Trace Lab

Anatomy of a Frame

Capture live traffic on a kiosk's switch port, filter down to the request that submits an order, then read the layers to see how the same data is wrapped — bits, frame, packet, segment — as it heads onto the wire.

N10-009 · 1.1 N10-009 · 1.4 APNET · 4.2.B APNET · 2.2.A
Cedar Hollow Outfitters runs a self-checkout kiosk, kiosk-03 (172.22.14.57), on its retail VLAN. A shopper's order isn't reaching the store server, shop-web01 (172.22.14.10). You've put a mirror on the kiosk's switch port and you're going to watch exactly what leaves the machine when the shopper taps Place order — all the way down to the bytes on the wire.
interface:
Start the capture to load traffic.
Captured packets0 shown
No.TimeSourceDestination ProtocolLenInfo
No packets yet — press Start capture.
Packet detailsnone selected
Select a packet to expand its layers.
Bytes on the wire
The frame, byte by byte, appears here.
On the wire → Select a packet to see how its data is encapsulated.

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