=0068797 (  0.6%) slice=0112 -   2
      Timeout notAnswered=[1,3] notReady=[1,3] nrAns=2 nrRead=2 nrPart=4 avg=628
      bytes= 14 555 450K re-xmits=0070761 (  0.6%) slice=0112 -   0
      Timeout notAnswered=[3] notReady=[3] nrAns=3 nrRead=3 nrPart=4 avg=500
      Timeout notAnswered=[3] notReady=[3] nrAns=3 nrRead=3 nrPart=4 avg=560
      bytes= 14 660 395K re-xmits=0071438 (  0.6%) slice=0112 -   3
      Timeout notAnswered=[2] notReady=[2] nrAns=3 nrRead=3 nrPart=4 avg=668
      bytes= 14 773 463K re-xmits=0073978 (  0.7%) slice=0112 -   3
      Timeout notAnswered=[2] notReady=[2] nrAns=3 nrRead=3 nrPart=4 avg=1196
      bytes= 15 564 139K re-xmits=0076526 (  0.6%) slice=0112 -   0
      Timeout notAnswered=[0,1,2,3] notReady=[0,1,2,3] nrAns=0 nrRead=0 nrPart=4 avg=265
      bytes= 15 714 630K re-xmits=0076972 (  0.6%) slice=0112 -   3
      Timeout notAnswered=[0,1,2,3] notReady=[0,1,2,3] nrAns=0 nrRead=0 nrPart=4 avg=509
      bytes= 15 937 899K re-xmits=0077055 (  0.6%) slice=0112 -   0
      Timeout notAnswered=[3] notReady=[3] nrAns=3 nrRead=3 nrPart=4 avg=665
      Timeout notAnswered=[3] notReady=[3] nrAns=3 nrRead=3 nrPart=4 avg=665
      Timeout notAnswered=[3] notReady=[3] nrAns=3 nrRead=3 nrPart=4 avg=665
      Timeout notAnswered=[3] notReady=[3] nrAns=3 nrRead=3 nrPart=4 avg=665
      Timeout notAnswered=[3] notReady=[3] nrAns=3 nrRead=3 nrPart=4 avg=665
      Timeout notAnswered=[3] notReady=[3] nrAns=3 nrRead=3 nrPart=4 avg=665
      Timeout notAnswered=[3] notReady=[3] nrAns=3 nrRead=3 nrPart=4 avg=665
      Timeout notAnswered=[3] notReady=[3] nrAns=3 nrRead=3 nrPart=4 avg=665
      Timeout notAnswered=[3] notReady=[3] nrAns=3 nrRead=3 nrPart=4 avg=665
      Timeout notAnswered=[3] notReady=[3] nrAns=3 nrRead=3 nrPart=4 avg=665
      Timeout notAnswered=[3] notReady=[3] nrAns=3 nrRead=3 nrPart=4 avg=665
      Timeout notAnswered=[3] notReady=[3] nrAns=3 nrRead=3 nrPart=4 avg=665
      Timeout notAnswered=[3] notReady=[3] nrAns=3 nrRead=3 nrPart=4 avg=665
      Timeout notAnswered=[3] notReady=[3] nrAns=3 nrRead=3 nrPart=4 avg=665
      Timeout notAnswered=[3] notReady=[3] nrAns=3 nrRead=3 nrPart=4 avg=665
      Timeout notAnswered=[3] notReady=[3] nrAns=3 nrRead=3 nrPart=4 avg=665
      Timeout notAnswered=[3] notReady=[3] nrAns=3 nrRead=3 nrPart=4 avg=665
      Timeout notAnswered=[3] notReady=[3] nrAns=3 nrRead=3 nrPart=4 avg=665
      Timeout notAnswered=[3] notReady=[3] nrAns=3 nrRead=3 nrPart=4 avg=665
      Timeout notAnswered=[3] notReady=[3] nrAns=3 nrRead=3 nrPart=4 avg=665
      Timeout notAnswered=[3] notReady=[3] nrAns=3 nrRead=3 nrPart=4 avg=665
      Timeout notAnswered=[3] notReady=[3] nrAns=3 nrRead=3 nrPart=4 avg=665
      Timeout notAnswered=[3] notReady=[3] nrAns=3 nrRead=3 nrPart=4 avg=665
      Timeout notAnswered=[3] notReady=[3] nrAns=3 nrRead=3 nrPart=4 avg=665
      Timeout notAnswered=[3] notReady=[3] nrAns=3 nrRead=3 nrPart=4 avg=665
      Timeout notAnswered=[3] notReady=[3] nrAns=3 nrRead=3 nrPart=4 avg=665
      Timeout notAnswered=[3] notReady=[3] nrAns=3 nrRead=3 nrPart=4 avg=665
      Timeout notAnswered=[3] notReady=[3] nrAns=3 nrRead=3 nrPart=4 avg=665
      Timeout notAnswered=[3] notReady=[3] nrAns=3 nrRead=3 nrPart=4 avg=665
      Timeout notAnswered=[3] notReady=[3] nrAns=3 nrRead=3 nrPart=4 avg=665
      Timeout notAnswered=[3] notReady=[3] nrAns=3 nrRead=3 nrPart=4 avg=665
      Timeout notAnswered=[3] notReady=[3] nrAns=3 nrRead=3 nrPart=4 avg=665
      Timeout notAnswered=[3] notReady=[3] nrAns=3 nrRead=3 nrPart=4 avg=665
      Dropping client #3 because of timeout
      Disconnecting #3 (172.28.171.248)
      bytes= 15 955 894K re-xmits=0077055 (  0.6%) slice=0112 -   1
      Timeout notAnswered=[0,1,2] notReady=[0,1,2] nrAns=0 nrRead=0 nrPart=3 avg=665
      Timeout notAnswered=[0,1,2] notReady=[0,1,2] nrAns=0 nrRead=0 nrPart=3 avg=665
      Timeout notAnswered=[0,1,2] notReady=[0,1,2] nrAns=0 nrRead=0 nrPart=3 avg=665
      Timeout notAnswered=[0,1,2] notReady=[0,1,2] nrAns=0 nrRead=0 nrPart=3 avg=665
      Timeout notAnswered=[0,1,2] notReady=[0,1,2] nrAns=0 nrRead=0 nrPart=3 avg=665
      Timeout notAnswered=[0,1,2] notReady=[0,1,2] nrAns=0 nrRead=0 nrPart=3 avg=665
      Timeout notAnswered=[0,1,2] notReady=[0,1,2] nrAns=0 nrRead=0 nrPart=3 avg=665
      Timeout notAnswered=[0,1,2] notReady=[0,1,2] nrAns=0 nrRead=0 nrPart=3 avg=665
      Timeout notAnswered=[0,1,2] notReady=[0,1,2] nrAns=0 nrRead=0 nrPart=3 avg=665
      Timeout notAnswered=[0,1,2] notReady=[0,1,2] nrAns=0 nrRead=0 nrPart=3 avg=665
      Timeout notAnswered=[0,1,2] notReady=[0,1,2] nrAns=0 nrRead=0 nrPart=3 avg=665
      Timeout notAnswered=[0,1,2] notReady=[0,1,2] nrAns=0 nrRead=0 nrPart=3 avg=665
      Timeout notAnswered=[0,1,2] notReady=[0,1,2] nrAns=0 nrRead=0 nrPart=3 avg=665
      Timeout notAnswered=[0,1,2] notReady=[0,1,2] nrAns=0 nrRead=0 nrPart=3 avg=665
      Timeout notAnswered=[0,1,2] notReady=[0,1,2] nrAns=0 nrRead=0 nrPart=3 avg=665
      Timeout notAnswered=[0,1,2] notReady=[0,1,2] nrAns=0 nrRead=0 nrPart=3 avg=665
      Timeout notAnswered=[0,1,2] notReady=[0,1,2] nrAns=0 nrRead=0 nrPart=3 avg=665
      Timeout notAnswered=[0,1,2] notReady=[0,1,2] nrAns=0 nrRead=0 nrPart=3 avg=665
      Timeout notAnswered=[0,1,2] notReady=[0,1,2] nrAns=0 nrRead=0 nrPart=3 avg=665
      Timeout notAnswered=[0,1,2] notReady=[0,1,2] nrAns=0 nrRead=0 nrPart=3 avg=665
      Timeout notAnswered=[0,1,2] notReady=[0,1,2] nrAns=0 nrRead=0 nrPart=3 avg=665
      Timeout notAnswered=[0,1,2] notReady=[0,1,2] nrAns=0 nrRead=0 nrPart=3 avg=665
      Timeout notAnswered=[0,1,2] notReady=[0,1,2] nrAns=0 nrRead=0 nrPart=3 avg=665
      Timeout notAnswered=[0,1,2] notReady=[0,1,2] nrAns=0 nrRead=0 nrPart=3 avg=665
      Timeout notAnswered=[0,1,2] notReady=[0,1,2] nrAns=0 nrRead=0 nrPart=3 avg=665
      Timeout notAnswered=[0,1,2] notReady=[0,1,2] nrAns=0 nrRead=0 nrPart=3 avg=665
      Timeout notAnswered=[0,1,2] notReady=[0,1,2] nrAns=0 nrRead=0 nrPart=3 avg=665
      Timeout notAnswered=[0,1,2] notReady=[0,1,2] nrAns=0 nrRead=0 nrPart=3 avg=665
      Timeout notAnswered=[0,1,2] notReady=[0,1,2] nrAns=0 nrRead=0 nrPart=3 avg=665
      Timeout notAnswered=[0,1,2] notReady=[0,1,2] nrAns=0 nrRead=0 nrPart=3 avg=665
      Timeout notAnswered=[0,1,2] notReady=[0,1,2] nrAns=0 nrRead=0 nrPart=3 avg=665
      Timeout notAnswered=[0,1,2] notReady=[0,1,2] nrAns=0 nrRead=0 nrPart=3 avg=665
      Timeout notAnswered=[0,1,2] notReady=[0,1,2] nrAns=0 nrRead=0 nrPart=3 avg=665
      Timeout notAnswered=[0,1,2] notReady=[0,1,2] nrAns=0 nrRead=0 nrPart=3 avg=665
      Dropping client #0 because of timeout
      Disconnecting #0 (172.28.171.152)
      Dropping client #1 because of timeout
      Disconnecting #1 (172.28.172.246)
      Dropping client #2 because of timeout
      Disconnecting #2 (172.28.171.93)
      bytes= 15 955 894K re-xmits=0077055 (  0.6%) slice=0112 -   1
      Transfer complete.
      
      Udp-sender 20200328
      Using mcast address 236.28.1.80
      UDP sender for /images/Peruswin30052024/d1p4.img at 172.28.1.80 on ens18
      Broadcasting control to 224.0.0.1
      
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