nanog mailing list archives
Re: Presumed RF Interference
From: Iljitsch van Beijnum <iljitsch () muada com>
Date: Sun, 5 Mar 2006 23:59:20 +0100
On 5-mrt-2006, at 23:37, Jon R. Kibler wrote:
1) How could a bad ground cause DSL line noise that ia inaudible? Also, the noise is on the telco side, not the LAN side. 2) Why would it be blowing DSL routers that are isolated from the LAN by a switch and another router? And, all of this equipment is in the same rack, on the same ground, and on the same UPS.
This makes me think of a place where they used copper lines that ran alongside rail road tracks, and each time a train came by the leased line modems would go haywire. Electrical trains put a lot of current in the ground...
Current thread:
- Re: Presumed RF Interference, (continued)
- Re: Presumed RF Interference Martin Hannigan (Mar 05)
- Re: Presumed RF Interference Matthew Sullivan (Mar 06)
- Re: Presumed RF Interference Steven M. Bellovin (Mar 06)
- Re: Presumed RF Interference ww (Mar 06)
- Re: Presumed RF Interference Ian Mason (Mar 07)
- Re: Presumed RF Interference Andrew C Burnette (Mar 08)
- Re: Presumed RF Interference Randy Bush (Mar 06)
- Re: Presumed RF Interference Peter Dambier (Mar 06)
- Re: Presumed RF Interference Jay Hennigan (Mar 06)
- Re: Presumed RF Interference Iljitsch van Beijnum (Mar 05)