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Old 10-08-2009, 04:15 AM   #1
Registered: May 2006
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Question Virtual Network Interfaces - What is it suitable for?


What are Virtual Network Interfaces (e.g. eth0:1) suitable for? I mean a reasonable range of application?

Further how are switches deal with the fact, that 2 network devices are using the same MAC address? Doesn't it cause problems with the CAM-table?

Old 10-08-2009, 04:26 AM   #2
Registered: Sep 2009
Distribution: Fedora, Red Hat
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I think this is mostly used for ip based virtual webservers (see

hm... Why should this case a problem with the CAM table?
Old 10-08-2009, 04:41 AM   #3
Registered: May 2006
Posts: 89

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Arg, yes. The CAM-table only holds one MAC address and doens't care about multiple IP's behind this one. My mistake.


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