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Multicasting Issues

Scheduled Pinned Locked Moved Solved
FOG Problems
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  • T
    Tom Elliott
    last edited by Jan 10, 2016, 2:02 AM

    @kenneth.sisco said:

    sounds like, to me, the switch is not allowing udp broadcast forwarding. This is just a guess at this point.

    I’ve tested Multicast, and all seems to be working fine.

    I’ve also messed a lot, today, with the fog scripts. Hopefully things are better and I’ve been republishing them as I find things and fix them too.

    To me, like Wayne suggested, you should start by imaging within the same switch first (not across vlan’s).

    Please help us build the FOG community with everyone involved. It's not just about coding - way more we need people to test things, update documentation and most importantly work on uniting the community of people enjoying and working on FOG! Get in contact with me (chat bubble in the top right corner) if you want to join in.

    Web GUI issue? Please check apache error (debian/ubuntu: /var/log/apache2/error.log, centos/fedora/rhel: /var/log/httpd/error_log) and php-fpm log (/var/log/php*-fpm.log)

    Please support FOG if you like it: https://wiki.fogproject.org/wiki/index.php/Support_FOG

    1 Reply Last reply Reply Quote 1
    • K
      kenneth.sisco
      last edited by Jan 10, 2016, 2:18 AM

      I’ll reach out to our network team on Monday, then, and see if they’ll help me setup a test environment. Thanks for the help - I’ll report back soon!

      G 1 Reply Last reply Jan 10, 2016, 2:24 PM Reply Quote 0
      • G
        george1421 Moderator @kenneth.sisco
        last edited by Jan 10, 2016, 2:24 PM

        @kenneth.sisco Make sure that your network switches have igmp forwarding or snooping enabled. If you have vlans in your network the igmp settings are typically set on a per vlan basis. The igmp settings allows the switch ports to subscribe to the multicast channel. The multicast stream will only be sent to ports and switches that subscribe to the multicast request. This keeps multicast traffic off switches where there are no subscribers.

        Please help us build the FOG community with everyone involved. It's not just about coding - way more we need people to test things, update documentation and most importantly work on uniting the community of people enjoying and working on FOG!

        1 Reply Last reply Reply Quote 1
        • K
          kenneth.sisco
          last edited by Jan 11, 2016, 9:20 PM

          So I worked with our network team and we were able to setup a small DHCP pool on the server VLAN temporarily for a test, and it worked fine. Once we tried again cross-VLAN, we had the same issues. I’ve copied the multicast.log section of the successful multicast below. The unsuccessful one is the same as my prior post in this thread. What I find interesting is that the multicast.log file shows that there is a new connection from the client cross-VLAN and even echoes its IP Address, but never transfers any data.

          Successful multicast (same VLAN; shortened to allow for forum posting):

          [01-11-16 4:54:24 pm]  * No tasks found!
          [01-11-16 4:54:34 pm]  | Sleeping for 10 seconds to ensure tasks are properly submitted
          [01-11-16 4:54:44 pm]  | 0 tasks to be cleaned
          [01-11-16 4:54:44 pm]  | 1 task found
          [01-11-16 4:54:44 pm]  | Task (14) Multi-Cast Task is new!
          [01-11-16 4:54:44 pm]  | Task (14) Multi-Cast Task has been cleaned.
          [01-11-16 4:54:44 pm]  | Task (14) /images/Test162016 image file found.
          [01-11-16 4:54:44 pm]  | Task (14) 1 client(s) found.
          [01-11-16 4:54:44 pm]  | Task (14) Multi-Cast Task sending on base port: 50702
          Udp-sender 20120424
          UDP sender for (stdin) at 10.133.132.127 on eth0 
          Broadcasting control to 224.0.0.1
          [01-11-16 4:54:44 pm]  | CMD: cat /images/Test162016/d1p1.img | /usr/local/sbin/udp-sender --interface eth0 --min-receivers 1 --max-wait 600 --mcast-data-address 239.132.20.10 --portbase 50702 --full-duplex --ttl 32 --nokbd --nopointopoint;cat /images/Test162016/d1p2.img | /usr/local/sbin/udp-sender --interface eth0 --min-receivers 1 --max-wait 600 --mcast-data-address 239.132.20.10 --portbase 50702 --full-duplex --ttl 32 --nokbd --nopointopoint;
          [01-11-16 4:54:44 pm]  | Task (14) Multi-Cast Task has started.
          [01-11-16 4:54:54 pm]  | 0 tasks to be cleaned
          [01-11-16 4:54:54 pm]  | 1 task found
          [01-11-16 4:54:54 pm]  | Task (14) Multi-Cast Task is already running PID 27247
          New connection from 10.133.132.242  (#0) 00000009
          Starting transfer: 00000009
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=10000
          [01-11-16 4:55:04 pm]  | 0 tasks to be cleaned
          [01-11-16 4:55:04 pm]  | 1 task found
          [01-11-16 4:55:04 pm]  | Task (14) Multi-Cast Task is already running PID 27247
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=10000
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=10000
          [01-11-16 4:55:14 pm]  | 0 tasks to be cleaned
          [01-11-16 4:55:14 pm]  | 1 task found
          [01-11-16 4:55:14 pm]  | Task (14) Multi-Cast Task is already running PID 27247
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=10000
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=10000
          [01-11-16 4:55:24 pm]  | 0 tasks to be cleaned
          [01-11-16 4:55:24 pm]  | 1 task found
          [01-11-16 4:55:24 pm]  | Task (14) Multi-Cast Task is already running PID 27247
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=10000
          [01-11-16 4:55:34 pm]  | 0 tasks to be cleaned
          [01-11-16 4:55:34 pm]  | 1 task found
          [01-11-16 4:55:34 pm]  | Task (14) Multi-Cast Task is already running PID 27247
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=10000
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=10000
          [01-11-16 4:55:44 pm]  | 0 tasks to be cleaned
          [01-11-16 4:55:44 pm]  | 1 task found
          [01-11-16 4:55:44 pm]  | Task (14) Multi-Cast Task is already running PID 27247
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=10000
          bytes=     131 040  re-xmits=0000090 (100.0%) slice=0112 -   0
          
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=2143
          bytes=  4 925 648  re-xmits=0000285 (  8.4%) slice=0112 -   0
          bytes=  8 441 244  re-xmits=0000408 (  7.0%) slice=0112 -   0
          
          Transfer complete.
          Disconnecting #0 (10.133.132.242)
          
          Udp-sender 20120424
          UDP sender for (stdin) at 10.133.132.127 on eth0 
          Broadcasting control to 224.0.0.1
          [01-11-16 4:55:54 pm]  | 0 tasks to be cleaned
          [01-11-16 4:55:54 pm]  | 1 task found
          [01-11-16 4:55:54 pm]  | Task (14) Multi-Cast Task is already running PID 27247
          New connection from 10.133.132.242  (#0) 00000009
          [01-11-16 4:56:04 pm]  | 0 tasks to be cleaned
          [01-11-16 4:56:04 pm]  | 1 task found
          [01-11-16 4:56:04 pm]  | Task (14) Multi-Cast Task is already running PID 27247
          Starting transfer: 00000009
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=1606
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=1554
          bytes=  4 976 608  re-xmits=0000206 (  6.0%) slice=0112 -   0
          
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=877
          bytes= 33 904 416  re-xmits=0003153 ( 13.5%) slice=0112 -   0
          
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=414
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=1051
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=1001
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=917
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=981
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=1439
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=1504
          bytes= 51 679 264  re-xmits=0005546 ( 15.6%) slice=0112 -   0
          bytes= 67 660 320  re-xmits=0009744 ( 20.9%) slice=0112 -   0
          
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=1059
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=732
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=553
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=576
          bytes=102 883 872  re-xmits=0013016 ( 18.4%) slice=0112 -   0
          
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=725
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=666
          bytes=133 985 488  re-xmits=0015786 ( 17.1%) slice=0112 -   0
          
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=837
          bytes=154 532 560  re-xmits=0020475 ( 19.2%) slice=0112 -   0
          
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=678
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=898
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=778
          bytes=161 870 800  re-xmits=0021278 ( 19.1%) slice=0112 -   0
          bytes=170 513 616  re-xmits=0021443 ( 18.3%) slice=0112 -   0
          
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=546
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=577
          bytes=181 951 952  re-xmits=0022699 ( 18.1%) slice=0112 -   0
          
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=6126
          bytes=203 314 384  re-xmits=0026621 ( 19.0%) slice=0112 -   0
          
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=312
          bytes=250 215 056  re-xmits=0027340 ( 15.9%) slice=0112 -   0
          
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=415
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=492
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=597
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=543
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=619
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=717
          bytes=279 522 880  re-xmits=0030935 ( 16.1%) slice=0112 -   0
          
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=835
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=713
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=600
          bytes=293 384 000  re-xmits=0034010 ( 16.8%) slice=0112 -   0
          
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=1189
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=1052
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=943
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=949
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=1505
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=1134
          [01-11-16 4:56:14 pm]  | 0 tasks to be cleaned
          [01-11-16 4:56:14 pm]  | 1 task found
          [01-11-16 4:56:14 pm]  | Task (14) Multi-Cast Task is already running PID 27247
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=1066
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=959
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=1214
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=1660
          bytes=302 842 176  re-xmits=0036928 ( 17.7%) slice=0112 -   0
          
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=1634
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=1452
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=1422
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=1340
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=1596
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=1744
          bytes=313 278 784  re-xmits=0039658 ( 18.4%) slice=0112 -   0
          
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=569
          bytes=333 988 928  re-xmits=0044769 ( 19.5%) slice=0112 -   0
          
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=690
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=784
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=640
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=886
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=819
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=807
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=805
          bytes=356 819 008  re-xmits=0049007 ( 19.9%) slice=0112 -   0
          
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=816
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=709
          bytes=378 670 656  re-xmits=0053067 ( 20.4%) slice=0112 -   0
          
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=614
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=596
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=778
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=878
          bytes=400 848 448  re-xmits=0057995 ( 21.0%) slice=0112 -   0
          bytes=423 189 312  re-xmits=0062372 ( 21.4%) slice=0112 -   0
          
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=696
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=924
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=644
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=652
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=695
          bytes=444 225 600  re-xmits=0066687 ( 21.8%) slice=0112 -   0
          
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=612
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=647
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=749
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=581
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=544
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=538
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=659
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=546
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=832
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=546
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=540
          bytes=465 588 032  re-xmits=0071328 ( 22.3%) slice=0112 -   0
          
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=821
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=810
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=857
          bytes=484 341 312  re-xmits=0075419 ( 22.6%) slice=0112 -   0
          
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=1287
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=1190
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=1295
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=1136
          bytes=496 897 856  re-xmits=0078113 ( 22.8%) slice=0112 -   0
          
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=945
          bytes=518 097 216  re-xmits=0082459 ( 23.1%) slice=0112 -   0
          
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=902
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=1023
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=1383
          bytes=537 665 856  re-xmits=0086766 ( 23.4%) slice=0112 -   0
          
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=718
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=752
          bytes=561 637 440  re-xmits=0090529 ( 23.4%) slice=0112 -   0
          
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=756
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=796
          bytes=586 587 456  re-xmits=0094555 ( 23.4%) slice=0112 -   0
          bytes=611 048 256  re-xmits=0098563 ( 23.4%) slice=0112 -   0
          
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=912
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=668
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=596
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=610
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=716
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=540
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=540
          bytes=636 324 416  re-xmits=0102313 ( 23.4%) slice=0112 -   0
          
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=539
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=727
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=927
          bytes=664 535 872  re-xmits=0105315 ( 23.0%) slice=0112 -   0
          
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=746
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=499
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=751
          bytes=688 670 528  re-xmits=0109292 ( 23.1%) slice=0112 -   0
          
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=406
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=705
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=868
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=753
          bytes=713 131 328  re-xmits=0113039 ( 23.0%) slice=0112 -   0
          [01-11-16 4:56:24 pm]  | 0 tasks to be cleaned
          [01-11-16 4:56:24 pm]  | 1 task found
          [01-11-16 4:56:24 pm]  | Task (14) Multi-Cast Task is already running PID 27247
          
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=630
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=464
          bytes=741 832 000  re-xmits=0115772 ( 22.7%) slice=0112 -   0
          
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=724
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=721
          bytes=770 206 528  re-xmits=0119096 ( 22.5%) slice=0112 -   0
          
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=644
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=639
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=1026
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=580
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=581
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=504
          bytes=799 722 560  re-xmits=0121997 ( 22.2%) slice=0112 -   0
          
          Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=623
          bytes=826 140 224  re-xmits=0124891 ( 22.0%) slice=0112 -   0
          
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          Transfer complete.
          Disconnecting #0 (10.133.132.242)
          
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          [01-11-16 4:57:54 pm]  * No tasks found!
          
          T 1 Reply Last reply Jan 11, 2016, 9:30 PM Reply Quote 0
          • T
            Tom Elliott @kenneth.sisco
            last edited by Jan 11, 2016, 9:30 PM

            @kenneth.sisco making a connection is simple but the udp stream is not being allowed to pass after the initial connection is made. The separated network method you used sounds to have a slight difference from the real network side. I don’t know what or where. This does not sound like something fog is failing to do though, like I said, I’d take a look if you can on whether broadcast forwarding is on.

            Please help us build the FOG community with everyone involved. It's not just about coding - way more we need people to test things, update documentation and most importantly work on uniting the community of people enjoying and working on FOG! Get in contact with me (chat bubble in the top right corner) if you want to join in.

            Web GUI issue? Please check apache error (debian/ubuntu: /var/log/apache2/error.log, centos/fedora/rhel: /var/log/httpd/error_log) and php-fpm log (/var/log/php*-fpm.log)

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            W 1 Reply Last reply Jan 11, 2016, 11:25 PM Reply Quote 1
            • W
              Wayne Workman @Tom Elliott
              last edited by Jan 11, 2016, 11:25 PM

              @Tom-Elliott said:

              I’d take a look if you can on whether broadcast forwarding is on.

              I agree with Tom. Broadcast forwarding is exactly what you need. This happens on your router - as a routing device is the only way that data from one LAN (or V-LAN) can traverse to other LANs (or V-LANS).

              Broadcast forwarding is called different things based on what vendor / piece of equipment you use. But it’s quite simply that which allows broadcast traffic to pass through a router. You’re network team don’t need to open everything up, they just need to allow passage from the server vlan to other vlans, and back. If your network team is really skilled, they can even limit it to a specific port on a specific switch, or a specific sending IP (the fog server’s IP).

              Please help us build the FOG community with everyone involved. It's not just about coding - way more we need people to test things, update documentation and most importantly work on uniting the community of people enjoying and working on FOG!
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              1 Reply Last reply Reply Quote 0
              • K
                kenneth.sisco
                last edited by Jan 12, 2016, 10:50 PM

                So I’m working with our network team to troubleshoot this, and we have “broadcast forwarding” working for the most part, but we’re going to keep digging. One thing we were concerned about was TTL on the client side. We can see the TTL from the server in the multicast.log, but we’re concerned about what the TTL is on the udp-receiver command. Is there a way to see that? Or a way to specify it? I was looking for the task files that 0.32 used to have stored in the tftpboot folder, but this version of Fog handles that differently, so I’m not sure where to find them.

                W 1 Reply Last reply Jan 13, 2016, 4:03 AM Reply Quote 0
                • W
                  Wayne Workman @kenneth.sisco
                  last edited by Wayne Workman Jan 12, 2016, 10:18 PM Jan 13, 2016, 4:03 AM

                  @kenneth.sisco said:

                  Is there a way to see that? Or a way to specify it?

                  It’s set to 32.

                  The setting is part of the init, so to change it, you’ll need to edit it.

                  Here are instructions on editing the init:
                  https://wiki.fogproject.org/wiki/index.php?title=Modifying_the_Init_Image

                  Here’s the command I used to find the command and it’s output.

                  grep -rnw '/root/svn/trunk' -e "udp-receiver"

                  /root/svn/trunk/.svn/pristine/34/347286bf65c7493cf5cd96049b458c34ad245cff.svn-base:374:        udp-receiver --nokbd --portbase $port --ttl 32 --mcast-rdv-address $storageip 2>/dev/null > /tmp/pigz1 &
                  /root/svn/trunk/.svn/pristine/9f/9fbd1e42a40bc6fc567380e512a84c93d309d6b7.svn-base:442:            udp-receiver --nokbd --portbase $port --ttl 32 --mcast-rdv-address $storageip 2>/dev/null >/tmp/pigz1 &
                  /root/svn/trunk/src/buildroot/package/fog/scripts/usr/share/fog/lib/funcs.sh:442:            udp-receiver --nokbd --portbase $port --ttl 32 --mcast-rdv-address $storageip 2>/dev/null >/tmp/pigz1 &
                  

                  For the record, I have went through 0.32’s code and I don’t see that ttl is specified at all in 0.32.
                  Here is the output of the above search command when I pointed it at the 0.32 directory I checked out via svn:

                  (the code lines are very wide, click and drag right to see it all)

                  /root/svn/0.32/trunk/.svn/pristine/0c/0ce1eec0cc580ce17d377e5ef7c3ca6b4d39abab.svn-base:271:                                                        udp-receiver --nokbd --portbase ${port} --mcast-rdv-address ${storageip} 2>/dev/null | gunzip -f -c 2>/dev/null | partimage -f3 -b restore $win7sys stdin
                  /root/svn/0.32/trunk/.svn/pristine/0c/0ce1eec0cc580ce17d377e5ef7c3ca6b4d39abab.svn-base:273:                                                        udp-receiver --nokbd --portbase ${port} --mcast-rdv-address ${storageip} 2>/dev/null | gunzip -f -c 2>/dev/null |  partimage -f3 -b restore $win7rec stdin
                  /root/svn/0.32/trunk/.svn/pristine/0c/0ce1eec0cc580ce17d377e5ef7c3ca6b4d39abab.svn-base:274:                                                        udp-receiver --nokbd --portbase ${port} --mcast-rdv-address ${storageip} 2>/dev/null | gunzip -f -c 2>/dev/null | partimage -f3 -b restore $win7sys stdin
                  /root/svn/0.32/trunk/.svn/pristine/0c/0ce1eec0cc580ce17d377e5ef7c3ca6b4d39abab.svn-base:278:                                                        udp-receiver --nokbd --portbase ${port} --mcast-rdv-address ${storageip} 2>/dev/null | gunzip -f -c 2>/dev/null | partimage -f3 -b restore ${part} stdin
                  /root/svn/0.32/trunk/.svn/pristine/0c/0ce1eec0cc580ce17d377e5ef7c3ca6b4d39abab.svn-base:381:                                                        udp-receiver --nokbd --portbase ${port} --mcast-rdv-address ${storageip} 2>/dev/null | gunzip -f -c 2>/dev/null | partimage -f3 -b restore $part stdin;
                  /root/svn/0.32/trunk/.svn/pristine/0c/0ce1eec0cc580ce17d377e5ef7c3ca6b4d39abab.svn-base:469:                                                        udp-receiver --nokbd --portbase ${port} --mcast-rdv-address ${storageip} 2>/dev/null | gunzip -f -c 2>/dev/null |  partimage -f3 -b restore $part stdin ;
                  /root/svn/0.32/trunk/.svn/pristine/0c/0ce1eec0cc580ce17d377e5ef7c3ca6b4d39abab.svn-base:519:                                                    udp-receiver --nokbd --portbase ${port} --mcast-rdv-address ${storageip} 2>/dev/null | gunzip -f -c 2>/dev/null | dd of=${hd}
                  /root/svn/0.32/trunk/.svn/pristine/24/2461bc1e810a56b21208edfc4164f513270cdba2.svn-base:340:                                                        udp-receiver --nokbd --portbase ${port} --mcast-rdv-address ${storageip} 2>/dev/null | partimage -f3 -b restore $win7sys stdin
                  /root/svn/0.32/trunk/.svn/pristine/24/2461bc1e810a56b21208edfc4164f513270cdba2.svn-base:342:                                                        udp-receiver --nokbd --portbase ${port} --mcast-rdv-address ${storageip} 2>/dev/null |  partimage -f3 -b restore $win7rec stdin
                  /root/svn/0.32/trunk/.svn/pristine/24/2461bc1e810a56b21208edfc4164f513270cdba2.svn-base:343:                                                        udp-receiver --nokbd --portbase ${port} --mcast-rdv-address ${storageip} 2>/dev/null | partimage -f3 -b restore $win7sys stdin
                  /root/svn/0.32/trunk/.svn/pristine/24/2461bc1e810a56b21208edfc4164f513270cdba2.svn-base:346:                                                        #udp-receiver --nokbd --portbase ${port} --mcast-rdv-address ${storageip} 2>/dev/null |  partimage -f3 -b restore ${hd}1 stdin
                  /root/svn/0.32/trunk/.svn/pristine/24/2461bc1e810a56b21208edfc4164f513270cdba2.svn-base:347:                                                        #udp-receiver --nokbd --portbase ${port} --mcast-rdv-address ${storageip} 2>/dev/null |  partimage -f3 -b restore ${hd}2 stdin
                  /root/svn/0.32/trunk/.svn/pristine/24/2461bc1e810a56b21208edfc4164f513270cdba2.svn-base:348:                                                        #udp-receiver --nokbd --portbase ${port} --mcast-rdv-address ${storageip} 2>/dev/null | partimage -f3 -b restore $win7sys stdin
                  /root/svn/0.32/trunk/.svn/pristine/24/2461bc1e810a56b21208edfc4164f513270cdba2.svn-base:352:                                                        udp-receiver --nokbd --portbase ${port} --mcast-rdv-address ${storageip} 2>/dev/null | partimage -f3 -b restore ${part} stdin
                  /root/svn/0.32/trunk/.svn/pristine/24/2461bc1e810a56b21208edfc4164f513270cdba2.svn-base:467:                                                        udp-receiver --nokbd --portbase ${port} --mcast-rdv-address ${storageip} 2>/dev/null | partimage -f3 -b restore $part stdin;
                  /root/svn/0.32/trunk/.svn/pristine/24/2461bc1e810a56b21208edfc4164f513270cdba2.svn-base:555:                                                        udp-receiver --nokbd --portbase ${port} --mcast-rdv-address ${storageip} 2>/dev/null |  partimage -f3 -b restore $part stdin ;
                  /root/svn/0.32/trunk/.svn/pristine/24/2461bc1e810a56b21208edfc4164f513270cdba2.svn-base:605:                                                    udp-receiver --nokbd --portbase ${port} --mcast-rdv-address ${storageip} 2>/dev/null | gunzip -f -c 2>/dev/null | dd of=${hd}
                  /root/svn/0.32/trunk/src/buildroot/package/customize/fog/scripts/bin/fog:340:                                                                   udp-receiver --nokbd --portbase ${port} --mcast-rdv-address ${storageip} 2>/dev/null | partimage -f3 -b restore $win7sys stdin
                  /root/svn/0.32/trunk/src/buildroot/package/customize/fog/scripts/bin/fog:342:                                                                   udp-receiver --nokbd --portbase ${port} --mcast-rdv-address ${storageip} 2>/dev/null |  partimage -f3 -b restore $win7rec stdin
                  /root/svn/0.32/trunk/src/buildroot/package/customize/fog/scripts/bin/fog:343:                                                                   udp-receiver --nokbd --portbase ${port} --mcast-rdv-address ${storageip} 2>/dev/null | partimage -f3 -b restore $win7sys stdin
                  /root/svn/0.32/trunk/src/buildroot/package/customize/fog/scripts/bin/fog:346:                                                           #       udp-receiver --nokbd --portbase ${port} --mcast-rdv-address ${storageip} 2>/dev/null |  partimage -f3 -b restore ${hd}1 stdin
                  /root/svn/0.32/trunk/src/buildroot/package/customize/fog/scripts/bin/fog:347:                                                           #       udp-receiver --nokbd --portbase ${port} --mcast-rdv-address ${storageip} 2>/dev/null |  partimage -f3 -b restore ${hd}2 stdin
                  /root/svn/0.32/trunk/src/buildroot/package/customize/fog/scripts/bin/fog:348:                                                           #       udp-receiver --nokbd --portbase ${port} --mcast-rdv-address ${storageip} 2>/dev/null | partimage -f3 -b restore $win7sys stdin
                  /root/svn/0.32/trunk/src/buildroot/package/customize/fog/scripts/bin/fog:352:                                                           udp-receiver --nokbd --portbase ${port} --mcast-rdv-address ${storageip} 2>/dev/null | partimage -f3 -b restore ${part} stdin
                  /root/svn/0.32/trunk/src/buildroot/package/customize/fog/scripts/bin/fog:467:                                                                       udp-receiver --nokbd --portbase ${port} --mcast-rdv-address ${storageip} 2>/dev/null | partimage -f3 -b restore $part stdin;
                  /root/svn/0.32/trunk/src/buildroot/package/customize/fog/scripts/bin/fog:555:                                                                       udp-receiver --nokbd --portbase ${port} --mcast-rdv-address ${storageip} 2>/dev/null |  partimage -f3 -b restore $part stdin ;
                  /root/svn/0.32/trunk/src/buildroot/package/customize/fog/scripts/bin/fog:605:                                                   udp-receiver --nokbd --portbase ${port} --mcast-rdv-address ${storageip} 2>/dev/null | gunzip -f -c 2>/dev/null | dd of=${hd}
                  /root/svn/0.32/trunk/src/buildroot/package/customize/fog/scripts/bin/fog.bkup:271:                                                                  udp-receiver --nokbd --portbase ${port} --mcast-rdv-address ${storageip} 2>/dev/null | gunzip -f -c 2>/dev/null | partimage -f3 -b restore $win7sys stdin
                  /root/svn/0.32/trunk/src/buildroot/package/customize/fog/scripts/bin/fog.bkup:273:                                                                  udp-receiver --nokbd --portbase ${port} --mcast-rdv-address ${storageip} 2>/dev/null | gunzip -f -c 2>/dev/null |  partimage -f3 -b restore $win7rec stdin
                  /root/svn/0.32/trunk/src/buildroot/package/customize/fog/scripts/bin/fog.bkup:274:                                                                  udp-receiver --nokbd --portbase ${port} --mcast-rdv-address ${storageip} 2>/dev/null | gunzip -f -c 2>/dev/null | partimage -f3 -b restore $win7sys stdin
                  /root/svn/0.32/trunk/src/buildroot/package/customize/fog/scripts/bin/fog.bkup:278:                                                              udp-receiver --nokbd --portbase ${port} --mcast-rdv-address ${storageip} 2>/dev/null | gunzip -f -c 2>/dev/null | partimage -f3 -b restore ${part} stdin
                  /root/svn/0.32/trunk/src/buildroot/package/customize/fog/scripts/bin/fog.bkup:381:                                                                  udp-receiver --nokbd --portbase ${port} --mcast-rdv-address ${storageip} 2>/dev/null | gunzip -f -c 2>/dev/null | partimage -f3 -b restore $part stdin;
                  /root/svn/0.32/trunk/src/buildroot/package/customize/fog/scripts/bin/fog.bkup:469:                                                                  udp-receiver --nokbd --portbase ${port} --mcast-rdv-address ${storageip} 2>/dev/null | gunzip -f -c 2>/dev/null |  partimage -f3 -b restore $part stdin ;
                  /root/svn/0.32/trunk/src/buildroot/package/customize/fog/scripts/bin/fog.bkup:519:                                                      udp-receiver --nokbd --portbase ${port} --mcast-rdv-address ${storageip} 2>/dev/null | gunzip -f -c 2>/dev/null | dd of=${hd}
                  

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                  1 Reply Last reply Reply Quote 0
                  • K
                    kenneth.sisco
                    last edited by Jan 14, 2016, 4:26 PM

                    We’re still having trouble narrowing this down, but is it safe to assume that if Multicast is working across the same VLAN that it’s no longer a fog issue?

                    S 1 Reply Last reply Jan 14, 2016, 5:09 PM Reply Quote 0
                    • S
                      Sebastian Roth Moderator @kenneth.sisco
                      last edited by Sebastian Roth Jan 14, 2016, 11:10 AM Jan 14, 2016, 5:09 PM

                      @kenneth.sisco said:

                      We’re still having trouble narrowing this down, but is it safe to assume that if Multicast is working across the same VLAN that it’s no longer a fog issue?

                      I would think so! Looked into igmp settings on your switches yet?

                      Web GUI issue? Please check apache error (debian/ubuntu: /var/log/apache2/error.log, centos/fedora/rhel: /var/log/httpd/error_log) and php-fpm log (/var/log/php*-fpm.log)

                      Please support FOG if you like it: https://wiki.fogproject.org/wiki/index.php/Support_FOG

                      K 1 Reply Last reply Jan 14, 2016, 7:21 PM Reply Quote 1
                      • K
                        kenneth.sisco @Sebastian Roth
                        last edited by Jan 14, 2016, 7:21 PM

                        @Sebastian-Roth Yes, we’ve looked at IGMP, but our topology is fairly complex. Currently the network team is working on moving rendezvous points closer to the server/clients and investigating potential issues in NXOS, as we recently migrated from Cisco IOS cores to Nexus.

                        Unfortunately, my visibility on this is very limited, so I’m doing my best to keep this rolling on the server side as we troubleshoot.

                        I’ll update with more info later as we progress.

                        1 Reply Last reply Reply Quote 0
                        • K
                          kenneth.sisco
                          last edited by Jan 14, 2016, 9:23 PM

                          Cool - issue resolved!

                          This was absolutely an issue on our network, but we’re not sure if it was an old static Rendezvous Point that was configured on our core or if it was our VPC redundancy between our two nexus switches, but we were able to solve it by disabling pim on one of the nexuses and removing that static RP.

                          Thanks for the help on investigating, everyone. It’s much appreciated.

                          1 Reply Last reply Reply Quote 1
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