Difference between revisions of "Manual:Queues - Burst"

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==Example Burst-time=8s==
 
==Example Burst-time=8s==
  
<table class="styled_table">
+
Average rate is calculated every 1/16 of burst time, so in this case 0,5s
<tr>
 
  <th width="20">Seconds (s)</th>
 
  <th width="3">0</th>
 
  <th width="3">1</th>
 
  <th width="3">2</th>
 
  <th width="3">3</th>
 
  <th width="3">4</th>
 
  <th width="3">5</th>
 
  <th width="3">6</th>
 
  <th width="3">7</th>
 
  <th width="3">8</th>
 
  <th width="3">9</th>
 
  <th width="3">10</th>
 
  <th width="3">11</th>
 
  <th width="3">12</th>
 
  <th width="3">13</th>
 
  <th width="3">14</th>
 
  <th width="3">15</th>
 
  <th width="3">16</th>
 
  <th width="3">17</th>
 
  <th width="3">18</th>
 
  <th width="3">19</th>
 
  <th width="3">20</th>
 
  <th width="3">21</th>
 
  <th width="3">22</th>
 
  <th width="3">23</th>
 
  <th width="3">24</th>
 
  <th width="3">25</th>
 
  <th width="3">26</th>
 
  <th width="3">27</th>
 
  <th width="3">28</th>
 
  <th width="3">29</th>
 
  <th width="3">30</th>
 
  <th width="3">31</th>
 
</tr>
 
<tr>
 
  <th>Actual Rate (Mbps)</th>
 
  <td>4</td>
 
  <td>4</td>
 
  <td>4</td>
 
  <td>4</td>
 
  <td>4</td>
 
  <td>4</td>
 
  <td>4</td>
 
  <td>4</td>
 
  <td>4</td>
 
  <td>4</td>
 
  <td>4</td>
 
  <td>4</td>
 
  <td>4</td>
 
  <td>4</td>
 
  <td>4</td>
 
  <td>4</td>
 
  <td>4</td>
 
  <td>4</td>
 
  <td>4</td>
 
  <td>4</td>
 
  <td>4</td>
 
  <td>4</td>
 
  <td>4</td>
 
  <td>4</td>
 
  <td>4</td>
 
  <td>4</td>
 
  <td>4</td>
 
  <td>4</td>
 
  <td>4</td>
 
  <td>4</td>
 
  <td>4</td>
 
  <td>4</td>
 
</tr>
 
<tr>
 
  <th>Average Rate (Mbps)</th>
 
  <td>4</td>
 
  <td>4</td>
 
  <td>4</td>
 
  <td>4</td>
 
  <td>4</td>
 
  <td>4</td>
 
  <td>4</td>
 
  <td>4</td>
 
  <td>4</td>
 
  <td>4</td>
 
  <td>4</td>
 
  <td>4</td>
 
  <td>4</td>
 
  <td>4</td>
 
  <td>4</td>
 
  <td>4</td>
 
  <td>4</td>
 
  <td>4</td>
 
  <td>4</td>
 
  <td>4</td>
 
  <td>4</td>
 
  <td>4</td>
 
  <td>4</td>
 
  <td>4</td>
 
  <td>4</td>
 
  <td>4</td>
 
  <td>4</td>
 
  <td>4</td>
 
  <td>4</td>
 
  <td>4</td>
 
  <td>4</td>
 
  <td>4</td>
 
</tr>
 
  
<tr>
 
  <th>Burst Allowed</th>
 
  <td>Yes</td>
 
  <td>Yes</td>
 
  <td>Yes</td>
 
  <td>Yes</td>
 
  <td>Yes</td>
 
  <td>Yes</td>
 
  <td>Yes</td>
 
  <td>Yes</td>
 
  <td>Yes</td>
 
  <td>Yes</td>
 
  <td>Yes</td>
 
  <td>Yes</td>
 
  <td>Yes</td>
 
  <td>Yes</td>
 
  <td>Yes</td>
 
  <td>Yes</td>
 
  <td>Yes</td>
 
  <td>Yes</td>
 
  <td>Yes</td>
 
  <td>Yes</td>
 
  <td>Yes</td>
 
  <td>Yes</td>
 
  <td>Yes</td>
 
  <td>Yes</td>
 
  <td>Yes</td>
 
  <td>Yes</td>
 
  <td>Yes</td>
 
  <td>Yes</td>
 
  <td>Yes</td>
 
  <td>Yes</td>
 
  <td>Yes</td>
 
  <td>Yes</td>
 
</tr>
 
  
 
+
:Zero second - average-rate=(0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0)/8=0Kbps, average-rate < burst-threshold -> Burst is allowed -> Actual-rate=4Mbps (2Mb per 0,5sek)
  <td>Yes</td>
+
:0,5  second - average-rate=(0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+2)/8=250Kbps, average-rate < burst-threshold -> Burst is allowed -> Actual-rate=4Mbps  (2Mb per 0,5sek)
</table>
+
:1,0  second - average-rate=(0+0+0+0+0+0+0+0+0+0+0+0+0+0+2+2)/8=500Kbps, average-rate < burst-threshold -> Burst is allowed -> Actual-rate=4Mbps  (2Mb per 0,5sek)
 
+
:1,5  second - average-rate=(0+0+0+0+0+0+0+0+0+0+0+0+0+2+2+2)/8=750Kbps, average-rate < burst-threshold -> Burst is allowed -> Actual-rate=4Mbps  (2Mb per 0,5sek)
  <td>(0+0+0+0+0+0+0+0)/8=0Mbps</td>
+
:2,0  second - average-rate=(0+0+0+0+0+0+0+0+0+0+0+0+2+2+2+2)/8=1000Kbps, average-rate < burst-threshold -> Burst is allowed -> Actual-rate=4Mbps  (2Mb per 0,5sek)
 +
:2,5  second - average-rate=(0+0+0+0+0+0+0+0+0+0+0+2+2+2+2+2)/8=1250Kbps, average-rate < burst-threshold -> Burst is allowed -> Actual-rate=4Mbps  (2Mb per 0,5sek)
 +
:3,0  second - average-rate=(0+0+0+0+0+0+0+0+0+0+2+2+2+2+2+2)/8=1500Kbps, average-rate = burst-threshold -> Burst '''not''' allowed -> '''Actual-rate=2Mbps'''  (1Mb per 0,5sek)
 +
:3,5  second - average-rate=(0+0+0+0+0+0+0+0+0+2+2+2+2+2+2+1)/8=1625Kbps, average-rate > burst-threshold -> Burst not allowed -> Actual-rate=2Mbps  (1Mb per 0,5sek)
 +
:4,0  second - average-rate=(0+0+0+0+0+0+0+0+2+2+2+2+2+2+1+1)/8=1750Kbps, average-rate > burst-threshold -> Burst not allowed -> Actual-rate=2Mbps  (1Mb per 0,5sek)
 +
:4,5  second - average-rate=(0+0+0+0+0+0+0+2+2+2+2+2+2+1+1+1)/8=1875Kbps, average-rate > burst-threshold -> Burst not allowed -> Actual-rate=2Mbps  (1Mb per 0,5sek)
 +
:5,0  second - average-rate=(0+0+0+0+0+0+2+2+2+2+2+2+1+1+1+1)/8=2000Kbps, average-rate > burst-threshold -> Burst not allowed -> Actual-rate=2Mbps  (1Mb per 0,5sek)
 +
:5,5  second - average-rate=(0+0+0+0+0+2+2+2+2+2+2+1+1+1+1+1)/8=2125Kbps, average-rate > burst-threshold -> Burst not allowed -> Actual-rate=2Mbps  (1Mb per 0,5sek)
 +
:6,0  second - average-rate=(0+0+0+0+2+2+2+2+2+2+1+1+1+1+1+1)/8=2250Kbps, average-rate > burst-threshold -> Burst not allowed -> Actual-rate=2Mbps  (1Mb per 0,5sek)
 +
:6,5  second - average-rate=(0+0+0+2+2+2+2+2+2+1+1+1+1+1+1+1)/8=2375Kbps, average-rate > burst-threshold -> Burst not allowed -> Actual-rate=2Mbps  (1Mb per 0,5sek)
 +
:7,0  second - average-rate=(0+0+2+2+2+2+2+2+1+1+1+1+1+1+1+1)/8=2500Kbps, average-rate > burst-threshold -> Burst not allowed -> Actual-rate=2Mbps  (1Mb per 0,5sek)
 +
:7,5  second - average-rate=(0+2+2+2+2+2+2+1+1+1+1+1+1+1+1+1)/8=2625Kbps, average-rate > burst-threshold -> Burst not allowed -> Actual-rate=2Mbps  (1Mb per 0,5sek)
 +
:8,0  second - average-rate=(2+2+2+2+2+2+1+1+1+1+1+1+1+1+1+1)/8=2750Kbps, average-rate > burst-threshold -> Burst not allowed -> Actual-rate=2Mbps  (1Mb per 0,5sek)
 +
:8,5  second - average-rate=(2+2+2+2+2+1+1+1+1+1+1+1+1+1+1+1)/8=2625Kbps, average-rate > burst-threshold -> Burst not allowed -> Actual-rate=2Mbps  (1Mb per 0,5sek)
 +
:9,0  second - average-rate=(2+2+2+2+1+1+1+1+1+1+1+1+1+1+1+1)/8=2500Kbps, average-rate > burst-threshold -> Burst not allowed -> Actual-rate=2Mbps  (1Mb per 0,5sek)
 +
:9,5  second - average-rate=(2+2+2+1+1+1+1+1+1+1+1+1+1+1+1+1)/8=2375Kbps, average-rate > burst-threshold -> Burst not allowed -> Actual-rate=2Mbps  (1Mb per 0,5sek)
 +
:10,0 second - average-rate=(2+2+1+1+1+1+1+1+1+1+1+1+1+1+1+1)/8=2250Kbps, average-rate > burst-threshold -> Burst not allowed -> Actual-rate=2Mbps  (1Mb per 0,5sek)
 +
:10,5 second - average-rate=(2+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1)/8=2125Kbps, average-rate > burst-threshold -> Burst not allowed -> Actual-rate=2Mbps  (1Mb per 0,5sek)
 +
:11,0 second - average-rate=(1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1)/8=2000Kbps, average-rate > burst-threshold -> Burst not allowed -> Actual-rate=2Mbps  (1Mb per 0,5sek)
 +
--------------------------------------------------------------------------------------------------------------------------------------------------------------------
 +
:19,0 second - average-rate=(1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1)/8=2000Kbps, average-rate > burst-threshold -> Burst not allowed -> '''Actual-rate=0Mbps'''  (0Mb per 0,5sek)
 +
:19,5 second - average-rate=(1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+0)/8=1875Kbps, average-rate > burst-threshold -> Burst not allowed -> Actual-rate=0Mbps  (0Mb per 0,5sek)
 +
:20,0 second - average-rate=(1+1+1+1+1+1+1+1+1+1+1+1+1+1+0+0)/8=1750Kbps, average-rate > burst-threshold -> Burst not allowed -> Actual-rate=0Mbps  (0Mb per 0,5sek)
 +
:20,5 second - average-rate=(1+1+1+1+1+1+1+1+1+1+1+1+1+0+0+0)/8=1625Kbps, average-rate > burst-threshold -> Burst not allowed -> Actual-rate=0Mbps  (0Mb per 0,5sek)
 +
:21,0 second - average-rate=(1+1+1+1+1+1+1+1+1+1+1+1+1+0+0+0)/8=1625Kbps, average-rate > burst-threshold -> Burst not allowed -> Actual-rate=0Mbps  (0Mb per 0,5sek)
 +
:21,5 second - average-rate=(1+1+1+1+1+1+1+1+1+1+1+1+0+0+0+0)/8=1500Kbps, average-rate > burst-threshold -> Burst not allowed -> Actual-rate=0Mbps  (0Mb per 0,5sek)
 +
:22,0 second - average-rate=(1+1+1+1+1+1+1+1+1+1+1+0+0+0+0+0)/8=1375Kbps, average-rate < burst-threshold -> Burst '''is''' allowed -> Actual-rate=0Mbps  (0Mb per 0,5sek)
 +
:22,5 second - average-rate=(1+1+1+1+1+1+1+1+1+1+0+0+0+0+0+0)/8=1250Kbps, average-rate < burst-threshold -> Burst is allowed -> Actual-rate=0Mbps  (0Mb per 0,5sek)
 +
:23,0 second - average-rate=(1+1+1+1+1+1+1+1+1+0+0+0+0+0+0+0)/8=1125Kbps, average-rate < burst-threshold -> Burst is allowed -> Actual-rate=0Mbps (0Mb per 0,5sek)
 +
:23,5 second - average-rate=(1+1+1+1+1+1+1+1+0+0+0+0+0+0+0+0)/8=1000Kbps, average-rate < burst-threshold -> Burst is allowed -> '''Actual-rate=2Mbps'''  (1Mb per 0,5sek)
 +
:24,0 second - average-rate=(1+1+1+1+1+1+1+0+0+0+0+0+0+0+0+1)/8=1000Kbps, average-rate < burst-threshold -> Burst is allowed -> '''Actual-rate=4Mbps'''  (2Mb per 0,5sek)
 +
:24,5 second - average-rate=(1+1+1+1+1+1+0+0+0+0+0+0+0+0+1+2)/8=1125Kbps, average-rate < burst-threshold -> Burst is allowed -> Actual-rate=4Mbps  (2Mb per 0,5sek)
 +
:25,0 second - average-rate=(1+1+1+1+1+0+0+0+0+0+0+0+0+1+2+2)/8=1250Kbps, average-rate < burst-threshold -> Burst is allowed -> Actual-rate=4Mbps  (2Mb per 0,5sek)
 +
:25,5 second - average-rate=(1+1+1+1+0+0+0+0+0+0+0+0+1+2+2+2)/8=1375Kbps, average-rate < burst-threshold -> Burst is allowed -> Actual-rate=4Mbps  (2Mb per 0,5sek)
 +
:26,0 second - average-rate=(1+1+1+0+0+0+0+0+0+0+1+2+2+2+2+2)/8=1500Kbps, average-rate = burst-threshold -> Burst '''not''' allowed -> Actual-rate=2Mbps  (1Mb per 0,5sek)
 +
:26,5 second - average-rate=(1+1+0+0+0+0+0+0+0+1+2+2+2+2+2+1)/8=1500Kbps, average-rate = burst-threshold -> Burst not allowed -> Actual-rate=2Mbps  (1Mb per 0,5sek)
 +
:27,0 second - average-rate=(1+0+0+0+0+0+0+0+1+2+2+2+2+2+1+1)/8=1500Kbps, average-rate = burst-threshold -> Burst not allowed -> Actual-rate=2Mbps  (1Mb per 0,5sek)
 +
:27,5 second - average-rate=(0+0+0+0+0+0+0+1+2+2+2+2+2+1+1+1)/8=1500Kbps, average-rate = burst-threshold -> Burst not allowed -> Actual-rate=2Mbps  (1Mb per 0,5sek)
 +
:28,0 second - average-rate=(0+0+0+0+0+0+1+2+2+2+2+2+1+1+1+1)/8=1625Kbps, average-rate > burst-threshold -> Burst not allowed -> Actual-rate=2Mbps  (1Mb per 0,5sek)
 +
:28,5 second - average-rate=(0+0+0+0+0+1+2+2+2+2+2+1+1+1+1+1)/8=1750Kbps, average-rate > burst-threshold -> Burst not allowed -> Actual-rate=2Mbps  (1Mb per 0,5sek)
 +
:29,0 second - average-rate=(0+0+0+0+1+2+2+2+2+2+1+1+1+1+1+1)/8=1875Kbps, average-rate > burst-threshold -> Burst not allowed -> Actual-rate=2Mbps  (1Mb per 0,5sek)
 +
:29,5 second - average-rate=(0+0+0+1+2+2+2+2+2+1+1+1+1+1+1+1)/8=2000Kbps, average-rate > burst-threshold -> Burst not allowed -> Actual-rate=2Mbps  (1Mb per 0,5sek)
 +
:30,0 second - average-rate=(0+0+1+2+2+2+2+2+1+1+1+1+1+1+1+1)/8=2125Kbps, average-rate > burst-threshold -> Burst not allowed -> Actual-rate=2Mbps  (1Mb per 0,5sek)
 +
:30,5 second - average-rate=(0+1+2+2+2+2+2+1+1+1+1+1+1+1+1+1)/8=2250Kbps, average-rate > burst-threshold -> Burst not allowed -> Actual-rate=2Mbps  (1Mb per 0,5sek)
 +
:31,0 second - average-rate=(1+2+2+2+2+2+1+1+1+1+1+1+1+1+1+1)/8=2375Kbps, average-rate > burst-threshold -> Burst not allowed -> Actual-rate=2Mbps  (1Mb per 0,5sek)
  
  

Revision as of 11:02, 14 October 2008

Theory

To understand burst it is necessary to be aware of 5 concepts:

  1. burst-limit (NUMBER) : maximal upload/download data rate which can be reached while the burst is active
  2. burst-time (TIME) : period of time, in seconds, over which the average data rate is calculated. (This is NOT the time of actual burst)
  3. burst-threshold (NUMBER) : when average data rate is below this value - burst is allowed, as soon as average data rate reach this value - burst is denied. (basically this is burst on/off switch). For optimal burst behavior this value should above limit-at value and below max-limit value
  4. average-rate (read-only) : Every 1/16 part of the burst-time, the router calculates the average data rate of each class over the last burst-time seconds.
  5. actual-rate (read-only) : actual traffic transfer rate of the queue

To simplify calculations for examples we will use limit-at=1M, max-limit=2M, burst-threshold=1500k, burst-limit=4M


Example Burst-time=8s

Average rate is calculated every 1/16 of burst time, so in this case 0,5s


Zero second - average-rate=(0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0)/8=0Kbps, average-rate < burst-threshold -> Burst is allowed -> Actual-rate=4Mbps (2Mb per 0,5sek)
0,5 second - average-rate=(0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+2)/8=250Kbps, average-rate < burst-threshold -> Burst is allowed -> Actual-rate=4Mbps (2Mb per 0,5sek)
1,0 second - average-rate=(0+0+0+0+0+0+0+0+0+0+0+0+0+0+2+2)/8=500Kbps, average-rate < burst-threshold -> Burst is allowed -> Actual-rate=4Mbps (2Mb per 0,5sek)
1,5 second - average-rate=(0+0+0+0+0+0+0+0+0+0+0+0+0+2+2+2)/8=750Kbps, average-rate < burst-threshold -> Burst is allowed -> Actual-rate=4Mbps (2Mb per 0,5sek)
2,0 second - average-rate=(0+0+0+0+0+0+0+0+0+0+0+0+2+2+2+2)/8=1000Kbps, average-rate < burst-threshold -> Burst is allowed -> Actual-rate=4Mbps (2Mb per 0,5sek)
2,5 second - average-rate=(0+0+0+0+0+0+0+0+0+0+0+2+2+2+2+2)/8=1250Kbps, average-rate < burst-threshold -> Burst is allowed -> Actual-rate=4Mbps (2Mb per 0,5sek)
3,0 second - average-rate=(0+0+0+0+0+0+0+0+0+0+2+2+2+2+2+2)/8=1500Kbps, average-rate = burst-threshold -> Burst not allowed -> Actual-rate=2Mbps (1Mb per 0,5sek)
3,5 second - average-rate=(0+0+0+0+0+0+0+0+0+2+2+2+2+2+2+1)/8=1625Kbps, average-rate > burst-threshold -> Burst not allowed -> Actual-rate=2Mbps (1Mb per 0,5sek)
4,0 second - average-rate=(0+0+0+0+0+0+0+0+2+2+2+2+2+2+1+1)/8=1750Kbps, average-rate > burst-threshold -> Burst not allowed -> Actual-rate=2Mbps (1Mb per 0,5sek)
4,5 second - average-rate=(0+0+0+0+0+0+0+2+2+2+2+2+2+1+1+1)/8=1875Kbps, average-rate > burst-threshold -> Burst not allowed -> Actual-rate=2Mbps (1Mb per 0,5sek)
5,0 second - average-rate=(0+0+0+0+0+0+2+2+2+2+2+2+1+1+1+1)/8=2000Kbps, average-rate > burst-threshold -> Burst not allowed -> Actual-rate=2Mbps (1Mb per 0,5sek)
5,5 second - average-rate=(0+0+0+0+0+2+2+2+2+2+2+1+1+1+1+1)/8=2125Kbps, average-rate > burst-threshold -> Burst not allowed -> Actual-rate=2Mbps (1Mb per 0,5sek)
6,0 second - average-rate=(0+0+0+0+2+2+2+2+2+2+1+1+1+1+1+1)/8=2250Kbps, average-rate > burst-threshold -> Burst not allowed -> Actual-rate=2Mbps (1Mb per 0,5sek)
6,5 second - average-rate=(0+0+0+2+2+2+2+2+2+1+1+1+1+1+1+1)/8=2375Kbps, average-rate > burst-threshold -> Burst not allowed -> Actual-rate=2Mbps (1Mb per 0,5sek)
7,0 second - average-rate=(0+0+2+2+2+2+2+2+1+1+1+1+1+1+1+1)/8=2500Kbps, average-rate > burst-threshold -> Burst not allowed -> Actual-rate=2Mbps (1Mb per 0,5sek)
7,5 second - average-rate=(0+2+2+2+2+2+2+1+1+1+1+1+1+1+1+1)/8=2625Kbps, average-rate > burst-threshold -> Burst not allowed -> Actual-rate=2Mbps (1Mb per 0,5sek)
8,0 second - average-rate=(2+2+2+2+2+2+1+1+1+1+1+1+1+1+1+1)/8=2750Kbps, average-rate > burst-threshold -> Burst not allowed -> Actual-rate=2Mbps (1Mb per 0,5sek)
8,5 second - average-rate=(2+2+2+2+2+1+1+1+1+1+1+1+1+1+1+1)/8=2625Kbps, average-rate > burst-threshold -> Burst not allowed -> Actual-rate=2Mbps (1Mb per 0,5sek)
9,0 second - average-rate=(2+2+2+2+1+1+1+1+1+1+1+1+1+1+1+1)/8=2500Kbps, average-rate > burst-threshold -> Burst not allowed -> Actual-rate=2Mbps (1Mb per 0,5sek)
9,5 second - average-rate=(2+2+2+1+1+1+1+1+1+1+1+1+1+1+1+1)/8=2375Kbps, average-rate > burst-threshold -> Burst not allowed -> Actual-rate=2Mbps (1Mb per 0,5sek)
10,0 second - average-rate=(2+2+1+1+1+1+1+1+1+1+1+1+1+1+1+1)/8=2250Kbps, average-rate > burst-threshold -> Burst not allowed -> Actual-rate=2Mbps (1Mb per 0,5sek)
10,5 second - average-rate=(2+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1)/8=2125Kbps, average-rate > burst-threshold -> Burst not allowed -> Actual-rate=2Mbps (1Mb per 0,5sek)
11,0 second - average-rate=(1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1)/8=2000Kbps, average-rate > burst-threshold -> Burst not allowed -> Actual-rate=2Mbps (1Mb per 0,5sek)

19,0 second - average-rate=(1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1)/8=2000Kbps, average-rate > burst-threshold -> Burst not allowed -> Actual-rate=0Mbps (0Mb per 0,5sek)
19,5 second - average-rate=(1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+0)/8=1875Kbps, average-rate > burst-threshold -> Burst not allowed -> Actual-rate=0Mbps (0Mb per 0,5sek)
20,0 second - average-rate=(1+1+1+1+1+1+1+1+1+1+1+1+1+1+0+0)/8=1750Kbps, average-rate > burst-threshold -> Burst not allowed -> Actual-rate=0Mbps (0Mb per 0,5sek)
20,5 second - average-rate=(1+1+1+1+1+1+1+1+1+1+1+1+1+0+0+0)/8=1625Kbps, average-rate > burst-threshold -> Burst not allowed -> Actual-rate=0Mbps (0Mb per 0,5sek)
21,0 second - average-rate=(1+1+1+1+1+1+1+1+1+1+1+1+1+0+0+0)/8=1625Kbps, average-rate > burst-threshold -> Burst not allowed -> Actual-rate=0Mbps (0Mb per 0,5sek)
21,5 second - average-rate=(1+1+1+1+1+1+1+1+1+1+1+1+0+0+0+0)/8=1500Kbps, average-rate > burst-threshold -> Burst not allowed -> Actual-rate=0Mbps (0Mb per 0,5sek)
22,0 second - average-rate=(1+1+1+1+1+1+1+1+1+1+1+0+0+0+0+0)/8=1375Kbps, average-rate < burst-threshold -> Burst is allowed -> Actual-rate=0Mbps (0Mb per 0,5sek)
22,5 second - average-rate=(1+1+1+1+1+1+1+1+1+1+0+0+0+0+0+0)/8=1250Kbps, average-rate < burst-threshold -> Burst is allowed -> Actual-rate=0Mbps (0Mb per 0,5sek)
23,0 second - average-rate=(1+1+1+1+1+1+1+1+1+0+0+0+0+0+0+0)/8=1125Kbps, average-rate < burst-threshold -> Burst is allowed -> Actual-rate=0Mbps (0Mb per 0,5sek)
23,5 second - average-rate=(1+1+1+1+1+1+1+1+0+0+0+0+0+0+0+0)/8=1000Kbps, average-rate < burst-threshold -> Burst is allowed -> Actual-rate=2Mbps (1Mb per 0,5sek)
24,0 second - average-rate=(1+1+1+1+1+1+1+0+0+0+0+0+0+0+0+1)/8=1000Kbps, average-rate < burst-threshold -> Burst is allowed -> Actual-rate=4Mbps (2Mb per 0,5sek)
24,5 second - average-rate=(1+1+1+1+1+1+0+0+0+0+0+0+0+0+1+2)/8=1125Kbps, average-rate < burst-threshold -> Burst is allowed -> Actual-rate=4Mbps (2Mb per 0,5sek)
25,0 second - average-rate=(1+1+1+1+1+0+0+0+0+0+0+0+0+1+2+2)/8=1250Kbps, average-rate < burst-threshold -> Burst is allowed -> Actual-rate=4Mbps (2Mb per 0,5sek)
25,5 second - average-rate=(1+1+1+1+0+0+0+0+0+0+0+0+1+2+2+2)/8=1375Kbps, average-rate < burst-threshold -> Burst is allowed -> Actual-rate=4Mbps (2Mb per 0,5sek)
26,0 second - average-rate=(1+1+1+0+0+0+0+0+0+0+1+2+2+2+2+2)/8=1500Kbps, average-rate = burst-threshold -> Burst not allowed -> Actual-rate=2Mbps (1Mb per 0,5sek)
26,5 second - average-rate=(1+1+0+0+0+0+0+0+0+1+2+2+2+2+2+1)/8=1500Kbps, average-rate = burst-threshold -> Burst not allowed -> Actual-rate=2Mbps (1Mb per 0,5sek)
27,0 second - average-rate=(1+0+0+0+0+0+0+0+1+2+2+2+2+2+1+1)/8=1500Kbps, average-rate = burst-threshold -> Burst not allowed -> Actual-rate=2Mbps (1Mb per 0,5sek)
27,5 second - average-rate=(0+0+0+0+0+0+0+1+2+2+2+2+2+1+1+1)/8=1500Kbps, average-rate = burst-threshold -> Burst not allowed -> Actual-rate=2Mbps (1Mb per 0,5sek)
28,0 second - average-rate=(0+0+0+0+0+0+1+2+2+2+2+2+1+1+1+1)/8=1625Kbps, average-rate > burst-threshold -> Burst not allowed -> Actual-rate=2Mbps (1Mb per 0,5sek)
28,5 second - average-rate=(0+0+0+0+0+1+2+2+2+2+2+1+1+1+1+1)/8=1750Kbps, average-rate > burst-threshold -> Burst not allowed -> Actual-rate=2Mbps (1Mb per 0,5sek)
29,0 second - average-rate=(0+0+0+0+1+2+2+2+2+2+1+1+1+1+1+1)/8=1875Kbps, average-rate > burst-threshold -> Burst not allowed -> Actual-rate=2Mbps (1Mb per 0,5sek)
29,5 second - average-rate=(0+0+0+1+2+2+2+2+2+1+1+1+1+1+1+1)/8=2000Kbps, average-rate > burst-threshold -> Burst not allowed -> Actual-rate=2Mbps (1Mb per 0,5sek)
30,0 second - average-rate=(0+0+1+2+2+2+2+2+1+1+1+1+1+1+1+1)/8=2125Kbps, average-rate > burst-threshold -> Burst not allowed -> Actual-rate=2Mbps (1Mb per 0,5sek)
30,5 second - average-rate=(0+1+2+2+2+2+2+1+1+1+1+1+1+1+1+1)/8=2250Kbps, average-rate > burst-threshold -> Burst not allowed -> Actual-rate=2Mbps (1Mb per 0,5sek)
31,0 second - average-rate=(1+2+2+2+2+2+1+1+1+1+1+1+1+1+1+1)/8=2375Kbps, average-rate > burst-threshold -> Burst not allowed -> Actual-rate=2Mbps (1Mb per 0,5sek)


Burst time.8.part1.JPG Burst time.8.part2.JPG


Example Burst-time=16s

Burst time.16.part1.JPG Burst time.16.part2.JPG