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xen-users
Re: [Xen-users] question re xen bridging: how would I enable different n
Benjamin Weaver wrote:
I have a 2-node xen cluster set up on 2 identical Linux Squeeze
boxes. An ifconfig on one of the boxes is shown below.
The only bridge configuration on our system is this:
(network-script 'network-bridge netdev=eth0')
eth0 shows up as a bridge. A 'brctl showmacs eth0' indicates as
much. I would expect this, given my network-script line given above.
OK, look back (not too far) in the archives and you'll find plenty of
advice to forget the Xen scripts (which I believe are being
deprecated) and do it in the OS. Debian has good tools for setting up
bridges, and all it takes is this in /etc/network/interfaces :
auto ethext
iface ethext inet static
bridge_ports pethext
address a.b.c.d
netmask 255.255.255.0
You can rename your interfaces by editing
/etc/udev/rules.d/70-persistent-net-rules
Note that the interfaces file does *not* have an entry for pethext.
1. Is eth0 in my configuration, both the dom0 logical interface and
the xen bridge? It would have to be, which I do not understand,
since I don't think a bridge can be an interface and vice versa.
Yes.
What you are missing is that you can treat a bridge as an interface,
give it an IP address, and shunt packets through it. This is the
normal way to set one up.
3. how would I configure the system so that the dom0 logical
ethernet interface is named differently from the xen bridge?
3a. how, for example, would I name my bridge xenbr0?
See above - I have a bridge called ethext, and a physical interface
called pethext. These can be anything you want (within reason).
--
Simon Hobson
Visit http://www.magpiesnestpublishing.co.uk/ for books by acclaimed
author Gladys Hobson. Novels - poetry - short stories - ideal as
Christmas stocking fillers. Some available as e-books.
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