User's Manual

Bandwidth Management
55
Horizon Compact Plus Release 1.0.1 Wireless Ethernet Product User Manual – Volume 2
10.3 Throughput (Bandwidth) Logging
As discussed earlier, the maximum throughput speed, or bandwidth, of a system is determined by the
purchased licensed speed key. This allows a service provider to provide a limited bandwidth and to bill
for it accordingly.
Another billing method is to use Bandwidth Logging. This feature monitors bandwidth consumption over
time and the customer would be billed for the actual bandwidth consumed and not for a preset
maximum bandwidth. As with the speed key, you will need to consult with DragonWave Inc. if you wish
to make use of this option.
Note that Horizon Compact Plus does not support Bandwidth Logging in the “secondary_hsb_1wire”
redundancy mode, or the “secondary_x2” wireless link aggregation mode (WLAG).
The Bandwidth Logging feature creates records that indicate the bandwidth utilization over a set
reporting period. At the end of the reporting period the record is written to flash. Up to 60 records can be
stored in flash memory. After 60 records have been written, the oldest records are overwritten. Each
record (0 through 59) represents the bandwidth utilization accrued over a 24 hour period and may be
selectively viewed. A record that is currently being accrued may also be viewed.
The bandwidth logging report generator will be restarted when the user changes the utilization threshold
bin counters. That means that the next report will come 24 hours following the utilization threshold
change.
The bandwidth utilization is computed as the egress speed (i.e. the peer’s egress speed) divided by the
current speed of the link. It is important to note that the bandwidth utilization will be affected by changes
to the current speed. In general, when the current speed is halved the bandwidth utilization is doubled.
Procedure 10-3
Bandwidth Logging
Required Action
Steps
login
Log in as the Super User.
Configure bandwidth record
thresholds
Up to ten bandwidth utilization thresholds can configured. This command
will set the bandwidth utilization threshold integers as a percentage. The
ten integers are entered separated by spaces. The values shown below
are the default.
Sequence:
set bandwidth record thresholds 10 20 30 40 50 60 70 80 90
95 press Enter
The system responds:
Bandwidth Utilization Thresholds set to: 10 20 30 40 50 60 70 80
90 95
Note that the average period and the reporting period are preset values.