Re: [spring] ICMP and Compressed SIDs

2023-09-07 Thread Francois Clad
Hi Joel, The receiver in this case is an SR segment endpoint node processing an IPv6 packet that matches a FIB entry locally instantiated as a SID of this document. Therefore, the expected behavior of the receiver is that described in Sec. 4. Thanks, Francois On 6 Sep 2023 at 16:38:30, Joel Hal

Re: [spring] Volunteers for the SPRING SRv6 Compression draft

2023-09-07 Thread Antoine FRESSANCOURT
Hello, I am interested in doing the review for draft-ietf-spring-srv6-srh-compression as well, and I qualify according to the criteria you get. Best regards, Antoine -Original Message- From: spring On Behalf Of Joel Halpern Sent: mercredi 6 septembre 2023 19:12 To: SPRING WG List Sub

Re: [spring] ICMP and Compressed SIDs

2023-09-07 Thread Joel Halpern
Can you explain then what the text is section 10.1 is talking about?  It seems like it is mandating certain bits being 0 for it to be considered a match?  (I will also have to find out more about why the tests showed certain routers dropping such packets.) Yours, Joel On 9/7/2023 4:09 AM, Fr

Re: [spring] ICMP and Compressed SIDs

2023-09-07 Thread Francois Clad
Hi Joel, Sec. 10.1 specifies how the SR source node should send the ICMP packet so that it is correctly processed by the receiver. I.e., if the source sends an ICMP packet to a SID with a non-zero argument, then they may not get a reply back, as you have observed in your tests. Thanks, Francois

Re: [spring] ICMP and Compressed SIDs

2023-09-07 Thread Joel Halpern
Why is it unspecified what the behavior is if the arg bits are non-zero.  Leaving things unspecified (and getting different behaviors from different implementations) makes things more complex if we need to build on this behavior. Yours, Joel On 9/7/2023 10:30 AM, Francois Clad wrote: Hi Joe

Re: [spring] ICMP and Compressed SIDs

2023-09-07 Thread Francois Clad
Hi Joel, This behavior is not unspecified. It is specified in Sec. 4 of the draft (as mentioned in my first email). Given the same packet and the same router configuration, the behavior should be the same with all implementations. Thanks, Francois On 7 Sep 2023 at 16:32:06, Joel Halpern wrote: