[ovs-discuss] Error: RTNETLINK answers: File exists. MAC duplicate

Denis Iskandarov d.iskandarov at gmail.com
Wed Oct 24 07:24:04 UTC 2012


1. RTNETLINK answers: File exists.
My suggestion was based on this thread:
http://www.linuxquestions.org/questions/linux-networking-3/rtnetlink-answers-file-exists-542525/
So you are saying that in usual simplest setup this "error" doesn't exist?
With ovs 1.7.1, CentOS6.3x64 - who approve or refute this?
Maybe something wrong with ifup/down scripts ?
Here are all logs i can provide:

> Bringing up interface br0:                                 [  OK  ]
> Bringing up interface eth0:  RTNETLINK answers: File exists [  OK  ]

> Oct 24 10:53:04 alpha ovs-vsctl: 00001|vsctl|INFO|Called as ovs-vsctl -t 10 -- --if-exists del-br br0
> Oct 24 10:53:04 alpha kernel: device eth0 left promiscuous mode
> Oct 24 10:53:04 alpha ovs-vsctl: 00001|vsctl|INFO|Called as ovs-vsctl -t 10 -- --if-exists del-port br0 eth0
> Oct 24 10:53:04 alpha ovs-vsctl: 00001|vsctl|INFO|Called as ovs-vsctl -t 10 -- --may-exist add-br br0
> Oct 24 10:53:04 alpha kernel: device br0 entered promiscuous mode
> Oct 24 10:53:08 alpha ovs-vsctl: 00001|vsctl|INFO|Called as ovs-vsctl -t 10 -- --may-exist add-br br0
> Oct 24 10:53:08 alpha kernel: r8169 0000:03:00.0: eth0: link down
> Oct 24 10:53:08 alpha kernel: r8169 0000:03:00.0: eth0: link down
> Oct 24 10:53:08 alpha ovs-vsctl: 00001|vsctl|INFO|Called as ovs-vsctl -t 10 -- --may-exist add-port br0 eth0
> Oct 24 10:53:08 alpha kernel: device eth0 entered promiscuous mode
> Oct 24 10:53:08 alpha ovs-vsctl: 00001|vsctl|INFO|Called as ovs-vsctl -t 10 -- --may-exist add-br br0
> Oct 24 10:53:10 alpha kernel: r8169 0000:03:00.0: eth0: link

> br0       Link encap:Ethernet  HWaddr 30:85:A9:EB:B8:87
>           inet addr:192.168.1.254  Bcast:192.168.1.255  Mask:255.255.255.0
>           UP BROADCAST RUNNING PROMISC MULTICAST  MTU:1500  Metric:1
>           RX packets: --OMITTED--
> eth0      Link encap:Ethernet  HWaddr 30:85:A9:EB:B8:87
>           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>           RX packets: --OMITTED--

2 "ovs-vsctl add-br" it creates bridge and i just need to create
network script for this bridge if i want to add options?

3. yes i'm talking about compatibility
So how can i remove it after "successful" integration ? (i did by doc
insmod and ovs-brcompatd )
And better to remove bridge-utils as well, no ?



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