Edimax ES-5224R+ Manuel d'utilisateur télécharger pdf (Page 147)

User Manual

Publication date: July, 2006

Revision A2

141

Function name:

D-Type TOS

Function description:

IP TOS Priority affect TOS fields of IP header, you can find it has 8-bit

SERVICE TYPE field that specifies how the datagram should be handled. The

field could be divided into six subfields as follows, PRECEDENCE (3 bits), D-

Type (Delay Priority, 1 bit ), T-Type (Throughput Priority, 1bit), R-Type

(Reliability Priority, 1bit ), M-Type (Monetary Cost Priority, 1bit ), and UNUSED.

PRECEDENCE 3-bits can arrange 8 kinds of priorities corresponding to the

0~7 priority in the following priority diagram. TOS Delay Priority Mapping

works while D-TYPE in TOS field of IP header of the packets received by the

switch is configured.

Parameter description:

TOS Delay Priority Mapping:

Each Priority can select any of Queue 0 ~ Queue 3. In Default, Priority 0

is mapping to Queue 0, Priority 1 is mapping to Queue 0, Priority 2 is

mapping to Queue 1, Priority 3 is mapping to Queue 1, Priority 4 is

mapping to Queue 2, Priority 5 is mapping to Queue 2, Priority 6 is

mapping to Queue 3, and Priority 0 is mapping to Queue 3.

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Edimax ES-5224R+ Manuel d'utilisateur Page 147