20 Jul
2015
20 Jul
'15
10:32 p.m.
Folks:
I have set up Iperf on my side to do some testing in both TCP and UDP modes
as follows:
TCP -> port 7000
UDP -> port 7001
If you have Iperf installed on your Linux machine, do you mind doing a
couple of runs and reporting on the results?
Thanks,
Assi
kk7kx/4x1kx
On Mon, Jul 20, 2015 at 9:42 AM, Marc, LX1DUC <lx1duc(a)laru.lu> wrote:
(Please trim inclusions from previous messages)
_______________________________________________
On 2015-07-20 17:41, Assi Friedman wrote:
(Please trim inclusions from previous messages)
_______________________________________________
Folks:
I just brought my ampr host back online after moving to a new facility.
My
initial configuration is to enable internet <-> amprnet connectivity. So
I
have all traffic in both incoming and outgoing directions routed IPIP'd
via
UCSD. The host is Linux Fedora based (will be transitioning to CentOS
sometime...) and I used the guidelines set on the wiki. One unexpected
thing is packet loss. I am seeing very slow performance using this
approach
and rather poor packet loss. Are there any issues or QoS policies
implemented on the amprnet router at UCSD?
Thank you,
Assi kk7kx/4x1kx
AMPRNet host: kk7kx.ampr.org (icmp & http only for now)
Internet host: phantom.kiloxray.com (hosts kk7kx)
Performance issues might be related to the tunnels reduced MTU and hence
reduced TCP MSS. You want to "clamp" the TCP MSS. You may also make sure
that you do not filter ICMP DTB messages, just in case some
systems/softwares make of the DF bit.
Packet loss is a different issue, obviously there will be no performance
when you have packet loss. So in any case you will have to fix the packet
loss first.
73 de Marc, LX1DUC
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