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Johnathan Corgan
7df1f21429
Bring all 9 design documents into alignment with the current implementation. Major additions include MMP coverage at both link and session layers, wire format tables for SenderReport and ReceiverReport, UDP socket buffer sizing, PathMtuNotification status updates, and configuration parameter fixes (default_ttl key name, idle timeout MMP exclusion semantics).
FIPS Design Documents
Protocol design specifications for the Federated Interoperable Peering System — a self-organizing encrypted mesh network built on Nostr identities.
Reading Order
Start with the introduction, then follow the protocol stack from bottom to top. After the stack, the mesh operation document explains how all the pieces work together. Supporting references provide deeper dives into specific topics.
Protocol Stack
| Document | Description |
|---|---|
| fips-intro.md | Protocol introduction: goals, architecture, layer model |
| fips-transport-layer.md | Transport layer: datagram delivery over arbitrary media |
| fips-link-layer.md | FIPS Link Protocol (FLP): peer authentication, link encryption, forwarding |
| fips-session-layer.md | FIPS Session Protocol (FSP): end-to-end encryption, sessions |
| fips-ipv6-adapter.md | IPv6 adaptation: TUN interface, DNS, MTU enforcement |
Mesh Behavior
| Document | Description |
|---|---|
| fips-mesh-operation.md | How the mesh operates: routing, discovery, error recovery |
| fips-wire-formats.md | Wire format reference for all message types |
Supporting References
| Document | Description |
|---|---|
| fips-spanning-tree.md | Spanning tree algorithms: root election, parent selection, coordinates |
| fips-bloom-filters.md | Bloom filter math: FPR analysis, size classes, split-horizon |
Implementation
| Document | Description |
|---|---|
| fips-software-architecture.md | Stable architectural decisions guiding the codebase |
| fips-state-machines.md | Phase-based state machine pattern (Rust enum-of-structs) |
| fips-configuration.md | YAML configuration reference |
Supplemental
| Document | Description |
|---|---|
| spanning-tree-dynamics.md | Spanning tree walkthroughs: convergence scenarios, worked examples |
Document Relationships
fips-intro.md
│
┌──────────────┼──────────────┐
▼ ▼ ▼
fips-transport-layer fips-mesh- fips-software-
│ operation architecture
▼ │ │
fips-link-layer ◄────────┤ ▼
│ │ fips-state-machines
▼ │
fips-session-layer ├──► fips-spanning-tree
│ │ │
▼ └──► fips-bloom-filters
fips-ipv6-adapter
fips-wire-formats
(referenced by all layer docs)
fips-configuration
(standalone reference)
spanning-tree-dynamics
(pedagogical companion to fips-spanning-tree)