NANOG@Apr 7,2009

Date: Tue, 07 Apr 2009 14:10:24 -0700
From: Charles Wyble
Subject: Verizon EVDO Issues
To: "nanog@nanog.org"
Message-ID: <49DBC140.1040805@thewybles.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

Been troubleshooting a very strange problem for a couple of weeks now.

I have a few hundred systems deployed throughout the United States
utilizing EVDO connectivity with Verizon as a carrier. They are stationary.

Over the past few weeks clusters of them in SF and Lewisville TX and a
few other areas have been failing intermittently. They are offline for
several days, then online for a few days then go offline again. They are
running Linux and PPPD.

Has anyone else seen anything like this? I realize that there are very
few other organizations with a network footprint like ours (few hundred
static EVDO cards). Other large users like FedEx and Amtrak aren't
reporting any issues. Verizon wants to replace the cards, but that
doesn't seem like a viable solution, as it's localized to a few areas
and is intermittent.

Replies on or off list appreciated.


米国でベライゾンのインフラでEVDOキャリアをやっているエンジニアからの相談。
この2週間、サンフランシスコの一部と、テキサスの一部その他で接続障害が起きているらしい。
日本のように携帯キャリア垂直統合の国と、他の国のようにアクセスとアカウントが
分離している国ではトラブルシュートの仕方も違うのかな。
#アクセスとアカウントが分離しているというのはフレッツ網とその上のISPという関係に近いか。