Troubleshoot Downloading - Multicast

Article under construction. Below, you will find notes / gibberish that I'm collecting to make into an article.

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Multicast's roles in FOG

Multicasting in FOG uses UDPcast to send a single image to multiple computers using only slightly more bandwidth than sending the image to a single computer or unicast. Multicasting will be slightly slower than a single unicast task.

Testing Multicast

udp-sender http://linux.die.net/man/1/udp-sender

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Inside the FOG DB, there are two multicast association tables. You can delete all the rows in those tables, re-install FOG, and try again.

mysql
use fog
DELETE FROM `multicastSessions` WHERE 1;
DELETE FROM `multicastSessionsAssoc` WHERE 1;
DELETE FROM `tasks` WHERE `taskTypeID` = 8;
quit

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Check the status of FOGMulticastManager and restart:

Fedora:

systemctl status FOGMulticastManager
systemctl restart FOGMulticastManager

Ubuntu:

sudo service FOGMulticastManager status
sudo service FOGMulticastManager restart