xen bridge with vlan

http://erl.wustl.edu/documents/xen-vlan.txt

C. Create an Installation Configuration File
Here is the installation file for "pkvlantest" - note that xbr_v100 is being
used (for the DMZ network):

[root@xentest xen]# more pkvlantest
kernel = "/home/koppel/vmlinuz"
ramdisk = "/home/koppel/initrd.img"
name = "pkvlantest"
maxmem = 512
memory = 512
vcpus = 1
on_poweroff = "destroy"
on_reboot = "destroy"
on_crash = "destroy"
vfb = [ "type=vnc,vncunused=1,keymap=en-us" ]
disk = [ "tap:aio:/var/lib/xen/images/pkvlantest.img,xvda,w" ]
vif = [ "mac=00:16:3e:18:35:76,bridge=xbr_v100" ]