Re: [bess] [Softwires] [Idr] Regarding the Next Hop Network Address coding for IPv4 VPN over IPv6 Core in RFC5549

2019-06-27 Thread Rajiv Asati (rajiva)
I agree and sometimes flexibility becomes an unwanted necessity (as is the case here with option (a)). IMO, option (b) length based check for NH should be preferred, since it works for all AFI/SAFIs with an assumption that NH could be one IPv4 or IPv6 prefix. Very reasonable option. Option (a

Re: [bess] [Softwires] [Idr] Regarding the Next Hop Network Address coding for IPv4 VPN over IPv6 Core in RFC5549

2019-06-27 Thread Zhuangshunwan
Hi all, Can the WG reach a conclusion on how to treat that erratum related to RFC5549: https://www.rfc-editor.org/errata/eid5253 Thanks, Shunwan -Original Message- From: Softwires [mailto:softwires-boun...@ietf.org] On Behalf Of Vigoureux, Martin (Nokia - FR/Paris-Saclay) Sent: Thursda

Re: [bess] [Softwires] [Idr] Regarding the Next Hop Network Address coding for IPv4 VPN over IPv6 Core in RFC5549

2019-06-27 Thread Robert Raszuk
My vote - Reject. Justification: Irrespective if we would reject or accept the erratum implementations must be able to handle 10 years old RFC so must be able to properly recognize the next hop to be either of length 16 or 24. (I am putting aside the 32/48 invention). So that means that next hop

Re: [bess] [Softwires] [Idr] Regarding the Next Hop Network Address coding for IPv4 VPN over IPv6 Core in RFC5549

2019-06-27 Thread ian.farrer
Hi, (co-chair hat off) I also vote to reject this erratum on the following grounds: The erratum text was raised as: Section 6.2 says: Length of Next Hop Network Address = 16 (or 32) It should say: Length of Next Hop Network Address = 24 (or 48) Notes: The lengths should include the RD length al

Re: [bess] [Softwires] [Idr] Regarding the Next Hop Network Address coding for IPv4 VPN over IPv6 Core in RFC5549

2019-06-28 Thread stephane.litkowski
...@ietf.org Subject: Re: [bess] [Softwires] [Idr] Regarding the Next Hop Network Address coding for IPv4 VPN over IPv6 Core in RFC5549 I agree and sometimes flexibility becomes an unwanted necessity (as is the case here with option (a)). IMO, option (b) length based check for NH should be preferred