Over the course of our time in the field spent working on Citrix Xenserver issues, we have encountered networking problems within Xenserver a few times. These networking problems included symptoms like packet loss in VM to VM communications across a Xenserver host. Some of the Xenserver networking problems included packet loss or latency from a Xenserver host’s physical interface out to the WAN. In order to make troubleshooting a little easier for us next time, and to share with the community – We’ve compiled this little Xenserver networking troubleshooting guide:
Step 1: Collect a server status report from the Xenserver host, and upload it to the Citrix automated tool for analysis online at http://taas.citrix.com — This is a new feature that Citrix has added to their website, which will analyze Citrix Xenserver status reports and provide quick feedback. Some of the feedback you might get would be to update your BIOS on the xenserver host, or maybe change a network interface driver out, etc. We’ve seen recommendations to change BIOS settings also, as well as recommendations to engage the physical hardware manufacturer for support. Overall this has been a very useful tool that Citrix has made available via the web!