Looking for Ethernet Blade Switch With Isolated Segments

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I am looking for a 4U switch that can insert about six ports on blades,  
similar to this idea:

The key requirement though is that each inserted card act as an independent  
ethernet switch.  I don't want to hassle with defining VLANs that isolate  
ports on each blade.

My application is a firewall, with many segments.   Currently we stack a lot  
of 1U and 2U ethernet switches, and the real estate for all of those  
switches is expensive in terms of rack space.   A 4U box with eight  
insertable blades would give me eight ethernet segments to play with in an  
extremely condensed space.    Does anyone make this?

Alternately, I could look for rackmountable ethernet switches that are about  
1/2 U, if those exist.


Re: Looking for Ethernet Blade Switch With Isolated Segments
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Looks like a good solution might be 5 to 8 port industrial ethernet switches  
that mount on a DIN rail.  That gives you the entire depth of a server  
cabinet to mount 4U high switches, side by side.

I also noticed that most of these are DC powered devices, and the DC powered  
ethernet switches appear to use about 4 watts of energy versus closer to 40  
watts for equivalent AC powered products.


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