I sent a series that adds these features:
https://patchwork.ozlabs.org/project/openvswitch/list/?series=24270
On Thu, Jan 18, 2018 at 09:34:40AM +1300, Brad Cowie wrote:
> We've had a bit of a think about this, variable length probably isn't too
> important (static 64b is probably fine),
We've had a bit of a think about this, variable length probably isn't too
important (static 64b is probably fine), but yes, being able to set those
64 bytes will be quite useful with say with an extra "payload=0xC0FEFE"
argument on ofproto/trace.
Brad
On 18 January 2018 at 07:17, Ben Pfaff
OK, sounds good.
Do you think you need the ability to inject payloads of a specific
length or content? It's easy to, for example, always generate 64 bytes
of payload, but it would be a little more challenging to plumb through
extra data or metadata.
On Mon, Jan 15, 2018 at 01:48:10PM +1300,
Hi Robin,
Glad this is working for you now.
At step 6, I'm not entirely sure why the packet doesn't end up being caught
in tcpdump (it doesn't for me either), but we see from the action from
ofproto/trace:
Datapath actions:
Hi Ben,
We looked a bit closer at this problem, and turns out the packet header
size we were getting back from Ryu wasn't what we were expecting. We're now
calculating this correctly ourselves (instead of relying on Ryu) which
removes the need for disabling the IP header length check in the
Thanks, Brad!
ARP request broadcast is now seen with faucet 1.6.15 and the modified
faucet.yaml.
But at a follow step 'Step 6: IP Packet Delivery',
/usr/sbin/tcpdump -evvvr sandbox/p4.pcap ip
does not show any IP packet even I have re-sent the UDP one.
-robin
On Sat, Jan 6, 2018 at 7:07 AM,
[dropping OP, who probably doesn't care]
On Sat, Jan 06, 2018 at 12:07:09PM +1300, Brad Cowie wrote:
> What happened is that in faucet 1.6.12 we added a bunch of new packet
> handling sanity checks to help improve security of faucet's packet
> handling. Packets made by ofproto/trace -generate
Hi Robin,
I'm part of the faucet team and we reproduced your issue at our end and
have produced a fix/workaround.
What happened is that in faucet 1.6.12 we added a bunch of new packet
handling sanity checks to help improve security of faucet's packet
handling. Packets made by ofproto/trace
Hi,
I am new to OVS and just doing 'OVS Faucet Tutorial'.
But everything is OK until 'Step 4: Router Broadcasts ARP Request',
the router does not send ARP broadcast requrest in my environment.
After I run:
ovs-appctl ofproto/trace br0
