hi,

the default network-bridge renames network interfaces and often confuse people.

this patch changes the network-bridge schema to:

# start:
# Creates the bridge
# Copies the IP and MAC addresses from netdev to bridge
# Enslaves netdev to bridge
#
# stop:
# Removes netdev from the bridge
# Transfers addresses, routes from bridge to netdev
# Deletes bridge

No rename will be performed.  Eg.

# brctl show
bridge name     bridge id               STP enabled     interfaces
xenbr0          8000.000e0cd85dfe       no              eth0

IP/route will be transfered to xenbr0 at start.

I also add a extra script network-bridges to perform on all ethernet cards.
and network-dummy if user doesn't want to xend to manage dom0 networking.

This patch obsolete my last patch, titled: [PATCH]Fix network-bridge ifup problem.

CC to Daniel for comments.

Signed-off-by: Zhigang Wang <zhigang.x.wang@oracle.com>

thanks,

zhigang