From owner-nanog@merit.edu Mon Sep 20 14:37:38 2004 Date: Mon, 20 Sep 2004 15:31:03 -0400 (EDT) Subject: Re: SkyCache/Cidera replacement?

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Hadn't it gotten to the point shortly before Cidera folded that the satellite bandwidth was so insufficient for a "full feed" that it was of questionable value?...or was it still fine if you wanted a usenet feed with no binaries?

Probably. Yes.

IIRC, a full feed of usenet (3 years ago) was approx 250GB+ per day. The overwhelming majority of that was multi-part binaries. Cut them out and you should have plenty of room across the transponder, which (again, 3 years ago) was capable of DS3 capacity.

According to contacts at some of the big outsourcing providers, bandwidth reqirement for a 'full feed' these days, substantially exceeds the capacity of 100mbit full-duplex ethernet. something like 1.5+TB/day. Growth rate in still excess of 30% annually. Most of the recent traffic growth coming from Denmark.