Re: CLS to CLS Latency info

[Mike Hammett <nanog () ics-il net>]

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" <ben () 6by7 net> 
To: "Mehmet Akcin" <mehmet () 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 < mehmet () 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