Table 1-80. Relationship In The Priority Determination Between The Group Band Control And - Hitachi GR2000 Series Configuration Commands

5. If addition/deletion/change in the parameters is executed in the qos-interface
(QoS interface information) in the Ethernet (NE100-8TB), communication in all of
the lines in the same NIF is temporarily disabled.
6. With the interface that has used this command to set the group band control, the
group band control function can be executed only when the output priority has
been determined using the output priority designation in the flow control. If the
DSCP rewriting has been designated in the flow control or if the output priority
has been determined by the input packet DSCP value designation, the group
band control function cannot be executed. Table 1-80 shows the relationship
between the group band control and the flow control in priority determination.
Table 1-80 Relationship in the priority determination between the group band control
Method for Deciding
Priority in Flow Control
Designation for out put
priority
Designation for DSCP
rewritten value
Designation for input
packet DSCP value
: Execution possible
7. When setting the group band control, the following restrictions shall apply:
It is necessary to set the control to a physical line in which no VLAN line has been
set.
When setting the group number three and higher, set the control only to the line
with line number zero. If the group number three or higher has been set, only the
line number zero will be able to communicate.
8. When setting the band control (traffic designation) in the VLAN line, the following
restrictions shall apply:
It is necessary that no transmission control other than the complete priority
control be set to a physical line on the VLAN line.
When setting a VLAN line greater than three lines to an interface in which the
band control (traffic designation) in the VLAN line has been set, choose only the
line with the line number zero. If a VLAN line greater than three lines has been
set, only the line with the line number zero is able to communicate.
9. It may not be possible to guarantee the specified bandwidth if bandwidth control
(traffic specified) or group bandwidth control is specified in Gigabit Ethernet and
the flow control function is enabled.
GR2K-GA-0014
Ver. 07-02
and the flow control
Subject Configuration
Definition Information
qos-ip-list
flow qos
filter-list
qos-ip-list
flow filter
flow qos
qos-ip-list
flow qos
x : Execution impossible.
Subject Advisability of Executing Functions
Parameter of the Group Band Control
priority_class x
priority
replace_tos x
replace_tos x
replace_tos x
replace_tos x
tos-map x
tos-map x
Filtering/QoS Information
1-165