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Docs/terminology - #321
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miesi wants to merge 3 commits into
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Network engineers read DIM output with RFC and RIR vocabulary in mind, and several words mean something else in DIM. New page dim/doc/terminology.rst maps each DIM term (ipblock, Container, Subnet, Pool, Delegation, Static, Reserved, Available, layer3domain, allocate) to the closest standard term, quotes the source verbatim with section numbers and states the deviation. RIPE policy (RIPE-826, RIPE-738) and DIM-only concepts are labelled as not RFC. It explains in particular what a Delegation is (a block cut out of a pool's Subnet for one consumer), why pools exist (automated provisioning) and that DIM cannot tell a Subnet configured on an interface from a range of BGP-announced service addresses. Verified against the code while writing it: /31 Subnets get both addresses Reserved by default, /127 Subnets one of the two, and the gateway address is not reserved at all. Co-Authored-By: Claude Opus 5.5 <[email protected]>
Follows "fix(dim): never hand out the subnet gateway automatically". Co-Authored-By: Claude Opus 5.5 <[email protected]>
The change that made automatic allocation skip the gateway was dropped: DIM cannot know the gateway convention of a network (first, last, .10 address). Interface and VRRP addresses are protected by registering their DNS names, which makes them Static. Co-Authored-By: Claude Opus 5.5 <[email protected]>
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Explain DIM wording with common network terminology, introduce concepts unique to DIM.