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тАО02-01-2008 10:03 AM
тАО02-01-2008 10:03 AM
Basic C-Class Blade questions
I have some C-Class blade questions. If you think a document will answer thest questions, great.
1. If I have 2 (for redundancy) Ethernet Pass-Thru Modules do I 'need' a blade switch? Could I just use an external switch?
2. Ethernet Pass Thru Modules are 'required' if IP connectivity is needed out of a server blade, yes?
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тАО02-01-2008 10:56 AM
тАО02-01-2008 10:56 AM
Re: Basic C-Class Blade questions
In a C7000 enclosure half the NICs exit though bay 1, half the others though bay 2. In a C3000 enclosure all NICs exit through bay 1.
You must insert a network pass-though or switch on those bays to have network connectivity.
One important thing is that Ethernet pass-through only works at 1 Gb full-duplex speed.
You can plug mezzanine boards on the blade to add more network, fiber channel or infiniband outputs. Then you'll need to add the corresponding output modules in the back.
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тАО02-01-2008 11:04 AM
тАО02-01-2008 11:04 AM
Re: Basic C-Class Blade questions
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тАО02-01-2008 11:22 AM
тАО02-01-2008 11:22 AM
Re: Basic C-Class Blade questions
The choice of ethernet switch or passthough depends on your network administrator or policies. Ethernet pass-trough gives you a separate link to each NIC. So you'll have 16 ethernet cables on the back, which you must connect to a external switch.
The other possibility is to use a switch (GbE2c / Cisco 3020) on enclosure bay 1. You will have 5 or 8 external links to connect it to the rest of your network.
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тАО02-01-2008 02:34 PM
тАО02-01-2008 02:34 PM
Re: Basic C-Class Blade questions
How does the switch physically interface with a blade server? What would a 1 GB interface on Cisco 3020 be used for, uplink to another switch, connect to a blade server, or an external host?
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тАО02-01-2008 02:55 PM
тАО02-01-2008 02:55 PM
Re: Basic C-Class Blade questions
Regards,
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тАО02-01-2008 05:04 PM
тАО02-01-2008 05:04 PM
Re: Basic C-Class Blade questions
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тАО02-02-2008 12:21 AM
тАО02-02-2008 12:21 AM
Re: Basic C-Class Blade questions
Points assignment will be appreciated :)