Re: Measuring PoP to PoP latency--tools to use?
On Wed, 22 August 2001, k claffy wrote:
On Wed, Aug 22, 2001 at 06:08:15PM +0200, Adam Obszynski wrote:
What tools exist that will periodically log into multiple routers and run ping tests to various destinations and then record the results in graphical form?
maybe the RTR cisco router feature for sonde-like probing ?
InternetMCI(purchased by Cable & Wireless) and AT&T spent a lot of effort developing their tools. I haven't seen any commercially available systems which come close. C&W and AT&T seem to be unique among huge backbone providers in publishing their network performance. However, an alternative for measuring round-trip times with ICMP is setting up a full mesh of NTP assocations. As part of the calculations of the "time" get an ongoing measurement of network delay between the routers. You can use your favorite tool to read the NTP associations table, and generate a nice web page. I believe this is how UUNET use to do their version.
Sean Donelan wrote:
On Wed, 22 August 2001, k claffy wrote:
On Wed, Aug 22, 2001 at 06:08:15PM +0200, Adam Obszynski wrote:
What tools exist that will periodically log into multiple routers and run ping tests to various destinations and then record the results in graphical form?
maybe the RTR cisco router feature for sonde-like probing ?
InternetMCI(purchased by Cable & Wireless) and AT&T spent a lot of effort developing their tools. I haven't seen any commercially available systems which come close. C&W and AT&T seem to be unique among huge backbone providers in publishing their network performance.
However, an alternative for measuring round-trip times with ICMP is setting up a full mesh of NTP assocations. As part of the calculations of the "time" get an ongoing measurement of network delay between the routers. You can use your favorite tool to read the NTP associations table, and generate a nice web page. I believe this is how UUNET use to do their version.
There used to be a site somewhere (I think Andover or Keynote sucked up the domain, but it was a while ago) that had a very nice little script that pinged IP addresses and presented the visitor with average latency to those addresses. Looked something like this: UUNet (x.x.x.x) -> 38 ms (green) C&W (x.x.x.x) -> 68 ms (yellow) AOL (x.x.x.x) -> 400 ms (red) It was cheesy, and not particularly scientific, but I've been trying to find something like that to implement for the marketing folk. It could probably be adapted into something more useful to us though. Suffice it to say, I haven't found anything, and I'm about to dive into a week-long coding spree writing my own. If anyone can connect me with something that'll work, I'd be happy to send a case of their choice of beer. ;) Grant
There used to be a site somewhere (I think Andover or Keynote sucked up the domain, but it was a while ago) that had a very nice little script that pinged IP addresses and presented the visitor with average latency to those addresses. Looked something like this:
UUNet (x.x.x.x) -> 38 ms (green) C&W (x.x.x.x) -> 68 ms (yellow) AOL (x.x.x.x) -> 400 ms (red)
ratings.miq.net www.internetweather.com ? Actually, the latter seems to have been borged by (was always a part of?) the former. It may have also been netcopter.com, which is now dead... Eddy --------------------------------------------------------------------------- Brotsman & Dreger, Inc. - EverQuick Internet Division Phone: +1 (316) 794-8922 Wichita/(Inter)national Phone: +1 (785) 865-5885 Lawrence --------------------------------------------------------------------------- Date: Mon, 21 May 2001 11:23:58 +0000 (GMT) From: A Trap <blacklist@brics.com> To: blacklist@brics.com Subject: Please ignore this portion of my mail signature. These last few lines are a trap for address-harvesting spambots. Do NOT send mail to <blacklist@brics.com>, or you are likely to be blocked.
It was cheesy, and not particularly scientific, but I've been trying to find something like that to implement for the marketing folk. It could probably be adapted into something more useful to us though. Suffice it
fping, from Stanford originally, now at www.fping.com might be useful, it pings multiple hosts at the same time (fast, efficient) It has easy to parse output and easily gives results like: fping -e <targets www.chatt.net is alive (0.32 ms) www.att.net is alive (27.5 ms) www.uu.net is unreachable
when someone asked me to do something like this, i waded through caida's site and came accross this: http://www-iepm.slac.stanford.edu/pinger/ it's pretty cool stuff. requires *nix box, perl5, and some sort of webserver software to produce simple reporting. there's also (optionally) utilities that draw some pretty graphs that require gnuplot/ppmtogif. imho, this is considerably better than logging into your router to do this. routers are much better at forwarding packets than sending/receiving them. (except older non-distributed routers, which aren't particularly great at either for high traffic volumes) other bonus: no automated sending of passwords from a box that might not get much admin attention. one could probably modify these tools to use fping, but i just played around with them for edutainment purposes. there's no mention of copyright that i can find, but one should ask before using for commercial purposes. On Thu, Aug 23, 2001 at 08:32:17AM -0400, mike harrison wrote:
It was cheesy, and not particularly scientific, but I've been trying to find something like that to implement for the marketing folk. It could probably be adapted into something more useful to us though. Suffice it
fping, from Stanford originally, now at www.fping.com might be useful, it pings multiple hosts at the same time (fast, efficient) It has easy to parse output and easily gives results like:
fping -e <targets www.chatt.net is alive (0.32 ms) www.att.net is alive (27.5 ms) www.uu.net is unreachable
-- Sam Thomas Geek Mercenary
I once worked for a company that wrote a unix script that worked like this. Basically imagine a quare chart will all the pops listed across the top and down the left side. Every few minutes, each pop tries a small ping burst to ping all of the others, and the values are filled into the chart. Results are color coded as green, yellow, and red. Brian ----- Original Message ----- From: "Sam Thomas" <sthomas@lart.net> To: "mike harrison" <meuon@highertech.net> Cc: "Grant A. Kirkwood" <grant@virtical.net>; "Sean Donelan" <sean@donelan.com>; <nanog@merit.edu> Sent: Thursday, August 23, 2001 7:27 AM Subject: Re: Measuring PoP to PoP latency--tools to use?
when someone asked me to do something like this, i waded through caida's site and came accross this:
http://www-iepm.slac.stanford.edu/pinger/
it's pretty cool stuff. requires *nix box, perl5, and some sort of webserver software to produce simple reporting. there's also (optionally) utilities that draw some pretty graphs that require gnuplot/ppmtogif.
imho, this is considerably better than logging into your router to do
this.
routers are much better at forwarding packets than sending/receiving them. (except older non-distributed routers, which aren't particularly great at either for high traffic volumes) other bonus: no automated sending of passwords from a box that might not get much admin attention.
one could probably modify these tools to use fping, but i just played around with them for edutainment purposes. there's no mention of copyright that i can find, but one should ask before using for commercial purposes.
On Thu, Aug 23, 2001 at 08:32:17AM -0400, mike harrison wrote:
It was cheesy, and not particularly scientific, but I've been trying
to
find something like that to implement for the marketing folk. It could probably be adapted into something more useful to us though. Suffice it
fping, from Stanford originally, now at www.fping.com might be useful, it pings multiple hosts at the same time (fast, efficient) It has easy to parse output and easily gives results like:
fping -e <targets www.chatt.net is alive (0.32 ms) www.att.net is alive (27.5 ms) www.uu.net is unreachable
-- Sam Thomas Geek Mercenary
Brian wrote:
I once worked for a company that wrote a unix script that worked like this. Basically imagine a quare chart will all the pops listed across the top and down the left side. Every few minutes, each pop tries a small ping burst to ping all of the others, and the values are filled into the chart. Results are color coded as green, yellow, and red.
Brian
----- Original Message ----- From: "Sam Thomas" <sthomas@lart.net> To: "mike harrison" <meuon@highertech.net> Cc: "Grant A. Kirkwood" <grant@virtical.net>; "Sean Donelan" <sean@donelan.com>; <nanog@merit.edu> Sent: Thursday, August 23, 2001 7:27 AM Subject: Re: Measuring PoP to PoP latency--tools to use?
when someone asked me to do something like this, i waded through caida's site and came accross this:
http://www-iepm.slac.stanford.edu/pinger/
it's pretty cool stuff. requires *nix box, perl5, and some sort of webserver software to produce simple reporting. there's also (optionally) utilities that draw some pretty graphs that require gnuplot/ppmtogif.
imho, this is considerably better than logging into your router to do
this.
routers are much better at forwarding packets than sending/receiving them. (except older non-distributed routers, which aren't particularly great at either for high traffic volumes) other bonus: no automated sending of passwords from a box that might not get much admin attention.
one could probably modify these tools to use fping, but i just played around with them for edutainment purposes. there's no mention of copyright that i can find, but one should ask before using for commercial purposes.
On Thu, Aug 23, 2001 at 08:32:17AM -0400, mike harrison wrote:
It was cheesy, and not particularly scientific, but I've been trying
to
find something like that to implement for the marketing folk. It could probably be adapted into something more useful to us though. Suffice it
fping, from Stanford originally, now at www.fping.com might be useful, it pings multiple hosts at the same time (fast, efficient) It has easy to parse output and easily gives results like:
fping -e <targets www.chatt.net is alive (0.32 ms) www.att.net is alive (27.5 ms) www.uu.net is unreachable
-- Sam Thomas Geek Mercenary
The NLANR Multicast beacon does this now for multicast : http://dast.nlanr.net/Projects/beacon/ http://beaconserver.accessgrid.org:9999/ It would be pretty trivial to modify this for a set of unicast beacons; the code is available. There would have to be beacon management or discovery (now done implicitly by multicast). You might want to lower the beacon send rate as well. -- Regards Marshall Eubanks T.M. Eubanks Multicast Technologies, Inc 10301 Democracy Lane, Suite 410 Fairfax, Virginia 22030 Phone : 703-293-9624 Fax : 703-293-9609 e-mail : tme@multicasttech.com http://www.on-the-i.com Test your network for multicast : http://www.multicasttech.com/mt/ Check the status of multicast in real time : http://www.multicasttech.com/status/index.html
Both C&W and Digex/Intermedia had websites that showed this information. However, this was only shows within that provider's network, not to other networks. -Chris On Thu, Aug 23, 2001 at 08:33:56AM -0700, Brian wrote:
I once worked for a company that wrote a unix script that worked like this. Basically imagine a quare chart will all the pops listed across the top and down the left side. Every few minutes, each pop tries a small ping burst to ping all of the others, and the values are filled into the chart. Results are color coded as green, yellow, and red.
Brian
----- Original Message ----- From: "Sam Thomas" <sthomas@lart.net> To: "mike harrison" <meuon@highertech.net> Cc: "Grant A. Kirkwood" <grant@virtical.net>; "Sean Donelan" <sean@donelan.com>; <nanog@merit.edu> Sent: Thursday, August 23, 2001 7:27 AM Subject: Re: Measuring PoP to PoP latency--tools to use?
when someone asked me to do something like this, i waded through caida's site and came accross this:
http://www-iepm.slac.stanford.edu/pinger/
it's pretty cool stuff. requires *nix box, perl5, and some sort of webserver software to produce simple reporting. there's also (optionally) utilities that draw some pretty graphs that require gnuplot/ppmtogif.
imho, this is considerably better than logging into your router to do
this.
routers are much better at forwarding packets than sending/receiving them. (except older non-distributed routers, which aren't particularly great at either for high traffic volumes) other bonus: no automated sending of passwords from a box that might not get much admin attention.
one could probably modify these tools to use fping, but i just played around with them for edutainment purposes. there's no mention of copyright that i can find, but one should ask before using for commercial purposes.
On Thu, Aug 23, 2001 at 08:32:17AM -0400, mike harrison wrote:
It was cheesy, and not particularly scientific, but I've been trying
to
find something like that to implement for the marketing folk. It could probably be adapted into something more useful to us though. Suffice it
fping, from Stanford originally, now at www.fping.com might be useful, it pings multiple hosts at the same time (fast, efficient) It has easy to parse output and easily gives results like:
fping -e <targets www.chatt.net is alive (0.32 ms) www.att.net is alive (27.5 ms) www.uu.net is unreachable
-- Sam Thomas Geek Mercenary
-- --------------------------- Christopher A. Woodfield rekoil@semihuman.com PGP Public Key: http://pgp.mit.edu:11371/pks/lookup?op=get&search=0xB887618B
participants (8)
-
Brian -
Christopher A. Woodfield -
E.B. Dreger -
Grant A. Kirkwood -
Marshall Eubanks -
mike harrison -
Sam Thomas -
Sean Donelan