Re: New gigabit cards

Scott Laird (laird@internap.com)
Wed, 28 Mar 2001 13:07:56 -0800 (PST)


On Wed, 28 Mar 2001, Gregory Maxwell wrote:
>
> Asante:
> FriendlyNet GigaNIX 1000TPC (Cu) $149.99
>

Interesting -- this seems to be the only card of the set that actually has
drivers available for download, although the D-Link card has drivers for
an older GigE card listed.

According to the drivers, the 1000TPC uses the NS DP83820. According to
the DP83820's datasheet, it has a 8k Tx buffer and a 32k Rx buffer.
That's a bit shy of the 512k-1M that older cards use :-(. At wire speed,
that means that you'll have to service the NIC's interrupt within ~60 us
on transmit and ~250 us on receive. That seems rather optimistic.

Scott

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