Satellite Latency Is the Gateway Queue — Not the Orbit

A one-page take for product & network teams at LEO operators (Jio, Starlink and others): with low-Earth orbit, idle RTT is already great (~25–60 ms). What ruins the experience is bufferbloat at the gateway — and that's fixable in software, network-wide.

On LEO, the orbit is no longer the problem — the queue is. Under load, RTT jumps 2–4×. Remove that, and the link feels like fibre.

~25–60 ms

LEO idle RTT

already fibre-class
when uncongested

2–4×

RTT under load

bufferbloat — ~400–500 ms;
the avoidable part

Per-sub

AQM at the gateway

network-wide, not one
home router at a time

The problem, and the fix

Independent measurements show satellite RTT rising 2–4× under load — to ~400–500 ms — as the gateway/beam buffer fills. The industry already knows the answer: Active Queue Management. Starlink added fq_codel to its home router for exactly this. The opportunity is to do it where it scales — at the gateway, for every subscriber.

Latency under load on LEO — and what BNGSOFT removes ILLUSTRATIVE

Conceptual; magnitudes reflect published measurements. Propagation RTT is unchanged — what's removed is the queuing stacked on top.

BNGSOFT applies L4S/AQM + Interactive Flow Protection per subscriber, at the gateway, network-wide. Small latency-sensitive flows (DNS, TCP ACKs, voice, video-call, gaming) jump the queue while bulk transfers take the back-pressure — automatically, on every plan, with no customer action and no per-home router.

Why it matters for a LEO operator

EXPERIENCE

"As good as fibre."

Kills the load-induced spike that makes LEO feel laggy.
The differentiator vs every other satellite ISP.

SCALE

Whole network, not opt-in.

Fixed at the gateway for all subscribers — not just those who buy a fancy router.
Runs in the XDP fast path at a few % CPU.

PROOF

QoE you can measure.

Per-subscriber queuing-latency telemetry at the gateway.
Demonstrate the before/after on your own traffic.

The 20-minute demo: a single gateway node, a saturating download, a live ping/game — toggle BNGSOFT AQM on and watch the latency line drop from ~450 ms back to baseline. That's the whole pitch.

The bottom line

On LEO the orbit is fast — the gateway queue isn't. BNGSOFT removes the 2–4× load-induced latency with per-subscriber L4S/AQM + IFP at the gateway, network-wide, so every subscriber's link feels like fibre under load. Fix the latency you're adding on the ground.

Sources & honest framing: Exec brief positioning BNGSOFT for LEO satellite operators (Jio, Starlink and others); not a benchmark report. BNGSOFT figures (per-subscriber L4S/AQM + Interactive Flow Protection at the gateway, line-rate XDP) are indicative and must be validated per deployment. Satellite latency figures are from public sources and vary: RTT rising ~2–4× to ~400–500 ms under load and AQM/fq_codel as the fix (incl. Starlink's router fq_codel) — arXiv 2310.09242, Starlink (Improving Latency), independent latency/gaming reports; LEO idle RTT ~25–60 ms is a widely-published figure. BNGSOFT cannot change propagation delay and complements (does not replace) TCP Performance-Enhancing Proxies; it is ground-segment software at the gateway. The chart is ILLUSTRATIVE. Starlink®, Jio® and other names are trademarks of their owners; BNGSOFT is not affiliated.