User's Manual

Table Of Contents
Menus and Parameters
Val
The
to disa sifier).
4.2.6.6.3.2 To
The parameters enable defining prioritization in accordance
with either the 3 IP Precedence bits in the IP header in accordance with RFC 791,
or t ferentiated Services Code Point) bits in accordance with RFC
2474. The ToS Prioritization menu includes the following parameters:
4.2.6.6.3.2.1 T
or d
The
4.2.6.6.3.2.2 IP
The when the ToS Prioritization
Option is set to Enable IP Precedence (RFC791) Prioritization. If the value of the 3
is
rou n or equal to this threshold, the
packet will be transferred to the Low queue (unless it is assigned a High priority
Val
hich means that all packets get a low priority (equivalent
4.2.6.6.3.2.3
tion
n or equal to this threshold, the packet will be
y by another
classifier).
id values range from 0 to 7.
default value is 7, which means that all packets get a low priority (equivalent
bling the VLAN-based clas
S Prioritization
ToS Prioritization
he 6 DSCP (Dif
oS Prioritization Option
The ToS Prioritization Option defines whether ToS-based prioritization is enabled
isabled. The following options are available:
Disable
Enable IP Precedence (RFC791) Prioritization
Enable DSCP (RFC2474) Prioritization
default is Disable.
Precedence Threshold
IP Precedence Threshold parameter is applicable
IP Precedence bits in the IP header is higher than this threshold, the packet
ted to the High queue. If the value is lower tha
by another classifier).
id values range from 0 to 7.
The default value is 7, w
to disabling the IP Precedence-based classifier).
DSCP Threshold
The DSCP Threshold parameter is applicable when the ToS Prioritization Op
is set to Enable DSCP (RFC2474) Prioritization. If the value of the 6 DSCP bits in
the IP header is higher than this threshold, the packet is routed to the High
queue. If the value is lower tha
routed to the Low queue (unless it is assigned a High priorit
Valid values range from 0 to 63.
Operation and Administration
137