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

Keith Burns alagalah at noironetworks.com
Tue Mar 10 16:01:05 UTC 2015


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

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
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