[sfc-dev] [groupbasedpolicy-dev] The required Changes on GBP side for SFC integration

Keith Burns alagalah at noironetworks.com
Tue Mar 10 16:53:20 UTC 2015


Excellent.
On Mar 10, 2015 9:48 AM, "Reinaldo Penno" <rapenno at gmail.com> wrote:

> Yi recently finished the RPC API and now is working on a generic API that
> allows GBP to ask a path/chain based on a generic list of service types.
> But last I talked with Thomas he was preparing a final patch so we could
> test basic integration between projects.
>
> I think having this final patch so we can start doing basic testing will
> allow us to get some experience and feedback into the next phases.
>
> From: Keith Burns <alagalah at noironetworks.com>
> Date: Tuesday, March 10, 2015 at 9:13 AM
> To: Yi Y Yang <yi.y.yang at intel.com>
> Cc: <sfc-dev at lists.opendaylight.org>, <
> groupbasedpolicy-dev at lists.opendaylight.org>
> Subject: Re: [groupbasedpolicy-dev] The required Changes on GBP side for
> SFC integration
>
> Yi,
>
> On reflection, since the integration is more "black box" for this
> iteration (lithium) it MAY mean that for flows that GBP writes we have a
> GBP action and IFF SFC supports rate limiting "inside the black box" it
> would need to be passed and your suggestion of putting rate in chain maybe
> the best solution.
>
> Sorry for not thinking about this end to end. Good call out.
>
> Brady/Thomas/ Reinaldo should we set up a status call for folks who want
> to contribute to the POC Lithium and beyond before Thursday?
> On Mar 10, 2015 9:01 AM, "Keith Burns" <alagalah at noironetworks.com> wrote:
>
>> Yi,
>>
>> I know Reinaldo and Thomas have already done a lot of work already on the
>> GBP side, but I know they would love some help.
>>
>> For GBP we are tracking this on Trello
>> https://trello.com/c/yPGqrAUV/90-sfc-integration and we give an update
>> in our team meeting each week
>> (see https://wiki.opendaylight.org/view/Group_Policy:Sub-Groups:STATUS
>> for meeting minutes).
>>
>> There's actually quite a bit to getting even the basic "Chain:Foo" action
>> going in terms of conflict avoidance, avoiding dot-product flow explosion
>> etc that Thomas is working on.
>>
>> As for the scope for Li POC, at this stage, we have committed to doing
>> "chain:foo" i.e. asking for chain by name.
>>
>> I think if you wanted to address #2, it would be great to touch base with
>> them on how this may be achieved.
>>
>> We would need to discuss "rate" .. I think we are overloading the CHAIN
>> action. Rate limiting in GBP should be a separate action, as remember, the
>> resolution process is "ALL CLASSIFIERS MUST BE TRUE (logical AND) AND
>> ACTIONS APPLIED IN ORDER" ... rate limiting would be one of those
>> actions.... from a high level.
>>
>> Perhaps a meeting would be in order before either SFC or GBPs team
>> meeting....
>>
>> On Tue, Mar 10, 2015 at 7:28 AM, Yang, Yi Y <yi.y.yang at intel.com> wrote:
>>
>>> Hi, all
>>>
>>>
>>>
>>> As you knew, we have done some work for SFC + GBP integration, this wiki
>>> page
>>> https://wiki.opendaylight.org/view/Service_Function_Chaining:Group_Based_Policy_Integration
>>> tracked the changes. Now we need to do some work on GBP side, two necessary
>>> things are:
>>>
>>>
>>>
>>> #1. Add a new action “chain”.
>>>
>>> #2. Enhance GBP policy semantics to support SFC policy, SFC policy looks
>>> like “ID: DPI->FW->LB, rate”, ID is an identifier for a specific flow, rate
>>> is used to limit bandwidth.
>>>
>>>
>>>
>>> I’m not sure anybody is working on them. I know Thomas Bachman did SFC
>>> Manager as a start point, Reinaldo Penno added SFC API calls. I believe we
>>> need to do much more on GBP side. I look forward to seeing ideas from GBP
>>> experts here, I can start doing them if nobody is doing them, but obviously
>>> GBP experts’ input is very important, I’m a newbie for GBP.
>>>
>>> _______________________________________________
>>> groupbasedpolicy-dev mailing list
>>> groupbasedpolicy-dev at lists.opendaylight.org
>>> https://lists.opendaylight.org/mailman/listinfo/groupbasedpolicy-dev
>>>
>>>
>> _______________________________________________ groupbasedpolicy-dev
> mailing list groupbasedpolicy-dev at lists.opendaylight.org
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>
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