TOPOLOGY
OSI Physical Layer · Layer 1 · Network Architecture

PHYSICAL TOPOLOGY

// HOW DEVICES ARE PHYSICALLY CONNECTED — SELECT A TOPOLOGY TO EXPLORE
// CLICK NODES TO SEND PACKETS · CLICK TWICE TO SIMULATE FAILURES

BUS TOPOLOGY NODES: 6 LINKS: 5 REDUNDANCY: NONE IDLE
SPD:1.5×
Bus Topology
IEEE 802.3 · 10BASE-2 / 10BASE-5

All devices share a single cable segment (the backbone). Each device connects to the backbone via a short stub cable. Data sent by any node propagates in both directions along the backbone until it reaches a terminator, where it is absorbed.

ADVANTAGES / DISADVANTAGES
REAL-WORLD EXAMPLES
HOW PACKET TRAVELS

Source node puts signal on backbone → signal propagates to both ends → destination node reads its addressed frame → terminators absorb remaining signal.

Nodes6
Links5 stubs
Fault TolerancePOOR
ScalabilityLOW
Active / Sending
Hub / Switch
Selected Source
Failed Node
Active Link
Failed Link
Click node = select · Double-click = fail/restore
TOPOLOGY: BUS
PACKETS SENT: 0
FAILED NODES: 0
ACTIVE LINKS: