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This are bigger NSC II for the 4800 Series.

"Network Service Controller"

For the enhanced functions with Layer 3 and 4 switching and routing, the ESX Series needs a NSC, this is a
"Network Service Controller".

Inside the NSC there runs a Web based software called "ForeThought" based on  a Web-Server under a very special (restricted version) of Microsoft NT 4.0 Server.
You need this anyway, not only to manage and control the extended functions and capabilities of the switch.

This are NSC I for the 2400 Series.

The NSC I and NSC II servers are standard Intel based servers (single or dual Pentium II or III PC´s) within a 19" rackmount chassis with mirrored scsi harddisks.

The concept seems to be foolproof. The NSCs have one physical NIC to the switch and another physical NIC to the network and one virtual NIC for the local administration.

The Windows NT 4.0 SP5 or 6 is a special strictly limited edition with the least components we have ever seen. The Fore engeneers did delete everything what is nessecarry to hack or corrupt the operating system.

So it is really hard to add any hardware or software onto the harddiscs. If you loose your supervisor password, you are beginning to have a lot of stress. There is no CD drive nor a floppy or a IDE driver to connect anything to that server.

When you get it running, you are happy and you have a very nice tool to manage your units. It is better to step over to a more powerful server, having the same components but a more powerful CPU. The Webserver with its java engine "eats" a lot of speed.

The NSC = "Network Service Controller" from Fore / Marconi :

NSC Type 

NSC Model 

Target Platforms 

Description 

NSC-1 

Model 1 

ESX-2400 

1 CPU 

NSC-1 

Model 2 

ESX-2400 

1 CPU 

NSC-2 

Model 1 

ESX-4800 

2 CPUs 

NSC-2 

Model 2 

ESX-4800 

2 CPUs 

NSC-1 

Model 3 

ESX-2400 / ESX-4800 

1 CPU / NLX Compliant

NSC-2 

Model 3 

ESX-2400 / ESX-4800 

2 CPUs / NLX Compliant

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