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Is it possible to get 10 Gigabit Ethernet cards for Mac Pros? And, if so, would they make a huge difference, or are there bottlenecks elsewhere in the Mac Pro's architecture that make it pointless?
Also, can anyone recommend a 10 Gigabit Ethernet switch?
Mac OS X (10.5),
Mac OS X 10.5.1 Server Standard Setup
I can't see any real reason for this. Your current hard disk won't transfer any faster than ~60MB/sec (approx 480Mb/sec). That's about half of the current bandwidth of the gigabit card already in your machine. Can you think of anything that you will be using that would actually exceed the current 1Gbps card?
Thanks megagram. I'm a CAD Manager so we're always looking for more bandwidth. I was just curious where the industry is at with it, and particularly where Apple's at with it.
It just goes to show, unless you
really need this stuff, it's best to stay away for now.
If you are building your network right now, go buy the best quality Category 6 ethernet cable and use existing Gigabit ports with it. This high-quality cabling will allow you to use 10Gigabit speeds up to 50 meters when it becomes more available.
10GBASE-T
10GBASE-T, or IEEE 802.3an-2006, is a standard released in 2006 to provide 10 gigabit/second connections over conventional unshielded or shielded twisted pair cables, over distances up to 100 m.[2] As of 2007, products remain scarce, but new silicon is expected to make 10GBASE-T switches available in 2008 at a price of less than $500 per port.
[edit]Connectors
10GBASE-T uses 650 MHz versions of the venerable IEC 60603-7 connectors (a.k.a. RJ-45) already widely used with Ethernet.
[edit]Cables
10GBASE-T will work up to 55 metres (180 ft) with existing Category 6 cabling. In order to allow deployment at the usual 100 metres (328 ft), the standard uses a new partitioned augmented Category 6 or "6a" cable specification, designed to reduce crosstalk between UTP cables (formally known as "alien crosstalk"), which, as of August 2007 is still in draft status.
I'd say anything over $100 per port is *Horrendously Expensive*
More like the transceiver chip(s) are fabricated from Gallium Arsenide rather than Silicon due to the extremely high switching speed. GaAs is both more expensive to work but also has lower per die yields.
Also for such high speed switching and signaling, not just any board substrate or layout will do. The board substrate must not be resonant at microwave frequencies. Traces must be closely matched circuit lengths to prevent signal phase noise.
The connectors are ultra low crosstalk versions of RJ-45's.
