DIGISIM.OBSERVATORY · category 10 — network
2 live · 0 planned build 0.2 — : —
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category 10 · network

The wires under the world.

The internet is a physical thing. It runs along five hundred and seventy cables on the seafloor, through a few thousand peering rooms, and across the speed of light — which, as it turns out, is barely fast enough. These instruments draw the network as it really is: a planet-scale graph that pulses with route announcements and aches with distance.

apps live 2
in design 0
opened 05·28
NETW-001 · LIVE running
featured · live now
BGP Live

A live window into the internet's routing table changing in real time — every BGP announcement and withdrawal streamed straight from RIPE's RIS collectors.

networkbgplive
2026-06-05 /network/bgp-live
in this section · 17 apps
NETW-002 live
Submarine Cable Globe

Every submarine internet cable on a glowing 3D Earth, lit by live BGP route announcements from RIPE RIS Live — each light packet is a real route update flowing through the wires beneath the ocean.

network /network/cable-globe
NETW-003 ready
TCP Handshake

Watch two endpoints negotiate a connection packet-by-packet, then probe the link with slow-start congestion control that doubles, then backs off.

network /network/tcp-handshake
NETW-004 ready
QUIC vs TCP

Race a connection over TCP+TLS against QUIC side by side: watch QUIC win the handshake in one round trip, then survive a dropped packet that stalls every TCP stream at once.

network /network/quic-vs-tcp
NETW-005 ready
Packet Switching

Chop a message into numbered packets and watch them hop a router mesh by shortest path — queuing at congested links, arriving out of order, reassembling at the far host — then cut a link and see them reroute live.

network /network/packet-switching
NETW-006 ready
P2P Swarm

Watch a BitTorrent-style swarm distribute a file: a single seed sows pieces into a crowd of peers that trade what they have, prioritise the rarest pieces, and reward whoever feeds them — collectively finishing far faster than any one server could, even after the seed leaves.

network /network/p2p-swarm
NETW-007 ready
OSI Layers

Watch a message sink through the seven OSI layers — gaining a header at each step — then surface on the far host as every layer peels its wrapper back off.

network /network/osi-layers
NETW-008 ready
NAT Traversal

Watch two peers behind home routers punch a hole through their NATs to talk directly — discover their public ports via STUN, fire simultaneously, and fall back to a TURN relay when a symmetric NAT breaks the prediction.

network /network/nat-traversal
NETW-009 ready
Mesh Routing

A wireless ad-hoc mesh that routes packets hop-by-hop along the shortest path — then drag or kill a node and watch the route self-heal around the gap in real time.

network /network/mesh-routing
NETW-010 ready
IPv4 Hilbert Map

The entire 32-bit IPv4 address space folded onto a space-filling Hilbert curve — all 256 /8 blocks color-coded by their IANA holder, the famous xkcd #195 map made live and zoomable.

network /network/ipv4-map
NETW-011 ready
Email's Journey

Follow one message from Send to Inbox — SMTP submission, a DNS MX lookup, server-to-server delivery, and the SPF / DKIM / DMARC checks that decide inbox, spam, or rejection.

network /network/email
NETW-012 ready
DNS Resolver

Watch a domain name become an IP — your resolver chases the answer from the root to the .com TLD to the authoritative server, then caches it for an instant repeat.

network /network/dns-resolver
NETW-013 ready
Congestion Control

Race Reno, Cubic, and BBR on one shared bottleneck — watch the AIMD sawtooth, the cubic recovery curves, and BBR pace to the pipe while the buffer bloats the RTT.

network /network/congestion
NETW-014 ready
Anycast

One IP address announced from many sites at once — watch BGP route every user to the nearest, fail a site and see its users fail over instantly, and flip to unicast to feel the latency a single origin costs.

network /network/anycast
NETW-015 ready
Internet Traceroute

Type a hostname and watch an approximate path through the internet animate hop-by-hop on a 3D globe — each hop timed and geolocated, with latency bars and ISP labels.

network /network/traceroute
NETW-016 ready
Latency Planet

Your browser pings public endpoints around the world and draws arcs to each, thickness and colour by round-trip time. The speed of light, made viscerally measurable.

network /network/latency-planet
NETW-017 ready
Datacenter Heatmap Globe

Every internet exchange point on a 3D Earth — vertical extrusions whose height encodes member count, coloured by region. The internet's heartbeats made visible.

network /network/datacenter-heatmap
NETW-018 ready
AS-Graph Cosmos

The global internet's autonomous systems as a 3-D force-directed cosmos — nodes sized by customer-cone, colored by country, edges from observed BGP peering relationships.

network /network/as-graph
network · category 10 ← back to observatory