> Mark Tinka > Sent: Wednesday, June 10, 2020 6:19 PM > > Hi all. > > Just want to sample the room and find out if anyone here - especially those > running an LDP-based BGPv4-free core (or something close to it) - would be > interested in LDPv6, in order to achieve the same for BGPv6? > > A discussion I've been having with Cisco on the matter is that they do not > "see any demand" for LDPv6, and thus, won't develop it (on IOS XE). > Meanwhile, it is actively developed, supported and maintained on IOS XR > since 5.3.0, with new features being added to it as currently as 7.1.1. > > Needless to say, a bunch of other vendors have been supporting it for a > while now - Juniper, Nokia/ALU, Huawei, even HP. > > IOS XR supporting LDPv6 notwithstanding, Cisco's argument is that "the > world" is heavily focused on deploying SRv6 (Segment Routing). While I know > of one or two questionable deployments, I'm not entirely sure much of the > world is clamouring to deploy SR, based on all the polls we've done at various > NOG meetings and within the general list-based operator community > > So I just wanted to hear from this operator community on whether you > would be interested in having LDPv6 support to go alongside your LDPv4 > deployments, especially if you run native dual-stack backbones. Or if your > focus is totally on SRv6. Or if you don't care either way :-). Thanks. > Hey Mark, My stance is that should I go with anything "new" for label distribution the MPLS SR/SPRING is getting to a point where it might be mature enough. Also "BGP free core" means internet won't talk to your core -i.e. free to use private addressing -so no need for v6 at all in the "underlay" (as hipsters call it these days). Alternatively using public "infrastructure subnet" (i.e. not advertised to the Internet) for a "BGP free core", the aim is to make money of the core -what additional revenue stream am I getting by enabling v6 in the underlay/management plane that would offset the pain of dealing with the increased bug surface?
And with regards to the XE/XR discrepancies, I mentioned my prophecy a number of times, I think XE future in SP products portfolio is next to none. adam