The speed of light through fiber is about 2/3 the speed of light through a vacuum. This is why HFT prefers microwave over fiber when it comes to latency.
----- Mike Hammett Intelligent Computing Solutions Midwest Internet Exchange The Brothers WISP ----- Original Message ----- From: "Ben Cannon" <b...@6by7.net> To: "Mehmet Akcin" <meh...@akcin.net> Cc: "nanog" <nanog@nanog.org> Sent: Tuesday, October 30, 2018 2:59:48 AM Subject: Re: CLS to CLS Latency info I’d be astonished if they varied much from lightspeed. -Ben On Oct 29, 2018, at 8:11 PM, Mehmet Akcin < meh...@akcin.net > wrote: Hello there I have been searching for CLS (Cable Landing Station) to CLS latency infirnation for submarine cables. I was able to identify only a handful of them via sales catalogs. I am still missing like 320~ systems, does wnyone have this info available? If i can’t find the data, i am going to formulate from lentgh of fiber diveded by speed of light on fibre (~ +\- resistance) but I really would prefer actual ping ;) This is for www.networkatlas.org project. Thank you in advance! Mehmet -- Mehmet +1-424-298-1903
