How to monitor a Cisco 3750G on PRTG without netflow ?

Modified on 2025-06-10 21:28:02 +0200

Hello,

I have a core switch with 2 Cisco 3750G that doesn't support Netflow, which is the best way to configure PRTG in order to monitoring Bandwidth, CPU usage, memory, network performance etc.

thanks

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The lack of Netflow shouldn't be a problem, there's still a lot of stuff you can monitor since this model supports SNMP. You can employ at least the following sensors:

Ping Sensor, to check whenever the device is reachable/accessible.
SNMP System Uptime Sensor, to confirm that the device wasn't unexpectedly rebooted.
SNMP Cisco System Health Sensor, to monitor various general metrics, memory, temperatures, etc.
SNMP Traffic Sensor, to check for bandwidth and to get alerted regarding the status of interface (disconnected, disabled)
SNMP RMON Sensor, for detailed packed-related statistics

And if that's not sufficient, you can always resort to custom sensors or MIB files from the vendor:

Best Regards,
Luciano Lingnau [Paessler Support]

May, 2017 - Permalink

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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.

How to monitor a Cisco 3750G on PRTG without netflow ?

Article CommentsAttention: This article is a record of a conversation with the Paessler support team. The information in this conversation is not updated to preserve the historical record. As a result, some of the information or recommendations in this conversation might be out of date.

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Attention: This article is a record of a conversation with the Paessler support team. The information in this conversation is not updated to preserve the historical record. As a result, some of the information or recommendations in this conversation might be out of date.