tag:blogger.com,1999:blog-3920347219421157797.post1734002969272750031..comments2024-03-27T21:55:28.163-07:00Comments on Clint Boessen's Blog: Slow MultiCast Imaging with Symantec GhostClint Boessenhttp://www.blogger.com/profile/11156487394562821934noreply@blogger.comBlogger4125tag:blogger.com,1999:blog-3920347219421157797.post-91696052750716345012015-03-31T19:43:46.836-07:002015-03-31T19:43:46.836-07:00Multi-Cast is controlled by the IGMP protocol whic...Multi-Cast is controlled by the IGMP protocol which has backwards/forwards communication with clients in the IGMP session. The data stream is one way - your correct however is controlled by IGMP.Clint Boessenhttps://www.blogger.com/profile/11156487394562821934noreply@blogger.comtag:blogger.com,1999:blog-3920347219421157797.post-64504394196986496922015-03-31T09:05:15.542-07:002015-03-31T09:05:15.542-07:00How would a multicast sender know that a receiver ...How would a multicast sender know that a receiver was dropping packets, as multicast is a one way protocol?Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-3920347219421157797.post-41188701777551525132010-04-06T01:34:20.567-07:002010-04-06T01:34:20.567-07:00Hey Nigel Bree,
Have you come across this time-ou...Hey Nigel Bree,<br /><br />Have you come across this time-out problem with Symantec Ghost Suite 2.5 when pushing out large images?<br /><br />Please see:<br /><a href="http://clintboessen.blogspot.com/2010/04/connection-timed-out-symantec-ghost.html" rel="nofollow">http://clintboessen.blogspot.com/2010/04/connection-timed-out-symantec-ghost.html</a>Clint Boessenhttps://www.blogger.com/profile/11156487394562821934noreply@blogger.comtag:blogger.com,1999:blog-3920347219421157797.post-24059474568566735442010-04-02T23:05:13.267-07:002010-04-02T23:05:13.267-07:00In addition to this, the other thing about IGMP th...In addition to this, the other thing about IGMP that I have repeated endlessly on our official forums is that if you turn on IGMP snooping, you need to ensure that your network has an IGMP querier configured - when switches learn about the associations between IGMP groups and switch ports, they forget them unless the association is periodically refreshed, such as by a querier (note that queriers are part of the IGMP protocol specification, which is written around routing; snooping by switches is conceptually parasitic on that routing interchange).<br /><br />Typically the IGMP querier device is something that can also act as a multicast (e.g. PIM-capable) router; you're allowed several potential queriers serving a network and in principle they elect one amongst themselves based on the lowest IP address. Note however that not all querier devices do this properly, so that multiple queriers is also a source of problems with switches from some vendors - see <a href="https://www-secure.symantec.com/connect/forums/ghost-115-flooding-our-network" rel="nofollow">https://www-secure.symantec.com/connect/forums/ghost-115-flooding-our-network</a>Anonymoushttps://www.blogger.com/profile/06250261487558615694noreply@blogger.com