It wouldn't be implemented on a platform that doesn't support an external TCAM. It doesn't make much sense on a fixed platform with a single NPU (really ASIC but NPU is easier to type) since all the interfaces are sharing the same FIB. We would also never mix/match NPU scale types on the same fixed platform in the case where we have multiple NPUs.
The feature doesn't really have a lot of adoption, most buy the SE line cards for roles needing higher FIB scale. Thanks, Phil On 7/12/20, 7:11 PM, "Jason Lixfeld" <[email protected]> wrote: Will 'set path-color external-reach’ get support on NCS540? > On Jul 12, 2020, at 1:25 PM, Phil Bedard <[email protected]> wrote: > > In XR in general we support restricting routes installed in the FIB using table-policy at various locations, but it's done across all NPUs. This specific feature mixing hi/lo FIB line cards adds another knob to tag certain routes as "external" so we can determine which prefixes to install on cards with only external TCAM. > > The normal table-policy command is supported on NCS540, some use them as dedicated RRs. There is a 16 (newer N540-ACC-SYS) and 32 GB (24Z8Q2C-SYS) version of the 540. > > Thanks, > > Phil > > On 7/10/20, 2:10 PM, "cisco-nsp on behalf of Jason Lixfeld" <[email protected] on behalf of [email protected]> wrote: > > > >> On Jul 10, 2020, at 2:56 AM, Mark Tinka <[email protected]> wrote: >> >>> In the 9K days, they had SVD which did that: >>> >>> https://www.cisco.com/c/en/us/td/docs/routers/crs/software/crs_r4-3/routing/configuration/guide/b_routing_cg43xcrs/b_routing_cg43xcrs_chapter_010.html#concept_8E1919490E274B9E97F527166CB6EF8A >>> >>> I don’t know if SVD exists for chassis based NCS5K or if SRD^h^h^htable-policy is the new that, but SVD was per-linecard. Table-policy is a BGP sub configuration, and presumably LC agnostic. >> >> Never heard of SVD, but I found this for the NCS5500: >> >> https://xrdocs.io/ncs5500/tutorials/mixing-base-and-scale-LC-in-NCS5500/ > > > Nice. > > There’s caveat at the bottom of that article that says it’s not supported on J-based FFF pizza boxes. I wonder why? I wonder if that applies to Qumran-AX a’la NCS540 too? > > _______________________________________________ > cisco-nsp mailing list [email protected] > https://puck.nether.net/mailman/listinfo/cisco-nsp > archive at http://puck.nether.net/pipermail/cisco-nsp/ > > _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
