[Cats] 答复: Next steps with CATS framework

[Cheng Li <[e-mail]>]

Well, after reading the thread, I share a simple summary from my understanding.

At least we have two scenarios,.
* Forwarding the packet to a site, and then leave the rest forwarding to the site. In this case, we need a Site-ID
* Forwarding the packet to a instance inside a site directly. In this case, we need an Instance-ID.

If we cannot find out an general term to cover these two IDs, it would be OK to me to keep define IDs in the draft.
If we have to find a general term, LI-ID(Location/Instance ID) or SI-ID(Site/Instance ID) work for me.

Thanks,
Cheng


  

-----邮件原件-----
发件人: Cats [mailto:[e-mail]] 代表 Linda Dunbar
发送时间: 2023年4月19日 23:31
收件人: [e-mail]; Dirk Trossen <[e-mail]>; Luigi Iannone <[e-mail]>
抄送: [e-mail]; [e-mail]; [e-mail]
主题: Re: [Cats] Next steps with CATS framework

Med,

What is " service-specific dispatchers"?

Linda

-----Original Message-----
From: [e-mail] <[e-mail]>
Sent: Wednesday, April 19, 2023 1:52 AM
To: Linda Dunbar <[e-mail]>; Dirk Trossen <[e-mail]>; Luigi Iannone <[e-mail]>
Cc: [e-mail]; [e-mail]; [e-mail]
Subject: RE: [Cats] Next steps with CATS framework

Hi Linda,

As we are in early stages of the arch discussion, we need to be careful about the terms we are using as this may imply some arch assumptions. For example, "instance id" may be interpreted as if it always conveys the identity of the exact instance that will provide the service and won't be used/useful for the recursive mode where another dispatcher level will be on path (and which will be responsible for determining the exact instance). For example, many service-specific dispatchers can be hosted in the same node, supplying an id that will identify the dispatcher for a given request would avoid requiring an extra classification operation in the service site edge.

Till that arch discussion happens, I prefer we have a more neutral term that covers both the direct and recursive mode.

Please note that the current definition of the term we are discussing is as follows:

   CATS Binding ID (CB-ID):  An identifier of a single service instance
      or location of a given service instance (CS-ID).  See Section 3.2.

Cheers,
Med

> -----Message d'origine-----
> De : Cats <[e-mail]> De la part de Linda Dunbar Envoyé :
> mardi 18 avril 2023 16:58 À : BOUCADAIR Mohamed INNOV/NET 
> <[e-mail]>; Dirk Trossen 
> <[e-mail]>; Luigi Iannone <[e-mail]> Cc :
> [e-mail]; [e-mail];
> [e-mail]
> Objet : Re: [Cats] Next steps with CATS framework
>
> Med,
>
> Then Instance ID [InstID]? Everyone in the industry understands it 
> well.
>
> I think adding the  "Location ID" [ILID] to the name just adds more 
> complication & confusion as it needs so much more explanation.
>
> we might incorporate the ILA [Identify Location Address] (https://eur/ 
> 03.safelinks.protection.outlook.com%2F%3Furl%3Dhttps%253A%252F%25252&d
> ata=05%7C01%7Clinda.dunbar%40futurewei.com%7C9386174c5b0644824bfd08db4
> 0a290ff%7C0fee8ff2a3b240189c753a1d5591fedc%7C1%7C0%7C63817483920682652
> 4%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6
> Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=ZTJSpsV9aFV1BC6P%2Byqw%2F
> 6UDyyXRol6Xw2UeR%2BJyhkI%3D&reserved=0
> Fdatatracker.ietf.org%2Fdoc%2Fdraft-herbert-ila-
> mobile%2F&data=05%7C01%7Cmohamed.boucadair%40orange.com%7C83ea0826
> a8f649194d4508db401d4ab5%7C90c7a20af34b40bfbc48b9253b6f5d20%7C0%7C
> 0%7C638174266779200632%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDA
> iLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sd
> ata=87Q%2BiZ1qk4%2FIWeZptST6ixr2zDN1aWjBnyGKOrpR8lI%3D&reserved=0
> ), which was proposed by Facebook a few years ago, into the structure 
> of the Instance ID.
>
> Linda
>
> -----Original Message-----
> From: [e-mail] <[e-mail]>
> Sent: Tuesday, April 18, 2023 9:37 AM
> To: Linda Dunbar <[e-mail]>; Dirk Trossen 
> <[e-mail]>; Luigi Iannone <[e-mail]>
> Cc: [e-mail]; [e-mail];
> [e-mail]
> Subject: RE: [Cats] Next steps with CATS framework
>
> Hi Linda,
>
> We do already have a service ID. What we are discussing is the actual 
> instance that will provide the requested service. This can be a 
> specific service instance or a site that hosts the instance.
>
> Cheers,
> Med
>
> > -----Message d'origine-----
> > De : Cats <[e-mail]> De la part de Linda Dunbar
> Envoyé :
> > mardi 18 avril 2023 16:31 À : BOUCADAIR Mohamed INNOV/NET 
> > <[e-mail]>; Dirk Trossen 
> > <[e-mail]>; Luigi Iannone <[e-mail]> Cc :
> > [e-mail]; [e-mail];
> > [e-mail]
> > Objet : Re: [Cats] Next steps with CATS framework
> >
> > > How about EID - endpoint ID
> >
> > I'm afraid this is too generic and will be interpreted as if the 
> > entity having the EID will terminate the connection and process
> the
> > request, while this is not always the case.
> >
> > [Linda] Why not call it "Service ID"?
> > Linda
> >
> > -----Original Message-----
> > From: Cats <[e-mail]> On Behalf Of 
> > [e-mail]
> > Sent: Tuesday, April 18, 2023 9:21 AM
> > To: Dirk Trossen <[e-mail]>; Luigi Iannone 
> > <[e-mail]>
> > Cc: [e-mail]; [e-mail];
> > [e-mail]
> > Subject: Re: [Cats] Next steps with CATS framework
> >
> > Hi Dirk, Luigi,
> >
> > > May it's a nit, but what about
> > > "Instance/Location ID - ILID"
> >
> > Would be OK as well.
> >
> > > How about EID - endpoint ID
> >
> > I'm afraid this is too generic and will be interpreted as if the 
> > entity having the EID will terminate the connection and process
> the
> > request, while this is not always the case. Thanks.
> >
> > Cheers,
> > Med
> >
> > > -----Message d'origine-----
> > > De : Dirk Trossen <[e-mail]> Envoyé : mardi 18
> > avril
> > > 2023 16:01 À : Luigi Iannone <[e-mail]>; BOUCADAIR
> Mohamed
> > > INNOV/NET <[e-mail]> Cc :
> > [e-mail];
> > > [e-mail];
> > > [e-mail]
> > > Objet : RE: [Cats] Next steps with CATS framework
> > >
> > > How about EID - endpoint ID - given that it is about an
> endpoint
> > > identifier rather than a service identifier? Whether the
> > endpoint is a
> > > site (then further dispatching an incoming request) or an
> > instance
> > > itself is subject to deployment.
> > >
> > > Best,
> > >
> > > Dirk
> > >
> > > -----Original Message-----
> > > From: Cats <[e-mail]> On Behalf Of Luigi Iannone
> > > Sent: 18 April 2023 15:49
> > > To: <[e-mail]>
> > <[e-mail]>
> > > Cc: [e-mail]; [e-mail];
> > > [e-mail]
> > > Subject: Re: [Cats] Next steps with CATS framework
> > >
> > >
> > >
> > > > On 18 Apr 2023, at 10:32, [e-mail]
> wrote:
> > > >> -  Possibly rename "Binding ID" to "Instance ID" (Could
> > simply make
> > > >> this change unless someone has an issue with it)
> > > >
> > > > [Med] The proposed change does not cover well the case where
> > the
> > > selection output is a site, not the instance itself. "Instance 
> > > Location ID" would be OK.
> > >
> > > May it's a nit, but what about
> > > "Instance/Location ID - ILID"
> > > Or
> > > "Location/Instance ID - LIID"
> > >  to better capture that it can be either a service instance or
> > its
> > > location..
> > >
> > > Ciao
> > >
> > > L.
> > >
> > > --
> > > Cats mailing list
> > > [e-mail]
> > > https://eur0/
> > >
> >
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> >
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> 3.safelinks.protection.outlook.com%2F%3Furl%3Dhttps%253A%252F%252F
> &dat
> >
> a=05%7C01%7Clinda.dunbar%40futurewei.com%7C0d2d0ca72bad417b14d808d
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> a63fe%7C0fee8ff2a3b240189c753a1d5591fedc%7C1%7C0%7C638174254330739
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