[AusNOG] Best roundtrip latency to Israel?

[Clay Quinn]

I knew I could depend on AusNOG to explore every option - thanks :)



A colleague of mine suggested to VPN to a point half-way along the alternate direction (eg India) and see if the connection would be routed through Europe from there.  Could reduce the latency significantly, worth a shot.  Will let you know if I succeed.



Also some others suggested to tweak the TCP settings, which I will also look into – again, thanks.





Cheers

Clay


From: AusNOG [mailto:ausnog-bounces at lists.ausnog.net] On Behalf Of Kim Pearce
Sent: Tuesday, 13 September 2016 2:05 PM
To: ausnog at lists.ausnog.net
Subject: Re: [AusNOG] Best roundtrip latency to Israel?

And if you drill, it is a 20,000km round trip - ~(10,000km along the chord from SYD to TLV)

On Tue, Sep 13, 2016 at 2:00 PM, Mark Andrews <marka at isc.org<mailto:marka at isc.org>> wrote:

In message <AM5PR0301MB24814072C2675F44C808F43AD2FE0 at AM5PR0301MB2481.eurprd03.prod.outlook.com<mailto:AM5PR0301MB24814072C2675F44C808F43AD2FE0 at AM5PR0301MB2481.eurprd03.prod.outlook.com>>, Clay Quinn writes:
>
> Hi All,
>
> An oddball question - is anyone using services over Internet to Israel
> (VPN etc), and if so what is your round-trip latency?  From a Telstra TID
> connection I'm getting around 400ms (Sydney, LA, New York, UK, France,
> Israel).  I'm curious if there's a less-latent path on another
> provider/route (RDP sessions are painfully slow).

SYD to TLV is 8813 great circle miles (14183km).  This gives a lower
bound on a terrestrial path unless you start drilling.

> Using 30,000km as an estimate for the fibre distance, that gives a
> theoretical minimum latency of 300ms (0.5us/km * 30,000km * both
> directions).  So there's an additional 100ms of overhead there (OEO
> conversions probably - 30 hops in traceroute).
>
> If that's par for the course, I guess WAN acceleration is really the only
> option - I understand it's a pretty long path.  If anyone has any unique
> solutions to this problem I'd love to hear it.
>
>
> Cheers
> Clay
>
> Clay Quinn
> Presales Engineer
> MRV Communications Pty Ltd.
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