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

Ben Pfaff blp at nicira.com
Thu Mar 5 17:10:03 UTC 2015


On Wed, Mar 04, 2015 at 01:34:07PM -0500, Krishna Pratap wrote:
> Im not sure what is wrong with ovs installed with my system yet. its weird
> it would complain of non existence of bridge when we try to set its MAC
> address because I explicitly create the bridge first. what about the "set
> interface br0  mac=\"00:15:17:a0:29:80\"" command. isnt br0 local interface
> treated as interface?
> 
> 
>  here are the steps that I do and its output. any suggestions?

I don't know.  I can't reproduce the problem here; similar steps work
for me:

    root at debian:~# ovs-vsctl set bridge br1 other-config:hwaddr=\"00:15:17:a0:29:80\"
    root at debian:~# ifconfig br1
    br1       Link encap:Ethernet  HWaddr 00:15:17:a0:29:80  
              BROADCAST MULTICAST  MTU:1500  Metric:1
              RX packets:0 errors:0 dropped:0 overruns:0 frame:0
              TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
              collisions:0 txqueuelen:0 
              RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

    root at debian:~# ifconfig br1 up
    root at debian:~# ovs-vsctl set bridge br1 other-config:hwaddr=\"00:15:17:a0:29:81\"
    root at debian:~# ifconfig br1
    br1       Link encap:Ethernet  HWaddr 00:15:17:a0:29:81  
              inet6 addr: fe80::215:17ff:fea0:2980/64 Scope:Link
              UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
              RX packets:0 errors:0 dropped:0 overruns:0 frame:0
              TX packets:4 errors:0 dropped:0 overruns:0 carrier:0
              collisions:0 txqueuelen:0 
              RX bytes:0 (0.0 B)  TX bytes:308 (308.0 B)

    root at debian:~# ovs-ofctl dump-ports-desc br1
    OFPST_PORT_DESC reply (xid=0x2):
     LOCAL(br1): addr:00:15:17:a0:29:81
         config:     0
         state:      0
         speed: 0 Mbps now, 0 Mbps max
    root at debian:~# 



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