[ovs-discuss] how to avoid loops

[Jesse Gross]

On Thu, Aug 1, 2013 at 3:45 AM, Vasiliy Tolstov <v.tolstov at selfip.ru> wrote:
> Hello again.
> I'm successeful using mptcp with openvswitch bridges (i'm create for
> eatch eth device own bridge device and connect it to main bridge with
> patch ports). But have strange loops
> My config for ovs is :
>
>     Bridge "ext0"
>         Port "ext0"
>             Interface "ext0"
>                 type: internal
>         Port "eth0"
>             Interface "eth0"
>         Port "ext0-data"
>             Interface "ext0-data"
>                 type: patch
>                 options: {peer="data-ext0"}
>     Bridge ovs
>         Port data
>             Interface data
>                 type: internal
>         Port ovs
>             Interface ovs
>                 type: internal
>         Port "data-ext1"
>             Interface "data-ext1"
>                 type: patch
>                 options: {peer="ext1-data"}
>         Port "data-ext0"
>             Interface "data-ext0"
>                 type: patch
>                 options: {peer="ext0-data"}
>     Bridge "ext1"
>         Port "eth1"
>             Interface "eth1"
>         Port "ext1-data"
>             Interface "ext1-data"
>                 type: patch
>         Port "ext1"
>             Interface "ext1"
>                 type: internal
>
>
> this means that
> eth0 connected to ext0 ovs device and have address 172.16.1.1
> eth1 connected to ext1 ovs device and have address 172.16.2.1
>
> ext0 and ext1 connected with ovs bridge that have ip from another
> network (external)
>
> All works but that i have another server with this config (another
> server that forwarding packets to external net) i have loops.
> Another server have ip 172.16.1.2 and 172.16.1.2.
>
> Earch server connects with
> srv1 eth0 to sw1p1 and eth1 to sw2p1
> srv2 eth0 to sw1p2 and eth1 to sw2p2

This effectively amounts to a bond, so I think you would have better
luck configuring it that way directly.
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