[Idnet] 答复: IDN dedicated session call for case

Hi Albert and yanshen,
      Good use case. Another supporter is come. ^_^
      Based on QoS metric, OoE can be easily inferred/predicted. However, I think the process in implicit, you don’t know which metric or what value of metric is useful to improve QoE. And also you have no idea about the relationship between QoS and QoE.
      In some case like network planning, if there exists some QoE demand and some QoS metrics need to be deployed onto network devices, the mapping relation of QoE and QoS (explicit mapping) is definitely need to guide how to select the metric and the corresponding value.

Kind regards
Xiaojian

发件人: IDNET [mailto:idnet-bounces@ietf.org] 代表 yanshen
发送时间: 2017年8月8日 18:02
收件人: Albert Cabellos <albert.cabellos@gmail.com>
抄送: idnet@ietf.org; Özgü Alay <ozgu@simula.no>
主题: Re: [Idnet] IDN dedicated session call for case

Dear Albert,

At least two supporters you have : )

I think that the QoS and QoE is just similar with my opinion mentioned before that is the data can be divided into subjective and objective.  This will be related with the data format and the way of obtaining. And your case build up a bridge between the subjective and objective.

Yansen

From: Özgü Alay [mailto:ozgu@simula.no]
Sent: Tuesday, August 08, 2017 2:02 PM
To: Albert Cabellos <albert.cabellos@gmail.com<mailto:albert.cabellos@gmail.com>>
Cc: yanshen <yanshen@huawei.com<mailto:yanshen@huawei.com>>; idnet@ietf.org<mailto:idnet@ietf.org>
Subject: Re: [Idnet] IDN dedicated session call for case

Dear Albert,
We are interested in this use case and will support the activities in this area.
Best Regards,
Özgü

On 8 August 2017 at 06:52, Albert Cabellos <albert.cabellos@gmail.com<mailto:albert.cabellos@gmail.com>> wrote:
Hi all

Here´s another use-case:

Use case N+2: QoE
        Description: Collect low-level metrics (SNR, latency, jitter, losses, etc) and measure QoE. Then use ML to understand what is the relation between satisfactory QoE and the low-level metrics. As an example learn that when delay>N then QoE is degraded, but when M<delay<N then QoE is satisfactory for the customers (please note that QoE cannot be measured directly over your network). This is useful to understand how the network must be operated to provide satisfactory QoE.
        Process: 1. Low-level data collection and QoE measurement ; 2. Training Model (input low-level metrics, output QoE); 3. Real-time data capture and input; 4. Predict QoE; 5. Operate network to meet target QoE requirement, go to 3.
        Data Format:    Time : [Start, End, Unit, Number of Value, Sampling Period]
                                Position: [Device ID, Port ID]
                                Direction: IN / OUT
                                Low-level metric : SNR, Delay, Jitter, queue-size, etc

        Message :       Request: ask for the data
                                Reply: Data
                                Notice: For notification or others
                                Policy: Control policy

Kind regards

Albert

On Wed, Aug 2, 2017 at 7:12 PM, yanshen <yanshen@huawei.com<mailto:yanshen@huawei.com>> wrote:
Dear all,

Since we plan to organize a dedicated session in NMRG, IETF100, for applying AI into network management (NM), I’d try to list some Use Cases and propose a roadmap and ToC before Nov.

These might be rough. You are welcome to refine them and propose your focused use cases or ideas.

Use case 1: Traffic Prediction
        Description: Collect the history traffic data and external data which may influence the traffic. Predict the traffic in short/long/specific term. Avoid the congestion or risk in previously.
        Process: 1. Data collection (e.g. traffic sample of physical/logical port ); 2. Training Model; 3. Real-time data capture and input; 4. Predication output; 5. Fix error and go back to 3.
        Data Format:    Time : [Start, End, Unit, Number of Value, Sampling Period]
                                Position: [Device ID, Port ID]
                                Direction: IN / OUT
                                Route : [R1, R2, ..., RN]  (might be useful for some scenarios)
                                Service : [Service ID, Priority, ...]  (Not clear how to use it but seems useful)
                                Traffic: [T0, T1, T2, ..., TN]
        Message :       Request: ask for the data
                                Reply: Data
                                Notice: For notification or others
                                Policy: Control policy

Use case 2: QoS Management
        Description: Use multiple paths to distribute the traffic flows. Adjust the percentages. Avoid congestion and ensure QoS.
        Process: 1. Data capture (e.g. traffic sample of physical/logical port ); 2. Training Model; 3. Real-time data capture and input; 4. Output percentages; 5. Fix error and go back to 3.
        Data Format:    Time : [Timestamp, Value type (Delay/Packet Loss/...), Unit, Number of Value, Sampling Period]
                                Position: [Link ID, Device ID]
                                Value: [V0, V1, V2, ..., VN]
        Message :       Request: ask for the data
                                Reply: Data
                                Notice: For notification or others
                                Policy: Control policy

Use case N: Waiting for your Ideas

Also I suggest a roadmap before Nov if possible.

### Roadmap ###
Aug. : Collecting the use cases (related with NM). Rough thoughts and requirements
Sep. : Refining the cases and abstract the common elements
Oct. : Deeply analysis. Especially on Data Format, control flow, or other key points
Nov.: F2F discussions on IETF100
### Roadmap End ###

A rough ToC is listed in following. We may take it as a scope before Nov. Hope that the content could become the draft of draft.

###Table of Content###
1. Gap and Requirement Analysis
        1.1 Network Management requirement
        1.2 TBD
2. Use Cases
        2.1 Traffic Prediction
        2.2 QoS Management
        3.3 TBD
3. Data Focus
        3.1 Data attribute
        3.2 Data format
        3.3 TBD
4. Aims
        4.1 Benchmarking Framework
        4.2 TBD
###ToC End###

Yansen

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