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charset="Windows-1252" Content-Transfer-Encoding: quoted-printable Thanks Linda. These metrics can be common to a variety of use cases. That is, the same co= mmon metrics can be used to support the CATS use cases (exposure to the ing= ress point) or (as suggested by this draft) to support service providers an= d applications to make service deployment and selection decisions. The two = efforts (network and application layer) can complement each other to achiev= e the performance requirements. As for metrics, it depends on the application, but certainly on the compute= side, CPU, GPU, NPU, memory, storage are all important to make proper plac= ement and selection decisions. A good part is that, in general, for a given= application (e.g., AI inference), the requirements to run it are generally= well-known at deployment/selection time. Thanks, Jordi ________________________________ From: Linda Dunbar Sent: Wednesday, November 1, 2023 18:15 To: Jordi Ros Giralt ; cats@ietf.org = ; alto@ietf.org Subject: RE: New draft on joint exposure of network and compute information WARNING: This email originated from outside of Qualcomm. Please be wary of = any links or attachments, and do not enable macros. Jordi, In addition, CATS WG is discussing many more metrics that can impact the se= rvice performance. Really appreciate if you can elaborate more on the new metrics that impact = the deployment and path section. It will be very useful. Thanks, Linda From: Linda Dunbar Sent: Wednesday, November 1, 2023 12:11 PM To: Jordi Ros Giralt ; cats@ietf.org; alto@ietf.org Cc: idr@ietf.org Subject: RE: New draft on joint exposure of network and compute information Jordi, Your draft describes two aspects of the service performance impacted by the= Computing: Service Deployment and Service (Path) Selection. Those two sho= uld be separated, as the Service Deployment belongs to the OpsArea, and the= Service selection (including Network Path & DCs that host the services) be= longs to the Routing area. https://datatracker.ietf.org/doc/draft-ietf-idr-5g-edge-service-metadata/ h= as proposed a new Metadata Path Attribute and some Sub-TLVs for egress rou= ters to advertise the Metadata about the attached edge services (ES). The= Edge Service Metadata can be used by the ingress routers in the 5G Local D= ata Network to make path selections not only based on the routing cost but = also the running environment of the edge services. The goal is to improve = latency and performance for 5G edge services. Can this Metadata Path Attribute address the problem stated in your draft? = I CC=92ed the IDR WG, so your comments on the Path Selection can be visibl= e to them. Thanks, Linda From: Cats > On Behalf = Of Jordi Ros Giralt Sent: Tuesday, October 24, 2023 6:47 AM To: cats@ietf.org; alto@ietf.org Subject: [Cats] New draft on joint exposure of network and compute informat= ion Dear CATS and ALTO WG mailing list members, We submitted a new draft on joint exposure of network and compute informati= on for service placement and selection: https://datatracker.ietf.org/doc/dr= aft-rcr-opsawg-operational-compute-metrics/ Joint Exposure of Network and Compute Information for Infrastructure-Aware = Service DeploymentJoint Exposure of Network and Compute Information for Inf= rastructure-Aware Service Deployment This draft focuses on the problem of exposing both network and compute info= rmation to the service provider/application to support service placement an= d selection decisions. ALTO provides an interface for network information e= xposure to the service provider/application; thus, an approach is to levera= ge and extend it with compute metrics. CATS also needs to develop compute m= etrics to support traffic steering decisions. The common ground is in these= compute metrics, which could be reused across the various use cases (e.g.,= consumed by the network as in CATS or consumed by the application as in AL= TO). This draft also aims at providing a framework for continuing the discussion= initiated during IETF 117 regarding the presentation "Compute-aware metric= s: CATS working with ALTO": https://datatracker.ietf.org/doc/slides-117-alt= o-compute-aware-metrics-cats-working-with-alto/ We would like to seek feedback from both working groups on developing compu= te metrics that can be reused for different use cases, to avoid duplicated = work and increase the effectiveness of future standards. Thanks, Jordi --_000_SN6PR02MB5375B843A02633C86130CD55F6A6ASN6PR02MB5375namp_ Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable
Thanks Linda.

These metrics can be common to a variety of use cases. That is, the same co= mmon metrics can be used to support the CATS use cases (exposure to the ing= ress point) or (as suggested by this draft) to support service providers an= d applications to make service deployment and selection decisions. The two efforts (network and application layer) c= an complement each other to achieve the performance requirements. 

As for metrics, it depends on the application, but certainly on the compute= side, CPU, GPU, NPU, memory, storage are all important to make proper plac= ement and selection decisions. A good part is that, in general, for a given= application (e.g., AI inference), the requirements to run it are generally well-known at deployment/selectio= n time.

Thanks,
Jordi
From: Linda Dunbar <lind= a.dunbar@futurewei.com>
Sent: Wednesday, November 1, 2023 18:15
To: Jordi Ros Giralt <jros@qti.qualcomm.com>; cats@ietf.org &l= t;cats@ietf.org>; alto@ietf.org <alto@ietf.org>
Subject: RE: New draft on joint exposure of network and compute info= rmation
 

WARNING: This email originated from outside of Qualcomm. Please be wary of any li= nks or attachments, and do not enable macros.

Jordi,

 

In addition, CATS WG is discussing many more metri= cs that can impact the service performance.

 

Really appreciate if you can elaborate more on the= new metrics that impact the deployment and path section. It will be very u= seful.

 

Thanks, Linda

 

 

 

From: Linda Dunbar
Sent: Wednesday, November 1, 2023 12:11 PM
To: Jordi Ros Giralt <jros@qti.qualcomm.com>; cats@ietf.org; a= lto@ietf.org
Cc: idr@ietf.org
Subject: RE: New draft on joint exposure of network and compute info= rmation

 

Jordi,

 

Your draft describes two aspects of the service pe= rformance impacted by the Computing: Service Deployment and  Service (= Path) Selection. Those two should be separated, as the Service Deployment b= elongs to the OpsArea, and the Service selection (including Network Path & DCs that host the services) belong= s to the Routing area.

 

https://datatracker.ietf.org/doc/draft-= ietf-idr-5g-edge-service-metadata/ has proposed a new Metadata Path Att= ribute and some Sub-TLVs  for egress routers to advertise the Metadata about the attached edge  services (= ES).  The Edge Service Metadata can be used by the ingress routers in = the 5G Local Data Network to make path selections not only based on th= e routing cost but also the running environment of the edge services. = The goal is to improve latency and performance for 5G  edge services.=

 

 

Can this Metadata Path Attribute address the probl= em stated in your draft?  I CC=92ed the IDR WG, so your comments on th= e Path Selection can be visible to them.

 

Thanks, Linda

 

 

From: Cats <cats-bounces@ietf.org> On Behalf Of Jordi Ros Giralt
Sent: Tuesday, October 24, 2023 6:47 AM
To: cats@ietf.org; alto@ietf.org
Subject: [Cats] New draft on joint exposure of network and compute i= nformation

 

Dear CATS and ALTO WG mailing list me= mbers,

 

We submitted a new draft on joint expo= sure of network and compute information for service placement and selection= : https://datatracker.ietf.org/doc/draft-rcr-opsawg-operational-compute-metri= cs/

 

 

Joint Exposure of Network and Comp= ute Information for Infrastructure-Aware Service DeploymentJoint Exposure o= f Network and Compute Information for Infrastructure-Aware Service Deployment

This draft focuses on the problem of = exposing both network and compute information to the service provider/appli= cation to support service placement and selection decisions. ALTO provides an interface for network information exposure to = the service provider/application; thus, an approach is to leverage and exte= nd it with compute metrics. CATS also needs to develop compute metrics to s= upport traffic steering decisions. The common ground is in these compute metrics, which could be reused acros= s the various use cases (e.g., consumed by the network as in CATS or consum= ed by the application as in ALTO).

 

This draft also aims at providing a f= ramework for continuing the discussion initiated during IETF 117 regarding = the presentation "Compute-aware metrics: CATS working with ALTO": https://datatracker.ietf.org/doc/slides-117-alto-compute-aware-metrics-cats= -working-with-alto/  

 

We would like to seek feedback from b= oth working groups on developing compute metrics that can be reused for dif= ferent use cases, to avoid duplicated work and increase the effectiveness of future standards.

 

Thanks,

Jordi 

 

 

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