Hello,
I write this to ask network operators to share your statistics of this
flash crowd with NANOG.
For example, if possible, could NASA folks let us know the peak and
average hit rate to NASA TV (rtsp://198.116.66.254) or the traffic rates
on the routers leading into this server? (border.hcn.hq.nasa.gov and
realhq.hq.nasa.gov)
Similarly, for UUnet folks (as you're the provider) or anyone that has
collected statistics that they're willing to share.
Graphical (MRTG-esq) would be the best. If folks don't want to hear about
this, I'll take any info privately and summarize to anyone that asks me.
Thanks,
scott
Hello,
I write this to ask network operators to share your statistics of this
flash crowd with NANOG.
For example, if possible, could NASA folks let us know the peak and
average hit rate to NASA TV (rtsp://198.116.66.254) or the traffic rates
on the routers leading into this server? (border.hcn.hq.nasa.gov and
realhq.hq.nasa.gov)
This sounds like fabulous data to see.
Similarly, for UUnet folks (as you're the provider) or anyone that has
collected statistics that they're willing to share.
Unfortunately UUNET doesn't provide connectivity to this, except for UUNET
customers, NASA is not a direct customer...
Thanks for the response Chris. I should not have used the word
"provider" when speaking of NASA. All the traceroutes I have done show
hand-off from your company though. For example:
9 193.ATM4-0.BR2.SJC1.ALTER.NET (152.63.51.181)
[...]
13 border.hcn.hq.nasa.gov (198.116.63.2)
14 realhq.hq.nasa.gov (198.116.66.254)
and
10 POS6-0.BR3.DCA6.ALTER.NET [152.63.38.117]
[...]
14 border.hcn.hq.nasa.gov [198.116.63.2]
15 realhq.hq.nasa.gov (198.116.66.254)
BTW folks are interested, but there is little data coming in to share.
As time goes on, I hope folks that show unusual traffic levels (on both
sides; eyeball networks and content networks as well as transit networks)
will send pointers to me that I can share with others. I am very
interested in flash crowd situations and how to mitigate the problems
associated with them...
scott
Historically providers have been reluctant to provide that level of
detail concerning traffic levels. A few providers, generally smaller
ones, do make MRTG graphs available. Once in a while a provider will
announce they had X Peta/Terrabytes of traffic for some time period.
But most prefer measurements which can not be correlated with revenue
(e.g. packet drops, latency, jitter, availability, etc).
I didn't see any noticable change on Abovenet/MFN's public MRTG graphs
at MAE-West/MIX-West. Keynote/Matrix public data show no visible changes
of the web sites they measure. They may have some private data which
shows more details.
Of course, NASA is a US federal agency, so you can always try the Freedom
of Information Act (FOIA). But they have other things to do today.
Hi,
Whilst our statistics may be important let us also not forget the seven families for whom today has been a nightmare.
Steve Dyer
There is not a big spike in multicast traffic as there was on 9/11/2001.
NASA TV multicast only has reports from 3 viewers at present, which suggest
a total viewership of 10 or less.
Regards
Marshall Eubanks
BTW folks are interested, but there is little data coming in to share.
As time goes on, I hope folks that show unusual traffic levels (on both
sides; eyeball networks and content networks as well as transit networks)
will send pointers to me that I can share with others. I am very
interested in flash crowd situations and how to mitigate the problems
associated with them...
Historically providers have been reluctant to provide that level of
detail concerning traffic levels. A few providers, generally smaller
ones, do make MRTG graphs available. Once in a while a provider will
announce they had X Peta/Terrabytes of traffic for some time period.
But most prefer measurements which can not be correlated with revenue
(e.g. packet drops, latency, jitter, availability, etc).
I didn't see any noticable change on Abovenet/MFN's public MRTG graphs
at MAE-West/MIX-West. Keynote/Matrix public data show no visible changes
of the web sites they measure. They may have some private data which
shows more details.
Of course, NASA is a US federal agency, so you can always try the Freedom
of Information Act (FOIA). But they have other things to do today.
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.multicasttech.com
Test your network for multicast :
http://www.multicasttech.com/mt/
Status of Multicast on the Web :
http://www.multicasttech.com/status/index.html
Historically providers have been reluctant to provide that level of
detail concerning traffic levels. A few providers, generally smaller
ones, do make MRTG graphs available. Once in a while a provider will
announce they had X Peta/Terrabytes of traffic for some time period.
But most prefer measurements which can not be correlated with revenue
(e.g. packet drops, latency, jitter, availability, etc).
You mean a lot like when IE 5 first came out? As a result, I got the
priviledge of shutting one of my providers off. 
It's sad when a 3Mb pipe
is prefered over a 12Mb pipe; even sadder when it's actually faster. Glad I
learned my lessons before I really learned the meaning of bandwidth.
-Jack
: Whilst our statistics may be important let us also not forget the seven
: families for whom today has been a nightmare.
No, let's don't forget. Although I use an old unix account in Maui, I now
live in Friendswood, Texas. 3 miles from Ellington and 5 or so miles from
NASA's JSC. My family members have worked for NASA since the Mercury
mission. NASA employees live next door and all around the area. It is a
sad day here. Tomorrow the churches will be full...
scott
ps. My apologies for so many posts, but I felt the need to do one last
one.