Re: [Anima] Self-Managed Networks

[Brian E Carpenter <[e-mail]>]

Mehmet,

ANIMA communication is over a secure L3*, which is exactly the reason that the ACP
is defined as it is. But of course the targets of a use case could be at any level of the
stack.

*except for discovery messages, which cannot always be secure.

Also of course we cannot claim that GRASP is the solution to all problems.
For example, I recently reviewed draft-ietf-pwe3-iccp-stp. There's no
reason we would use GRASP to solve the fault-management problem that's
already solved by ICCP and the 802 spanning tree.

Regards
   Brian Carpenter

On 16/10/2015 17:17, Toy, Mehmet wrote:
> Brian,
> I would have no objection using GRASP (or extended GRASP) for FM communications as long as we can support the network types that we want. I understand that ANIMA is considering only L3 networks.
> I wish we can generalize our approach so that we can cover both L2 and L3.  Despite of my Ethernet example, my approach is applicable to L2 and L3 networks.
> 
> Regards,,
> Mehmet
> 
> 
> -----Original Message-----
> From: Brian E Carpenter [mailto:[e-mail]] 
> Sent: Thursday, October 15, 2015 6:58 PM
> To: Toy, Mehmet; Toerless Eckert
> Cc: [e-mail]; [e-mail]; Romascanu, Dan (Dan) ([e-mail]); [e-mail]
> Subject: Re: Self-Managed Networks
> 
> Just commenting on one key point:
> 
>> MT: Ethernet frame is just an example. We can collectively decide to have something else. The key point here is to have one message format for all FM related communications.
> 
> Anima has decided to run over a secure layer 3 by default (i.e. the ACP). And our plan is to have a globally applicable signaling protocol (i.e. GRASP). Of course, if GRASP isn't suitable for a given use case, we would have two alternatives 1. Extend GRASP, which is relatively easy thanks to CBOR; 2. Use something else, which has its own complications.
> 
> GRASP can carry any format, YANG if you like, but whether you can model any particular use case is of course TBD.
> Please review https://tools.ietf.org/html/draft-ietf-anima-grasp
> 
> Regards
>    Brian Carpenter
> 
>