Hello Guangpeng I tried and failed so far to convince you that NSA is not by nature an IP address as we are used to. In my book it sits at L2 or L2.5 (with BIER and MPLS).
Consider this: - if it was an IID how many devices max could there be in a subnet ? This is very limited not at all the traditional order of IPv6. Also it seems to depend on the shape of the network. IP should not be impacted by L2 considerations. - NSA expresses a source route path not a destination. In that it is akin to an MPLS stack. - what if I swap the device at the end of the path? Traditional IP expects that a device can retain its address even if it is plugged on a different switch port. - what if there are multiple paths to the same device (again the point on redundancy)? So if you told me that you are shooting for IP in IP and that NSA is for the destination in the outer header I’d be rather easy to convince. That would become another variation of an SRv6 compression technique. I’d then suggest you present it at spring. If you told me it is a L2 or L2.5 mesh under technique I’d also listen carefully. The debate would become whether 6lo is home for the work. But sorry I cannot see that NSA matches an IP address. That would fuse the devices and the network together. Regards, Pascal > Le 24 août 2022 à 06:36, Liguangpeng (Roc, Network Technology Laboratory) > <liguangpeng=40huawei....@dmarc.ietf.org> a écrit : > > Hi Michael, > > That's great. Considering NSA lives with IPv6 space, there is very low > probability for the new device cannot get an address. I think we are aligned > with each other on supporting IPv6 in the first place. > > Cheers, > Guangpeng > >> -----Original Message----- >> From: Michael Richardson <mcr+i...@sandelman.ca> >> Sent: Wednesday, August 24, 2022 12:00 AM >> To: Liguangpeng (Roc, Network Technology Laboratory) >> <liguangp...@huawei.com> >> Cc: 6lo <6lo@ietf.org> >> Subject: Re: [6lo] Call for WG adoption of >> draft-li-6lo-native-short-address-03 >> >> >> "Liguangpeng (Roc, Network Technology Laboratory)" wrote: >>>>> No, as long as there is enough address for this new device. >>>> >>>> And if there isn't? >> >>> What happens if you want add the 256th device to a subnet with /24 >> IPv4 >>> address block? >> >> I was a fool to have no used IPv6 in the first place. >> >> -- >> Michael Richardson <mcr+i...@sandelman.ca> . o O ( IPv6 IøT consulting ) >> Sandelman Software Works Inc, Ottawa and Worldwide >> >> >> > > _______________________________________________ > 6lo mailing list > 6lo@ietf.org > https://www.ietf.org/mailman/listinfo/6lo _______________________________________________ 6lo mailing list 6lo@ietf.org https://www.ietf.org/mailman/listinfo/6lo
