datapath: Synchronize backend with the Linux neighbor table for new LB control-plane #39001
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Add support for syncing the load-balancing backend addresses to the Linux neighbor table for the new load-balancing control-plane. Implemented as a background job that watches upserts and deletes happening to the Table[*Backend] and calling InsertMiscNeighbor/DeleteMiscNeighbor accordingly. Signed-off-by: Jussi Maki <jussi@isovalent.com>
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borkmann
approved these changes
Apr 24, 2025
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This implements the missing "InsertMiscNeighbor" call for when backends are added or removed to keep
the Linux neighbor table up-to-date for e.g. XDP programs.