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name: sigcomm-topic-selection description: Use when deciding whether a project is a strong ACM SIGCOMM fit, choosing the research versus experience track, identifying the networking-stack mechanism at the core of the contribution, and routing misfits to NSDI, MobiCom, CoNEXT, IMC, SIGMETRICS, or a systems venue before writing begins.

SIGCOMM Topic Selection

Use this before writing, and before committing the single yearly deadline. SIGCOMM is the broad networking flagship: it rewards a contribution to the design, measurement, or analysis of networks and communication systems that is stated as a mechanism or architecture and proven under realistic conditions. Reopen the current CFP's topic list before final routing — emphasis drifts between editions.

Fit test

• Prefer SIGCOMM when the contribution is a networking-stack idea — a protocol, transport or congestion mechanism, routing or forwarding architecture, data-center or wide-area fabric, programmable-data-plane technique, network measurement result, or systems-for-networking design — with evaluation on a testbed, trace, or deployment.
• The bar is a principle that travels, not a tuned deployment. A single-site tuning win with no generalizable mechanism reads as under-contribution here even if the numbers are good.
• Both tracks live under this bar: research wants design novelty and depth; experience wants lessons only real operation at scale can teach.

Where else the work might belong

Signal in the project	Better-fit venue	Why
Networked-systems build with heavy implementation, USENIX-style	NSDI	Design-and-implementation focus; two deadlines a year
Mobile, wireless, or physical-layer / RF mechanism	MobiCom (or SIGMOBILE venues)	Over-the-air and device evidence is that community's core
Solid networking result, but incremental for the flagship	CoNEXT	SIGCOMM's sister venue for strong but narrower contributions
Pure Internet/traffic measurement with no new mechanism	IMC	Measurement-methodology venue; SIGCOMM wants measurement to motivate a mechanism
Performance modeling / analysis as the contribution	SIGMETRICS	Analytical and evaluation-method emphasis
OS/storage/distributed-systems core, networking secondary	OSDI / SOSP	Systems-first framing

The routing that trips people up

SIGCOMM and NSDI overlap heavily, and authors agonize over the split. A workable heuristic: if the paper's spine is a networking abstraction, protocol, or measurement-driven design argument, it leans SIGCOMM; if the spine is a built-and-deployed system whose value is in the engineering and implementation, it leans NSDI. Neither is a rule — strong papers cross the line both ways — but the single SIGCOMM deadline means a misroute costs a year, so decide deliberately. IMC is the other frequent confusion: a measurement paper needs a mechanism or a design implication to be SIGCOMM rather than IMC.

Vignette: where a congestion-control result goes

A project proposes a new congestion signal and shows it cuts tail flow-completion time on a data-center testbed. SIGCOMM reading: strong fit — a transport mechanism with tail evidence under realistic traffic is the house genre (compare DCTCP and pFabric in the exemplars). Strip the mechanism and keep only a measurement of how badly today's schemes behave, and it drifts toward IMC; rebuild it as a fully implemented, deployed RPC stack whose contribution is the system, and NSDI becomes competitive. Same core, three homes.

Sharpening moves before committing

• Name the mechanism in one sentence: the protocol change, the architectural shift, or the measured invariant. If no mechanism exists, the SIGCOMM framing does not exist either.
• Decide the track honestly and early; the experience track is a strength for real deployments, not a demotion.
• Confirm the evaluation can reach testbed, trace, or deployment evidence, not simulation only; simulation-only fabric claims are a quiet fit failure at this venue.
• Weigh the one-deadline cost: if the result is a year from convincing, plan the year rather than gambling the single February slot.

Output format

[Fit] strong SIGCOMM / possible SIGCOMM / better elsewhere
[Track] research / experience / n-a
[Best venue] SIGCOMM / NSDI / MobiCom / CoNEXT / IMC / SIGMETRICS / other
[Mechanism sentence] <one sentence naming the networking contribution>
[Top rejection risk] <novelty / evidence realism / measurement-only / scope>
[Next action] <mechanism, evaluation, framing, or venue switch>