User Guide
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rev. 20150309
(default speed you wish to burst up to).
Note: Do not set BURST FACTOR to zero or a
negative number.
For our example above, on the
screen at right we entered the IP
address 10.99.100.01/32, and
then Incoming 2Mbps in bytes
(256,000) and Outgoing 1Mbps in
bytes (128,000), and a Burst
Factor of 4.
2Mbps incoming HARD LIMIT x 4
BURST FACTOR = 8Mbps inbound
BURST LIMIT
1Mbps outgoing HARD LIMIT x 4
BURST FACTOR = 4Mbps
outbound BURST LIMIT
Note: Once bursting has been set-
up, bursting on an IP address will start when that IP exceeds its rate limit (across all
connections for that IP). The burst applies to all connections across the IP address.
To remove Bursting on an IP Address:
You must remove the Hard Limit on the IP address and then recreate the Hard Limit by IP
without bursting defined.
From the Setup and Configuration Menu,
Click on ->
Manage Traffic Limits
->
[
Configure
Hard Limits by IP Address
]
, and scroll down the Remove a Hard Limit for an IP Address
window. Select the appropriate Hard Limit from the drop-down box, and
Click on ->
[
Remove Rule
].
To re-add the rule without bursting, from the Web GUI Main Menu, follow the instructions
under
Setting Hard Limits by IP
and leave the last field set to 1.
There are two
global burst parameters
that apply to all bursting that you have setup.
These are BURST DELAY, time between bursts, and BURST DURATION, how long a burst
lasts. BURST DELAY defaults to 80 seconds. BURST DURATION defaults to 10 seconds.
To change the global burst parameter defaults:
From the Maintenance and Reference Menu,
Click on ->
Maintenance
->
[
Run
a Command
].
Assuming the BURST DELAY to be 40 and BURST DURATION to
be 30, the command would be as follows:
Type in:
/usr/sbin/brctl setburstparams my 40 30
The first parameter, BURST DELAY, is the time an IP must wait (in seconds) before it can
burst again. If an IP has done a burst cycle it will be forced to wait this long in seconds
before it can burst again. BURST DELAY is defaulted to 80 seconds. This means that an IP
address will wait 80 seconds after its last burst duration completes before bursting again.
The second parameter, BURST DURATION, is the time an IP will be allowed to burst (in
seconds) before being relegated back to its base Hard Limit.
