Gigabit Router Configuration Guide

Hitachi Gigabit Router GR2000 SeriesEnhanced Version Configuration Commands, Vol. 2
1-156 GR2K-GA-0014
Ver. 07-02
The maximum transmission band is set to the VLAN line or the group.
Default: None
Rangeofvalue: Thevaluesettingrangevariesbyeachlinetype.
Table1-78showstherangeinwhichaline’smaximum
transmission range can be set.
The maximum transmission band is set when the fixed band assures each queue
will transmit a packet. Table 1-79 shows the list of the parameters.
Table 1-78 Range in Which a Line’s Maximum Transmission Range Can Be Set
No. NIF Type Line Type Available Range
1 GR2000-1B 10BASE-T full-duplex 320 - 10000
2 GR2000-2B 100BASE-TX full-duplex 320 - 100000
3 Ethernet containing
NEB100-4TB
NEB1G-1B (*)
1000BASE-SX
1000BASE-LX
1000BASE-LH
320 - 590000
*: NEB1G-1B can be set at up to 590 Mbit/s.
Table 1-79 List of Parameters When the Band Control (Traffic Designation) in the VLAN
Line or the Group Band Control is Designated
Item Parameter
Support
Description
10BASE-T 100BASE-TX
1000BASE-SX
1000BASE-LX
1000BASE-LH
Queue No.(*1) -traffic 1 to 4(*1) Sets the queue number.
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 80 kbit/s -
10000 kbit/s
80 kbit/s -
10000 kbit/s
80 kbit/s -
590000 kbit/s
Set the minimum
guarantee band by
queues.
Maximum
transmission band
for each queue
(*2) (*3) (*4)
-peak_rate 80 kbit/s -
10000 kbit/s
80 kbit/s -
10000 kbit/s
80 kbit/s -
590000 kbit/s
Set the maximum
transmission band by
queues.
Excess band
allocation ratio.
-weight 1 to 63 Distribute and allocate the
bands according to the
ratioinwhichtheexcess
band is set by queues.
*1: The VAN line or the group set at four queues.
*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.