[atlas] Protocol/Technology testing?
Ronald Bonica rbonica at juniper.net
Tue Feb 14 00:36:00 CET 2012
Folks, Considering Daniel's initial question, I don't think that an extension to ICMP will help. Most probably, the solution is for ATLAS nodes to send a more diverse mix of traffic (ICMP, HTTP, HTTPS IPSEC) and report results. While discussion of RFC 4884 and draft-shen was interesting, it doesn't solve Daniel's problem. Ron > -----Original Message----- > From: Fred Baker [mailto:fred at cisco.com] > Sent: Sunday, February 12, 2012 10:22 PM > To: Carlos Pignataro; Dan.Tappan at gmail.com; derhwagan at yahoo.com; Ronald > Bonica > Cc: ripe-atlas at ripe.net; Daniel AJ Sokolov > Subject: Re: [atlas] Protocol/Technology testing? > > Question for you: > > RFC 4884 says that ICMP/ICMPv6 define an Echo Request/Reply message, > but as I read it doesn't permit the use of that structure with the Echo > Request or Reply. It seems like RFC 4884 would help in this context. > > For example, if Atlas Probes and their servers use NTP to synchronize > time, an Echo Request could contain the time the message was sent, and > the service could deduce one-way delay. The response could similarly > include a timestamp, the probe could calculate one-way delay, and > report the time and delta-time of that response in its next request. > Additionally, the service could command a probe to additionally > traceroute to another probe, and the probe could later report its > experience. > > What would it take to facilitate the use of RFC 4884 extensions with > ICMP/ICMPv6? > > > On Feb 12, 2012, at 1:00 AM, Daniel AJ Sokolov wrote: > > > Hello, > > > > Are there any plans to extend the Atlas probe's functionality from > simple Pings to more sophisticated testing? > > > > For example: > > Can actual payloads be transferred (http, ftp, SMTP, NNTP etc.) and > with which parameters? > > Is encryption available (https, ssh, starttls, etc.)? > > > > Some countries and/or ISPs restrict what users can do. > > > > Currently, Iran is inhibiting all encrypted international connection. > For the users on the ground this is horrible - no gmail, no yahoo, no > online banking, no Tor network - no proivacy! > > > > Yet on the Atlas network everything seems to be fine, as pings still > work. (However, only one of the six probes is online, the rest has been > offline for weeks. And the one that is online was offline for weeks > until a few days ago. I'm not sure what the issue is there.) > > > > It would be good to know if some protocols are not available in a > certain jurisdiction. Of course, such tests could be done at a much > lower rate than Pings - some maybe every hour, others every couple of > hours. > > > > Then again, the probes might not be mighty enough? > > > > BR > > Daniel AJ > > > > -- > > Follow me on twitter @newstik http://twitter.com/newstik > >