[HanoiLUG] Re: big Internet slowdown...

[Jean-Christophe Andre]

Quoting David Favro <hanoilug at meta-dynamic.com>:
> Is this getting better?

I saw some enhancement from VDC right 1 day after the problem and only
2 days for FPT.

> I am still seeing long latency and high packet loss between VN and USA.
> But honestly, that performance has never been great, so I am not sure
> if we're degraded or back to the usual crappy baseline.

It probably depends on your provider and kind of network link, because
on my side I usualy have a 330 ms RTT to Montreal with < 2% packet loss.

Right now I get 450 ms RTT with < 5% packet loss using VDC2 (HCMC),
but I still get 700 ms RTT with > 60% packet loss using FPT...

> Interesting information on the damaged cables here: 
> http://www.convergedigest.com/Bandwidth/newnetworksarticle.asp?ID=20266
> Some interesting graphs here: http://www.internettrafficreport.com/asia.htm

Really interesting links, thanks!

> I have read several reports that it will will be late January or 
> early February before all cables are repaired.

The Vietnam Net News talked about 3 weeks. They are working on it offshore
and of course it's probably not easy to repair some submarine cable... :-(

> I assume that VN-to-VN performance is not degraded?

Not as far as I can see. I still have good performances between Hanoi,
Danang and HCMC.

> If not, perhaps caching-proxy could improve the situation --

Oh?! You realy don't know that most ISP are *already* using transparent
proxying on they dynamic linked customers (said RTC & ADSL)?! :-)

They are using that kind of Cisco craps letting some dynamic websites
unusable (where they are through Squid though)...

> VoIP, email, etc. cannot benefit, but most web-sites are relatively
> static.  It could be done on a national, ISP, or local-network basis
> -- whatever the configuration, we're all sharing the same few pipes,
> and it's a pity to waste them on unnecessary re-transfers of static
> data (how many times does the "welcome-signin" page of Yahoo Mail get
> loaded every day in internet shops all over the country?).

What could be interesting is to propose a plan to develop hierarchic
proxy caching, using Squid for example, like we do in France on RENATER
(the national research and education network) or even more impressively
in Japan, with proxy/cache in *both* direction (!) allowing global caching
and quick access to almost any japanese website.
-- 
Jean-Christophe Andre
Agence universitaire de la Francophonie - Bureau Asie-Pacifique