[ovs-discuss] How to set the MAC address of bridge local port

Krishna Pratap singh.pratapkrishna at gmail.com
Tue Mar 3 17:51:18 UTC 2015


I tried bringing the port up. it doesn't change any thing. here is the
output.


root at ccpu5:~# ovs-vsctl  set bridge br0
other-config:hwaddr=\"00:15:17:a0:29:80\"
root at ccpu5:~#
root at ccpu5:~#
root at ccpu5:~# ovs-ofctl dump-ports-desc br0
OFPST_PORT_DESC reply (xid=0x2):
 LOCAL(br0): addr:16:0a:05:2e:20:bc
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
root at ccpu5:~#
root at ccpu5:~#
root at ccpu5:~#
root at ccpu5:~# ifconfig br0
br0       Link encap:Ethernet  HWaddr 16:0a:05:2e:20:bc
          inet6 addr: fe80::140a:5ff:fe2e:20bc/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:6 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:0 (0.0 B)  TX bytes:468 (468.0 B)


On Tue, Mar 3, 2015 at 12:46 PM, Ben Pfaff <blp at nicira.com> wrote:

> On Tue, Mar 03, 2015 at 11:28:27AM -0500, Krishna Pratap wrote:
> > Is it possible to set the MAC address of the local port of bridge( not
> the
> > address of bridge itself) with a fixed address?
> >
> > I tried couple of ways to do it. one of them mentioned here in this old
> > thread
> > http://openvswitch.org/pipermail/discuss/2011-June/005297.html
> >
> > i tested this one out but it doesn't change the mac address of port br0.
> > here is what I did.
> >
> > root at ccpu:~# ovs-vsctl add-br br0 -- set bridge br0
> > other-config:hwaddr=\"00:15:17:a0:29:80\"
> > root at ccpu5:~# ovs-ofctl dump-ports-desc br0
> > OFPST_PORT_DESC reply (xid=0x2):
> >  LOCAL(br0): addr:ce:09:03:00:00:00
> >      config:     PORT_DOWN
> >      state:      LINK_DOWN
> >      speed: 0 Mbps now, 0 Mbps max
> >
> >
> > As we can see the Mac address doesn't change. it does update the bridge
> > table's other-config column .
>
> I think that should work.
>
> I notice that the port is down.  Does it make any difference to bring it
> up?
>



-- 
Best Regards,
Krishna Pratap Singh
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