nanog mailing list archives
RE: London incidents
From: Michael.Dillon () btradianz com
Date: Mon, 11 Jul 2005 10:40:30 +0100
Mobile networks in particular have been put under pressure as people use their phones to contact friends and family following the explosions.
Luckily, I was 10 minutes late leaving home otherwise I could very well have been on that first train which was attacked near Aldgate. When the Central Line shut down, I tried to get a bus, and when all the bus service into central London was shut down I gave up and started walking home. I suspected that the rumours of terrorist attack were true. All this while I was trying unsuccessfully to use my mobile to ring the office. Finally, I decided to try sending a text message and this worked. Text messages normally are delivered virtually instantaneously and there is a time stamp indicating when the message was sent. During the morning and early afternoon of Thursday, I was receiving text messages that had been sent between 20 minutes and one hour previous. Some of the problems on the mobile networks were the result of a protocol to reserve mobile capabilities for the emergency services. The police have the authority to switch cells to emergency service and then people with specially registered SIM cards in their mobile can take priority. Presumably, some amount of capacity is also held in reserve for these people as well. I had moved the weekend before and my landline was not yet installed. Also, I live near a large hospital. I noticed that my mobile didn't function at all even late on Thursday unless I left home and travelled a kilometer or two from the hospital. Presumably, the cells in this suburban location had also been switched to emergency service. --Michael Dillon
Current thread:
- London incidents Neil J. McRae (Jul 07)
- Re: London incidents Brad Knowles (Jul 07)
- RE: London incidents Neil J. McRae (Jul 07)
- Re: London incidents Gadi Evron (Jul 07)
- Re: London incidents Sean Donelan (Jul 09)
- Re: London incidents Spencer Wood (Jul 11)
- Re: London incidents Sean Donelan (Jul 09)
- <Possible follow-ups>
- RE: London incidents Fergie (Paul Ferguson) (Jul 07)
- RE: London incidents Michael . Dillon (Jul 11)
- Re: London incidents Iljitsch van Beijnum (Jul 11)
- Re: London incidents Michael . Dillon (Jul 11)
- Re: London incidents Iljitsch van Beijnum (Jul 11)
- Re: London incidents Jay R. Ashworth (Jul 11)
- RE: London incidents Michael . Dillon (Jul 11)
- RE: London incidents Neil J. McRae (Jul 11)
- Re: London incidents Brad Knowles (Jul 07)
- Re: London incidents Robert E . Seastrom (Jul 11)
- Re: London incidents Steven M. Bellovin (Jul 11)
- Re: London incidents Robert E . Seastrom (Jul 11)
- Re: London incidents Scott W Brim (Jul 11)