Hi, Chongfeng:

 

The standard BGP protocol can certainly unlock the customer to one specific 
SD-WAN service provider. 

But given the scenario in this document depends on the SD-WAN controller, it is 
unrealistic that the different sites of one customer connect to different 
SD-WAN controllers.  

Normally, these sites of the customer will connect one SD-WAN controller, then, 
the advantage of BGP protocol, when compared with the prosperity protocol, is 
not very convinced.

 

Best Regards

 

Aijun Wang

China Telecom

 

From: Chongfeng Xie [mailto:[email protected]] 
Sent: Monday, September 8, 2025 1:35 PM
To: Aijun Wang <[email protected]>; Matthew Bocci (Nokia) 
<[email protected]>; bess <[email protected]>
Cc: [email protected]
Subject: Re: [bess] Re: WG Last Call for draft-ietf-bess-bgp-sdwan-usage

 

 

 

Hi Aijun,

For point 4 you raised, I think current proprietary protocol-based 
implementations have limited deployment scale, in addition, for users are bound 
to a specific service provider, it constrains users' choices. Therefore, It is 
necessary to propose new alternative solutions.

 

Best regards

Chongfeng

 

 

From:  <mailto:[email protected]> Aijun Wang

Date: 2025-09-08 12:09

To:  <mailto:[email protected]> 'Matthew Bocci 
\(Nokia\)';  <mailto:[email protected]> 'BESS'

CC:  <mailto:[email protected]> 
draft-ietf-bess-bgp-sdwan-usage

Subject: [bess] Re: WG Last Call for draft-ietf-bess-bgp-sdwan-usage

Hi, All:

 

I have reviewed roughly this document, and have the following comments before 
its publication:

 

1)    The document focus on the “BGP Usage for SD-WAN Overlay Networks”, then, 
can we remove the  section 6 of “SD-WAN Forwarding Model” which focuses mainly 
on the forwarding plane, not BGP usage?

2)    Should the document introduce first the scenario, and requirements, and 
then the BGP controlled SD-WAN? That is to say, put the current section 3.1 
after the section 3.2/3.3/3.4?

3)    Should the authors review again the current “requirements” with the 
section 5, and evaluate again whether the section 5 meets the current 
“requirements”? for example, can the “Zero Touch Provisioning” is accomplished 
via the BGP protocol? If not, I suggest to remove such requirements.

4)    As I known, current SD-WAN deployment is mainly implemented via the 
vendor’s proprietary protocol, because the complex policy requirements. Can the 
authors explain more the benefits that depends on BGP, instead of the 
proprietary protocol to accomplish the similar aim? And, if we need still the 
controller, why don’t use the proprietary protocol, instead of extending the 
BGP protocol?

 

Answering the above questions, and make the above adjustment, can convince the 
reader better and make the document’s motivation more clearly.

 

 

Best Regards

 

Aijun Wang

China Telecom

From: [email protected] <mailto:[email protected]>  
[mailto:[email protected]] On Behalf Of Matthew Bocci (Nokia)
Sent: Wednesday, August 27, 2025 7:05 PM
To: BESS <[email protected] <mailto:[email protected]> >
Cc: [email protected] 
<mailto:[email protected]> 
Subject: [bess] WG Last Call for draft-ietf-bess-bgp-sdwan-usage

 

This email begins a working group last call for  
<https://datatracker.ietf.org/doc/draft-ietf-bess-bgp-sdwan-usage/> 
draft-ietf-bess-bgp-sdwan-usage-26 - BGP Usage for SD-WAN Overlay Networks

 

Please review the draft and send any comments to the BESS WG list, including 
whether (or not) you support publishing this draft as an informational RFC. 

 

A bit of background: the draft was previously sent to the IESG but was returned 
to the working group after extensive review/discussion and due to some concerns 
that it was not in charter at the time. The BESS WG charter has recently been 
clarified.

 

This WG last call ends on Wednesday 10th September.

 

Matthew

 

 

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