QOS - Video, Voice and Data

	Video	Voice	Data
Example	Video Conference	VOIP phone	FTP(File transfer protocol)
Packet size	+-256 – 1518 bytes	+-180 bytes	+-512 I.e.(greater if reset MTU (Minimum transmission unit))
Maximum Delay	If video stream up to 3 minutes if conference +-150 ms	+-150 ms	Not greater than packet TTL (Time to live
Loss Sensitive	No,but effect quality of video.	No, but effect quality of voice.	Yes, Corrupting files
Jitter Sensitive	Yes,effect quality of video.	Yes,effect quality of voice.	No
Bit rate	64kbps	16 kbps	Depend on file size
Transport	UDP	UDP	TCP
COS and/or TOS (Precedence bits)	Example: Bits 100 → 4 (High priority)	Example: Bits 010 → 2 (Medium priority)	Example: Bits 001 → 1(Low priority)
Table: QOS - Video, Voice and Data