[Fedora-xen] guest domain couldn't be started

[taoj2 at cs.rpi.edu]

Hi,

I install a guest Fedora inside the host Fedora. When I use the

service xend status

to check the status of xend. It shows xend is running.

However when I use

xm create xen1

to start the guest domain xen1, it failed. The corresponding file xen1 is
in /etc/xen/xen1. The error msg is as follows:

[root at phillis xen]# xm create xen1
Using config file "./xen1".
Going to boot Fedora Core (2.6.19-1.2911.6.5.fc6xen)
  kernel: /vmlinuz-2.6.19-1.2911.6.5.fc6xen
  initrd: /initrd-2.6.19-1.2911.6.5.fc6xen.img
Error: Device 0 (vif) could not be connected. Could not find bridge device
xenbr1

I found the following line in file /etc/xen/xen1,
vif = [ 'mac=00:16:3e:5c:5c:31, bridge=xenbr1', ]

Why device 0 couldn't be connected? I don't know the usage of the bridge
device, xenbr1.

Anybody has similar problem ? Or know how to slove this problem? THanks.

Best
Angel