Re: [Lsr] New Version Notification for draft-wang-lsr-isis-mfi-00.txt

Aijun Wang <wangaj3@chinatelecom.cn> Fri, 26 February 2021 11:44 UTC

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Date: Fri, 26 Feb 2021 19:44:14 +0800
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Cc: wangyali <wangyali11@huawei.com>, Huzhibo <huzhibo@huawei.com>, lsr@ietf.org, Tony Li <tony.li@tony.li>, Tianran Zhou <zhoutianran@huawei.com>
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To: Robert Raszuk <robert@raszuk.net>
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Subject: Re: [Lsr] New Version Notification for draft-wang-lsr-isis-mfi-00.txt
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Hi, Robert:

Separate into different protocol instances can accomplish the similar task, but it has some deployment overhead.
MFIs within one instance can avoid such cumbersome work, and doesn’t affect the basic routing calculation process.

Aijun Wang
China Telecom

> On Feb 26, 2021, at 19:00, Robert Raszuk <robert@raszuk.net> wrote:
> 
> 
> Hi Yali,
>  
>> If this was precise, then the existing multi-instance mechanism would be sufficient.
>> [Yali]: MFI is a different solution we recommend to solve this same and valuable issue.
> 
> Well the way I understand this proposal MFI is much weaker solution in terms of required separation. 
> 
> In contrast RFC8202 allows to separate ISIS instances at the process level, but here MFIs as defined must be handled by the same ISIS process 
> 
>    This document defines an extension to
>    IS-IS to allow one standard instance of 
>    the protocol to support multiple update 
>    process operations.
> 
> Thx,
> R.
> 
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