[ovs-discuss] Getting OpenFlow Set Up

Henrique Rodrigues henriquesilvar at gmail.com
Mon Oct 18 10:44:14 UTC 2010


Hi Justin

On Sun, Oct 17, 2010 at 10:36 PM, Justin Pettit <jpettit at nicira.com> wrote:

> On Oct 17, 2010, at 5:28 PM, Derek Cormier wrote:
>
> > When you add ports to a virtual bridge, should you still be able to ping
> them? For some reason, I cannot ping the interface on the switch that a host
> connects to. Yet, I can ping another host.
>
> Do you mean, for example, if you add eth0 to br0, you can't ping the
> address assigned to eth0?  If so, then, no, you cannot ping the addresses of
> attached devices.


Why not? I also noticed that...

As far as I know, after receiving a packet, the datapath will send a message
to the ovs-vswitchd stating that there is no rule matching that packet. Upon
receiving this "missed flow message", ovs-vswitchd can check if the paket
ip_dst matches one of its local interfaces' addresses and is able to answer
the question telling the datapath to send the packet to the running kernel
IP stack. Is there any rule prohibiting this behavior?



> You can assign the IP address to br0, though, and that should work.
>
> --Justin
>
>
>
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-- 
Henrique Rodrigues
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