Cisco IOS Feature for Identifying Slow Network Performance

B

The correct answer is B. Netflow.

NetFlow is a Cisco IOS feature that allows network administrators to gain insight into network traffic and identify the source and destination of that traffic. By analyzing NetFlow data, network administrators can pinpoint the applications that are using the most bandwidth and causing slow network performance.

NetFlow works by capturing and analyzing data from network traffic. The data includes information about the source and destination of the traffic, as well as the type of traffic and the amount of data being transmitted. NetFlow can be configured to monitor traffic on a per-port basis, allowing network administrators to see exactly which applications are using the most bandwidth.

To enable NetFlow on a Cisco IOS device, the following steps are required:

1. Configure the device to export NetFlow data.
2. Configure a NetFlow collector to receive and analyze the data.
3. Configure the device to send NetFlow data to the collector.

Once NetFlow is enabled, network administrators can use tools like Cisco Prime Infrastructure or third-party applications to analyze the data and identify the applications that are causing slow network performance. This information can then be used to make informed decisions about network configuration and resource allocation, improving overall network performance.

To summarize, NetFlow is a powerful tool for network administrators to pinpoint applications that are causing slow network performance. By capturing and analyzing data from network traffic, NetFlow allows administrators to see exactly which applications are using the most bandwidth and taking up network resources.