We use a number of LAG connections on our switches and I want to be able to track bandwidth use in real time of the LAG, not the individual ports that make up the LAG. I have checked our hardware vendors and they do not have a custom MIB to do SNMP Traffic of a LAG. Is there a way to combine two SNMP Traffic sensors into one so I can see the actual traffic?

Article Comments

Hello there,
thank your for your KB-Post.

Some devices will create an virtual interfaces for the LAG that shows up in the ifTable/ifXTable, which the default "SNMP Traffic Sensor" polls. If that does't work for you, you can use a different approach.

If you have two individual sensors for traffic, you can use the Sensor Factory sensor to aggregate the data from these two sensors into a 3rd sensor. Please have a look here:

The definition will look somewhat like this(with the corresponding sensor ids from your sensors) :

#1:Traffic Total
Channel(4063,-1)+Channel(4064,-1)
#2:Traffic IN
Channel(4063,0)+Channel(4064,0)
#3:Traffic OUT
Channel(4063,1)+Channel(4064,1)

Best Regards,
Luciano Lingnau [Paessler Support]


Jul, 2017 - Permalink