[31686] in North American Network Operators' Group
Effect of SS7 disruptions on dialup Internet access
daemon@ATHENA.MIT.EDU (Sean Donelan)
Sun Oct 8 02:44:18 2000
Date: 7 Oct 2000 23:42:30 -0700
Message-ID: <20001008064230.15319.cpmta@c004.sfo.cp.net>
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To: nanog@merit.edu
From: Sean Donelan <sean@donelan.com>
Errors-To: owner-nanog-outgoing@merit.edu
A few questions. I'm completing my paper on the effect of fiber cuts
on the Internet, and I'm looking for a few data sources or SWAGs.
How much Internet dialup is done via access banks connected to CLEC
lines versus to Bell/ILEC lines?
What percentage of the CLEC Internet dialup ports depend on a third-party
(i.e. Illuminet) SS7 data channel to complete the call between the
typical residential/business user on an ILEC line and the ISP on a
CLEC line?
My theory is because many of the ISP ports have migrated off the ILEC
networks onto CLECs they are impacted by a SS7 failure more than the
traditional call traffic. SS7 failures are very rare, but the two I know
about disrupted dialup ISP access across huge geographic regions.
