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IPv6 tunnel speed vs IPv4 speed
![[de]](/s/countries/de.gif) Shadow Hawkins on Friday, 28 November 2003 00:02:36
Hello,
on my IPv6 enabled Linux box I ran mirrorselect of Gentoo Linux (which downloads files from any mirror to test which one is the fastest). I was somewhat surprised that ftp.ipv6.uni-erlangen.de seems the fastest for me and I wonder if mirrorselect is somewhat flawed when testing ipv6 servers.
The latency to the POP is realatively good and the tunnel works stable now (after unblocking proto-41) and a test download from ipv6.uni-erlangen almost fills my downstream. But it sounds strange that ipv6.uni-erlangen.de is faster than every other mirror I can reach.
Comments?
IPv6 tunnel speed vs IPv4 speed
Shadow Hawkins  on Friday, 28 November 2003 12:44:38
Why are you astonished about this? OK, a packet takes a little scenic route
Erlangen - Berlin - Munich - Nuremberg - Frankfurt - You, but the whole
IPv6 path apart from your tunnel is native with at least 34Mbps and lots
of spare capacity.
Robert
IPv6 tunnel speed vs IPv4 speed
Shadow Hawkins on Friday, 28 November 2003 18:17:21
It just sounds somewhat surprising that the advantage easily compensates the overhead when tunneling one protocol into another and choosing an indirect route (me -> pop -> erlangen). The ipv4 address of uni-erlangen was tested too, along with some other servers which have some hops less than the ipv6 path
Another reason might be that I tested another tunnel some time ago which was so slow that you couldn't use it for much more than pinging. :)
I'll do some more serious testing some days later when I qualify for a subnet delegation and connect my main boxes to the IPv6 internet.
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