Re: [Qemu-devel] [RFC PATCH v2 00/10] Add colo-proxy based on netfilter

[Eric Blake]

On 01/22/2016 12:46 AM, Wen Congyang wrote:
...

>>>>>>>>>>>>>>>>>>>>>>>>> On 01/20/2016 11:29 AM, Zhang Chen wrote:
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Sure.

Wow, that's a lot of wasted quoting.  Your mail weighed in at 24k, even
though...


>> Thanks. I think I get the point. So if there's a difference, primary
>> packet will only be sent after checkpoint and we could not assume the
>> checkpoint itself is reliable.
> 
> Yes.
> 
>>
>> Back to the filters design. We'd better still decouple packet comparing
>> out of netdev. Maybe a little bit more tweak on what you've suggested:
>>
>> -netdev tap,id=hn0
>> -object traffic-mirrorer,id=f0,netdev=hn0,queue=tx,outdev=mirrorer0
>> -object
>> traffic-redirector,id=f1,netdev=hn0,queue=rx,outdev=comparer0,indev=comparer2
>> -colo-comparer
>> primary_traffic=comparer0,secondary_traffic=comparer1,outdev=comparer2
>>
>> Just add one more socket for comparer for sending primary packet, and
>> let f1 redirector its output to netdev?
> 
> OK, I understand it now.
> Thanks for your suggestion.

...content-wise, you only added about 100 bytes.  It's okay to trim
replies down to relevant portions, to make it easier for readers to get
to the meat of your message.

-- 
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org

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