[opensuse] ipv6 slower than ipv4?
Well, not in principle, but in practice: wget -O /dev/null -4 -nd http://suse.uni-leipzig.de/pub/ftp.opensuse.org/opensuse/factory/repo/oss/su... Took 8.7sec at 5.56MB/s wget -O /dev/null -6 -nd http://suse.uni-leipzig.de/pub/ftp.opensuse.org/opensuse/factory/repo/oss/su... Took 4m27s at 156KB/s. It obviously depends on the infrastructure etc, but that's a factor 33 difference. -- Per Jessen, Zürich (12.9°C) http://www.dns24.ch/ - free dynamic DNS, made in Switzerland. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
Per Jessen wrote:
Well, not in principle, but in practice:
wget -O /dev/null -4 -nd http://suse.uni-leipzig.de/pub/ftp.opensuse.org/opensuse/factory/repo/oss/su...
Took 8.7sec at 5.56MB/s
wget -O /dev/null -6 -nd http://suse.uni-leipzig.de/pub/ftp.opensuse.org/opensuse/factory/repo/oss/su...
Took 4m27s at 156KB/s.
It obviously depends on the infrastructure etc, but that's a factor 33 difference.
If you had measured something down under 1%, that would expected as IPv6 has larger headers. But 33x?! Sounds like you have no direct IPv6 connectivity and things are being badly routed through V4 gateways. That was exactly why it was recommended to prefer an IPv4 route over IPv6 route last year -- because people had local IPv6 "connectivity" be were really being routed over 6-in-IPv4 tunnels to other isolated pockets where it was unpacked...Maybe you are getting routed through someone's home router? ;-) -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
Linda Walsh wrote:
Per Jessen wrote:
Well, not in principle, but in practice:
wget -O /dev/null -4 -nd
http://suse.uni-leipzig.de/pub/ftp.opensuse.org/opensuse/factory/repo/oss/su...
Took 8.7sec at 5.56MB/s
wget -O /dev/null -6 -nd
http://suse.uni-leipzig.de/pub/ftp.opensuse.org/opensuse/factory/repo/oss/su...
Took 4m27s at 156KB/s.
It obviously depends on the infrastructure etc, but that's a factor 33 difference.
---- If you had measured something down under 1%, that would expected as IPv6 has larger headers. But 33x?! Sounds like you have no direct IPv6 connectivity and things are being badly routed through V4 gateways.
Nope, we have our own /56 and a 100MBit/s fibre upstream.
That was exactly why it was recommended to prefer an IPv4 route over IPv6 route last year -- because people had local IPv6 "connectivity" be were really being routed over 6-in-IPv4 tunnels to other isolated pockets where it was unpacked...Maybe you are getting routed through someone's home router? ;-)
It is a bit weird - last night, I got virtually the same throughput on ipv4 and ipv6 (for suse.uni-leipzig.de), but now it's back to the abysmal numbers above. For other sites, e.g. ftp5.gwdg.de, the throughput is normal. I wonder if uni-leipzig might have a daytime governor to limit the mirror download speeds. -- Per Jessen, Zürich (7.2°C) http://www.dns24.ch/ - your free DNS host, made in Switzerland. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
participants (2)
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Linda Walsh -
Per Jessen