Deprecating the Use of Router Alert in LSP Ping
draft-ietf-mpls-lspping-norao-08

Yes

Paul Wouters
(Andrew Alston)

No Objection

Erik Kline
Jim Guichard
Roman Danyliw
Éric Vyncke
(John Scudder)
(Murray Kucherawy)
(Robert Wilton)
(Zaheduzzaman Sarker)

Note: This ballot was opened for revision 07 and is now closed.

Paul Wouters
Yes
Erik Kline
(was Discuss) No Objection
Comment (2024-02-19 for -07) Sent for earlier 
# Internet AD comments for draft-ietf-mpls-lspping-norao-07
CC @ekline

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## Comments

### S4.

* "entropy other than the IP destination address SHOULD be used"

  Do you want to explicitly mention the IPv6 Flow Label here (RFC 6438)?
Jim Guichard
No Objection
Roman Danyliw
No Objection
Comment (2024-02-25 for -07) Not sent 
Thank you to Loganaden Velvindron for the SECDIR review.
Éric Vyncke
(was Discuss) No Objection
Comment (2024-03-19) Sent 
Thanks to the authors and the current responsible AD for addressing my remaining blocking DISCUSS.

The previous ballot was:
https://mailarchive.ietf.org/arch/msg/mpls/GAnJFLibbjloymyjW7lILi4ip7A/
Andrew Alston Former IESG member
Yes
Yes (for -07) Unknown 

                            

                        
                    

                
            
        
            
                
            
                
            
                
            
                
            
                
                    

                        

                            John Scudder Former IESG member
                        

                        

                            
                            No Objection
                            
                        

                    

                    

                        

                            

                                No Objection 
                                
                                    (2024-02-20 for -07)
                                
                                
                                    
                                         Sent
                                    
                                
                            

                        

                        
                            

                                
Thanks for this document. I have just a few comments, below.

Your NEW text includes, “To exercise all paths in an ECMP environment, the entropy other than the IP destination address SHOULD be used.”

First, and least important, this isn’t quite grammatical. I suppose you mean something like “a source of entropy other than...”. 

Second, under what circumstances is it OK for the IP destination address to be varied as a source of entropy? (SHOULD implies there are valid cases when an implementer MAY disregard the guideline.) 

The answer to the above may well also answer my next question, which is to ask why you continue to permit the use of any IPv4-mapped IPv6 address from 127/8 as the destination address, instead of making the exclusive use of the IPv6 loopback address a MUST, which seems like the obvious thing to do.

For that matter, I’m struggling to see why any of the SHOULD in your new text can’t be MUST, other than the “SHOULD NOT” in the definition of “deprecated“ (even that one is debatable).

                            

                        
                    

                
            
                
                    

                        

                            Murray Kucherawy Former IESG member
                        

                        

                            
                            No Objection
                            
                        

                    

                    

                        

                            

                                No Objection 
                                
                                    (for -07)
                                
                                
                                    
                                         Not sent
                                    
                                
                            

                        

                        
                            

                                

                            

                        
                    

                
            
                
                    

                        

                            Robert Wilton Former IESG member
                        

                        

                            
                            No Objection
                            
                        

                    

                    

                        

                            

                                No Objection 
                                
                                    (for -07)
                                
                                
                                    
                                         Not sent
                                    
                                
                            

                        

                        
                            

                                

                            

                        
                    

                
            
                
                    

                        

                            Zaheduzzaman Sarker Former IESG member
                        

                        

                            
                            No Objection
                            
                        

                    

                    

                        

                            

                                No Objection 
                                
                                    (2024-02-28 for -07)
                                
                                
                                    
                                         Not sent
                                    
                                
                            

                        

                        
                            

                                
Supporting Eric's discuss.