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GR2K-GA-0014 1-147
Ver. 07-02
Table 1-72 Calculation Example of Excess Bandwidth
Traffic Type
Minimum
Bandwidth
Guarantee (kbit/s)
Maximum
Bandwidth
Limitation (kbit/s)
Ratio of Excess
Bandwidth
Assignment
Excess Bandwidth
(kps)
-constant - 192 0 0
-constant - 10000 0 0
-guarantee 10000 - 1 19424x1/16=1214
-guarantee 20000 - 4 19424x4/16=4856
-constant - 192 0 0
-guarantee 30000 - 4 19424x4/16=4856
-guarantee 10000 - 7 19424x7/16=8498
Not set. - 192 0 0
* To set the band control (traffic designation) to a physical line in which a VLAN line is defined, do not change the
maximum queue number. If a change is made, close the applicable RP using the GR2000 Operations Commands,
Vol. 1, close rp command, and then release the closure using the free rp command.
Table 1-73 List of the Parameters When GR2000-1B and GR2000-2B Band Designation
(Traffic Designation) is Made.
Item Parameter
Support
Description
10BASE-T
100BASE-T
X
1000BASE-SX
1000BASE-LX
1000BASE-LH
Queue No.(*1) -max_queue_number_4
-max_queue_number_8
-max_queue_number_6
4(*5)
4, 8, 64 queue Set the expanded
number of queue.
Traffic type per
queue
-constant Fixed band Set it when the fixed
band is ensured.
-guarantee Variable band Set it when the
variable band is set.
Minimum guarantee
band for each queue
(*2) (*4)
-min_rate 80kbit/s -
10000kbit/s
80kbit/s -
10000kbit/s
80kbit/s -
590000kbit/s
Set the minimum
guarantee band by
queues.
Maximum
transmission band
for each queue
(*2) (*3) (*4)
-peak_rate 80kbit/s -
10000kbit/s
80kbit/s -
10000kbit/s
80kbit/s -
590000kbit/s
Set the maximum
transmission band by
queues.
Excess band
allocation ratio.
-weight 1 to 63 Distribute and
allocate the bands
accordingtotheratio
in which the excess
band is set by
queues.
*1: The router operates in four queues when the maximum number of queues is not set.
*2: The maximum error is about 2%.
*3: 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
*4: 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 80 kbps.
*5:The maximum queue number can be 64 only when set to one line (line number zero).