Datagrams = Transport or NEtwork packet?

Dubuku57

Hi everyone,

Im little confused about the naming of the layer 4 and layer 3 encapsulated packets cus ive seen conflicting info from different sources/different tests online!

Some say datagram is at layer 3 as in IP datagram.
Soem say datagrams are at layer 4 as in Datagram segments.

Can someone clarify this pls?!

Thanks!

APA

Layer 4 - TCP(Segments) or UDP(Datagrams)
Layer 3 - IP(Packets)
Layer 2 - Ethernet(Frames), ATM(Cells) etc.....
Layer 1 - Bits

dynamik

Layers 5 - 7, Layer 4, Layer 3, Layer 2, Layer 1

Data, Segments, Packets, Frames, Bits

Don't Smoke Pot For Breakfast

Dubuku57

Thanks...

segment: transport;
packet or datagram:network;
frame: data link;
bits: physical

Got this from McGraw.Hill CCNA Study Guide Exm 640-802

Thts why confused...=)

captobvious

dynamik wrote: »

Layers 5 - 7, Layer 4, Layer 3, Layer 2, Layer 1

Data, Segments, Packets, Frames, Bits

Don't Smoke Pot For Breakfast

Unless you have a job that doesn't random test!