Filter
Top Products
Hitachi Gigabit Router GR2000 Series Enhanced Version Configuration Commands, Vol. 2
1-146 GR2K-GA-0014
Ver. 07-02
Table 1-71 Parameters list in bandwidth control (traffic)
Item Parameter
Support
Description
10BASE-T 100BASE-TX
1000BASE-SX
1000BASE-LX
1000BASE-LH
Queue No. -max_queue_nu
mber_8
-max_queue_nu
mber_32
8 queue 8, 32 queue Set the expanded number
of queue.
Traffic type per
queue
-constant (1)Fixed band Set it when the fixed band
is ensured.
-guarantee (2) Variable band Set it when the variable
band is set.
Minimum
guarantee band
for each queue
(*2) (*3) (*7)
-min_rate 1050kbit/s to
10000kbit/s
(*4)
1050kbit/s to
100000kbit/s
(*4)
1050kbit/s to
1000000kbit/s
(*5)
Set the minimum
guarantee band by
queues.
Maximum
transmission
band for each
queue
(*2) (*3) (*7)
-peak_rate 1050kbit/s to
10000kbit/s
(*4)(*6)
1050kbit/s to
100000kbit/s
(*4)(*6)
1050kbit/s to
1000000kbit/s
(*5)(*6)
Set the maximum
transmission band by
queues.
Excess band
allocation
ratio.(*8)
-weight 1 to 63 Distribute and allocate the
bands according to the
ratioinwhichtheexcess
band is set by queues.
*1: The router operates in eight queues when the maximum number of queues is not set.
*2: The maximum transmission band (192 kbit/s) is assigned when no band is set in a queue.
*3: The maximum error is about 5%.
*4: The relay performance per NIF is 360 Mbit/s.
*5: The relay performance of RP-D is 700 Mbit/s. Up to 1 Gbbit/s, no output thus occurs.
*6: Set the maximum transmission band of a queue as described below when the queue traffic type is specified as
guarantee.
Minimum guarantee band for each queue
≤
Maximum transmission band for each queue
≤
Maximum limitation band
of line
*7: The router operates under output priority control when the total number of guaranteed bands specified in each
queue exceeds the line rate. The guaranteed band specified in each queue is a maximum transmission band when
the traffic type is a fixed band. It is a minimum guarantee band when the traffic type is a variable band. The
unspecified queue is 192 kbit/s.
*8: The excess bandwidth is the bandwidth set from the maximum transmission bandwidth of a line for each queue.
For fixed bandwidth, it is the excess bandwidth obtained when the total of the maximum bandwidth is subtracted. For
variable bandwidth, it is the excess bandwidth obtained when the total of the minimum guarantee bandwidth is
subtracted. The bandwidth is divided and assigned according to the setting value of -weight when excess bandwidth
exists. A calculation example of excess bandwidth in a 100BASE-TX line is given below.