[asterisk-users] seeking hardware recommendation PCI versus PCI Express E1 card (te407p vs te420bf)

[Jay R. Ashworth]

On Wed, Aug 13, 2008 at 03:06:58PM -0500, Kevin P. Fleming wrote:
> Keep in mind that even if you use 4 E1 circuits with the card, the total
> bandwidth consumption of card is approximately 1 megabyte per second (4
> times 2 megabits per second), which is drastically below the PCI bus
> bandwidth of 132 megabytes per second (33 MHz bus with 32-bit
> transfers). No quad-T1/E1 card will ever be able to saturate a PCI bus,
> especially not PCI-X or PCI-E.

Though, depending on the design of the card and drivers, interrupts/sec
may be an issue -- sometimes a deciding issue.

Cheers,
-- jra
-- 
Jay R. Ashworth                   Baylink                      jra at baylink.com
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