Jeff,
> On Jul 10, 2022, at 5:14 PM, Jeff Tantsura <jefftant.i...@gmail.com> wrote: > > Thanks Sue! > > We don’t have to always reinvent the wheel (at least not every time 😊) > I’m aware of at least 1 implementation streaming LSDB for TE consumers (gRPC) > There are most probably some other vendor specific encodings/methods to steam > to do that Minimally, the Openconfig group has models for the LSDB and some number of vendors either have implementation for providing access to that state via netconf, or gNMI. Example model: https://github.com/openconfig/public/blob/master/release/models/ospf/openconfig-ospfv2-lsdb.yang I've largely reached the point where when someone uses the term "subscription" in terms of operational state, I'm going to think "you want this in YANG modeling via one of the access protocols for that". For general operational state access, it's not bad... just very slow and eats your CPU doing too much printf. (non-ascii versions of the model output become discussion points, but also change your ecosystem discussion). Part of the discussion not fully had is what the consumers for this state are. If you're talking operational tools, getting pushed toward YANG models starts making more sense. However, if you have routing driven purposes, either directly at consuming routers or at controllers, you want different answers. Certainly, as you're aware, Jeff, vendors and operators are happily consuming BGP-LS state do to Clever Things. For those cases, I'm not sure there's going to be a driver to get it out of BGP. > I believe – there has been some work around Kafka. It works quite nicely on collectors. Serving your ecosystem by consuming the state from the network in efficient formats and then feeding tools from the collector in your toolchain of choice tends to be a nice model. > > Would be great to do some study around existing solutions, see what worked, > what didn’t’ (and why) Getting various parties to discuss this publicly is the larger challenge. -- Jeff
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