What is this?

This knowledgebase contains questions and answers about PRTG Network Monitor and network monitoring in general.

Learn more

PRTG Network Monitor

Intuitive to Use. Easy to manage.
More than 500,000 users rely on Paessler PRTG every day. Find out how you can reduce cost, increase QoS and ease planning, as well.

Free Download

Top Tags


View all Tags

What is the interface number?

Votes:

0

Say I want to monitor 2 links using netflow on a device, Ethernet4/26 and Ethernet7/17, what are their interface numbers? I'd like to use the filtering tools in the sensor settings.

Assuming I can't use SNMP to retrieve the interface numbers, how do I know what they are? Is it:

  • Interface[4/26]
  • Interface[e4/26]
  • Interface[Ethernet4/26]
  • Interface[26]
  • ?

interface netflow-sensor number

Created on Jun 8, 2016 9:05:08 PM

Last change on Jun 9, 2016 5:59:02 AM by  Luciano Lingnau [Paessler]



3 Replies

Votes:

0

Hello Incen,
thank you for your post.

Only numerical values can be used within the interface[] filter, that would be for instance:

Interface[26]



Please refer to the following article which lists the two alternatives to find the interface numbers for flow traffic:



Best Regards,

Created on Jun 9, 2016 9:20:47 AM by  Luciano Lingnau [Paessler]

Last change on Jun 9, 2016 9:21:45 AM by  Luciano Lingnau [Paessler]



Votes:

0

What does it mean if the InboundInterface number and OutboundInterface number are both 0?

Created on Jun 9, 2016 6:00:54 PM



Votes:

0

That's not PRTG related but device-specific, other vendors are also 'suffer' with this, please review the articles below:

Created on Jun 10, 2016 11:46:32 AM by  Luciano Lingnau [Paessler]




Disclaimer: The information in the Paessler Knowledge Base comes without warranty of any kind. Use at your own risk. Before applying any instructions please exercise proper system administrator housekeeping. You must make sure that a proper backup of all your data is available.