Vivotek FD8371EV Instrukcja Użytkownika Pobierz pdf (Strona 85)

VIVOTEK

User's Manual - 85

QoS/DSCP (the DiffServ model)

DSCP-ECN denes QoS at Layer 3 (Network Layer). The Differentiated Services (DiffServ) model

is based on packet marking and router queuing disciplines. The marking is done by adding a eld

to the IP header, called the DSCP (Differentiated Services Codepoint). This is a 6-bit field that

provides 64 different class IDs. It gives an indication of how a given packet is to be forwarded,

known as the Per Hop Behavior (PHB). The PHB describes a particular service level in terms of

bandwidth, queueing theory, and dropping (discarding the packet) decisions. Routers at each

network node classify packets according to their DSCP value and give them a particular forwarding

treatment; for example, how much bandwidth to reserve for it.

Below are the setting options of DSCP (DiffServ Codepoint). Specify the DSCP value for each

application (0~63).

1 2 ... 80 81 82 83 84 85 86 87 88 89 90 ... 210 211

Brak uwag

Vivotek FD8371EV Instrukcja Użytkownika Strona 85