Ok thanks

From: Eric C Rosen [mailto:[email protected]]
Sent: Wednesday, February 07, 2018 17:57
To: LITKOWSKI Stephane OBS/OINIS; 
[email protected]
Cc: [email protected]; [email protected]
Subject: Re: Shepherd's review of draft-ietf-bess-mvpn-expl-track

On 1/16/2018 11:29 AM, Eric C Rosen wrote:




"If the LIR-pF flag is set in a given PTA, the LIR flag of that PTA

   SHOULD also be set."

[SLI] Why not using a MUST ?

[Eric] If all the PEs support the LIR-pF flag, the procedures will work as 
intended even if the LIR flag is not set.  So I don't think a MUST is 
appropriate.

Thinking about this more, I now think you are right that MUST would be better.  
By saying MUST, we remove an unnecessary variation in behavior.

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