mailing list archives
Internet assessment - Sept 12 2001
From: Sean Donelan <sean () donelan com>
Date: 12 Sep 2001 17:17:23 -0700
The day after. As always the priority is on the continuing rescue
efforts, and for the families of the victims.
Power problems are the concern for Internet services on the second day.
Internet reach ability appears to returned near normal, with certain
localized exceptions around New York City and circuits through New York
City to Germany and other European locations.
Rescue efforts may impact the network as debris must be moved or
demolished. Reportly some carriers are operating on half-rings now,
so additional damage could result in more service disruptions.
Verizon lost 10 cell sites, Cingular Wireless lost 6 cell sites. Some
cell sites were down to to power outages, some because the land lines
connected though equipment in the World Trade Center towers.
Verizon and Cingular are deploying additional mobile cell sites where
possible, and permitted by authorities.
Verizon has re-programmed Verizon owned payphones in Manhattan, providing
free local telephone calls.
Sprint and ATT Local Services had equipment in/near the World Trade Center.
Sprint reports several circuits are down, ATT Local Service reports their
equipment survived the inital collapse until the battery plant was exhausted.
25 Broadway is still on generator. 32 Old Slip is back up on generators,
after being down overnight. Fuel deliveries may or may not be allowed by
emergency authorities. Much of it depends on the conditions of the streets
and safety of rescue works.
I don't have any first-hand reports from 60 Hudson, but everything appears
to be working.
The New York City web site www.nyc.gov seems to be down, congested or has
routing problems. I can't reach it from any network I have access.
Access below 14th street is still restricted. ISP engineers may or may
not be allowed access to facilities in lower Manhattan. You should contact
the building owner for any special access requirements.
The dust in the air creates problems keeping the generators going. If
prolonged run-times are required, its likely they will need to be shutdown
for maintenance (filter changes, oil changes, etc). This could result in
periodic outages of a few hours.
The suspension of flights has also meant the suspension of spare parts.
Equipment failures (i.e card failures, chassis failures, etc) requiring
replacement parts will require swapping parts with other ISPs locally or
waiting until deliveries resume.
Most circuit repair activity in Manhattan has been suspended, except for
emergency circuits to hospitals and similar emergency response locations.
ISPs rarely have restoration priority on their circuits, so any circuit
failures should be expected to continue for a long-time.
Facility based carriers are not subject to restoration priority for their
own circuits. However, restoration priority rules apply to any customer
circuits of those carriers, including other carriers or ISPs.
Several ISPs, Internet colocation facilities and other service providers
have offered assistance where possible in New York City, and other locations.
I expect most companies are willing to make special arrangements where
- Internet assessment - Sept 12 2001 Sean Donelan (Sep 13)