Hitachi GR2000 Series Configuration Commands page 239

The output priority and queuing priority are determined by a TOS value when
parameters replace_tos and tos_map of QoS IP frame condition information or
parameter replace_tos of filter list information are set.
The setting of this command is not required when the DSCP value of Diff-serv is
associated with the output priority and queuing priority using the recommended
value of this router. The recommended mapping list of the DSCP value and the
output priority and queuing priority is shown in Table 1-99 Mapping Example of
DSCP Value and Each Class.
Input Format
Settings
Changing settings
Deleting settings
Displaying settings
Parameters
Description:
Default:
Range of value:
Description:
Default:
Range of value:
Description:
Default:
Range of value:
GR2K-GA-0014
Ver. 07-02
This parameter sets TOS precedence.
See table below
0-7
This parameter sets the output priority class. In the case of
output priority control, used as the output priority class. In
the case of minimum bandwidth and round-robin, used as the
queue number.
See table below
1-8
This parameter sets the queuing priority class.
See table below.
1-4
Filtering/QoS Information
1-197