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