Troubleshooting Xen's Networking

In our experience, troubleshooting Xen's networking is a straightforward process, given some general networking knowledge. Unless you've modified the networking scripts, Xen will fairly reliably create the vif devices. However, if you have problems, here are some general guidelines.(We'll focus on network-bridge here, although similar steps apply to network-route and network-nat.)

To troubleshoot networking, you really need to understand how Xen does networking. There are a number of scripts and systems working together, and it's important to decompose each problem and isolate it to the appropriate components. Check Chapter 5 for a general overview of Xen's network components.

The first thing to do is run the network ...

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