325
edits
Burst analysis on a Mirror or Packet Broker input: Difference between revisions
Burst analysis on a Mirror or Packet Broker input (view source)
Revision as of 15:46, 9 December 2020
, 9 December 2020no edit summary
Remco.derooy (talk | contribs) No edit summary |
|||
| Line 1: | Line 1: | ||
== Problem == | == Problem == | ||
The Allegro Network Multimeter is connected to a Mirror or Packet Broker port. By default, this makes it difficult to | The Allegro Network Multimeter is connected to a Mirror or Packet Broker port. By default, this makes it difficult to analyze a specific link for bursts since the packets are aggregated on the Mirror or Packet Broker port. | ||
Please note that this guide is based on the manual [[Burst analysis]] and on the use case guide [[Network Burst Analysis]]. | Please note that this guide is based on the manual [[Burst analysis]] and on the use case guide [[Network Burst Analysis]]. | ||
| Line 15: | Line 15: | ||
== MAC Burst Measurement == | == MAC Burst Measurement == | ||
To | To analyze a specific link, you can use the MAC burst analysis. This is shown in the second tab '''MACs''' in the burst analysis module. It allows you to set a specific receive and send bandwidth for a chosen MAC address. Up to five MAC addresses can be analyzed. If you have an uplink, simply use the Router´s MAC address here and then specify the maximum receive and send rate of the Router´s uplink. | ||
In this example, we configured maximum values of 250MBit/s for the downlink and 40MBit/s for the uplink for the Router MAC address. | In this example, we configured maximum values of 250MBit/s for the downlink and 40MBit/s for the uplink for the Router MAC address. | ||
| Line 21: | Line 21: | ||
[[File:Burst mac measurement.png|500px]] | [[File:Burst mac measurement.png|500px]] | ||
Please note that the burst analysis is done with 1 millisecond resolution by default. In our example, the Router is connected at 1GBit/s and it can receive more than the configured uplink bandwidth. This is shown in the display as a | Please note that the burst analysis is done with 1 millisecond resolution by default. In our example, the Router is connected at 1GBit/s and it can receive more than the configured uplink bandwidth. This is shown in the display as a utilization of ">> 100%" and indicates that a burst may not be able to be handled by this uplink. | ||
== Advantage for Mirror Port and Packet Brokers == | == Advantage for Mirror Port and Packet Brokers == | ||
The MAC burst detection can be used for a specific end device ( a file server,... ) or for the gateway of an uplink ( Router,... ). It allows to monitor links and end devices even in out-of-band installations. | The MAC burst detection can be used for a specific end device ( a file server,... ) or for the gateway of an uplink ( Router,... ). It allows to monitor links and end devices even in out-of-band installations. | ||