[Anima] Re: I-D Action: draft-han-anima-grasp-congestion-relief-00.txt

["韩梦瑶(联通集团科技创新部)" <[e-mail]>]

Hi Brain,

    Thanks for your comments. Your comments makes sense. The specifics related to the services are achieved through newly defined objectives. We will update this in next version according the references.



[e-mail]
 
From: Brian E Carpenter
Date: 2025-10-29 11:03
To: Anima WG; draft-han-anima-grasp-congestion-relief
Subject: [Anima] Re: I-D Action: draft-han-anima-grasp-congestion-relief-00.txt
【本邮件为外部邮件，请注意核实发件人身份，并谨慎处理邮件内容中的链接及附件】
Hi,
 
This does seem like a good application for GRASP and it will be
interesting to see more details. However, I have one major comment:
 
> 4.1.1.  New GRASP Option: Congestion Monitoring
> 
>    A new Option is defined within the GRASP protocol to carry congestion
>    status information transmitted between Autonomous Service Agent (ASA)
>    nodes.  As an example, a node MAY periodically transmit messages that
>    include its local congestion metrics, such as queue length and
>    bandwidth utilization to adjacent nodes.
> 
> 4.1.2.  New GRASP Option: Bandwidth Allocation
> 
>    Leveraging the negotiation mechanism inherent to the GRASP protocol,
>    network nodes are able to negotiate the allocation of bandwidth
>    resources.  Upon the occurrence of network congestion, nodes SHALL
>    renegotiate the bandwidth allocation scheme, reduce the bandwidth
>    consumption of non-critical traffic flows, and release additional
>    resources to be allocated to critical traffic flows.
 
I believe this is not the best approach. There is no need to define
new GRASP options; that would require modifications to the entire
implementation of the GRASP protocol. The better approach is to define
two GRASP objectives. Please see [1] for the guidelines and [2] for
a complete example There is prototype code for that example at [3, 4]).
 
[1] https://www.rfc-editor.org/rfc/rfc9222.html
[2] https://www.rfc-editor.org/rfc/rfc8992.html
[3] https://github.com/becarpenter/graspy/blob/master/documentation/pfxm3.pdf
[4] https://github.com/becarpenter/graspy/blob/master/ASA-examples/pfxm3.py
Regards/Ngā mihi
    Brian Carpenter
 
On 21-Oct-25 03:22, [e-mail] wrote:
> Internet-Draft draft-han-anima-grasp-congestion-relief-00.txt is now
> available.
> 
>     Title:   Automatic Network Congestion Relief in GeneRic Autonomic Signaling Protocol (GRASP)
>     Authors: Mengyao Han
>              Jing Zhao
>              Zheng Ruan
>              Shuai Zhang
>     Name:    draft-han-anima-grasp-congestion-relief-00.txt
>     Pages:   6
>     Dates:   2025-10-20
> 
> Abstract:
> 
>     This draft defines a method for automatic congestion relief using the
>     Grasp protocol.  In operator networks, in response to network
>     failures such as fiber optic cable faults and optical module
>     malfunctions, network devices can automatically respond and achieve
>     real-time self-healing, thereby ensuring the stable operation of the
>     network.
> 
> The IETF datatracker status page for this Internet-Draft is:
> https://datatracker.ietf.org/doc/draft-han-anima-grasp-congestion-relief/
> 
> There is also an HTMLized version available at:
> https://datatracker.ietf.org/doc/html/draft-han-anima-grasp-congestion-relief-00
> 
> Internet-Drafts are also available by rsync at:
> rsync.ietf.org::internet-drafts
> 
> 
> _______________________________________________
> I-D-Announce mailing list -- [e-mail]
> To unsubscribe send an email to [e-mail]
_______________________________________________
Anima mailing list -- [e-mail]
To unsubscribe send an email to [e-mail]