How to Enable Port Mirroring on Your 10G Managed Switch.

Please refer to the video tutorial below:

https://www.youtube.com/watch?v=qskwwBI8DR4

Port mirroring is a technique used to replicate data traffic over a specific port. This is achieved by duplicating the data traffic from a source port, with the mirrored data being sent to another port. This is useful when troubleshooting a device when we do not have access to the switch log. It provides a direct view of the traffic between the device and the switch, allowing for in-depth analysis in situations where error messages are insufficient.

To enable port mirroring, we can access the command line interface via PuTTY and issue the following commands:

configure terminal

monitor session 1 source interface 10GigabitEthernet 1/2

monitor session 1 destination interface 10GigabitEthernet 1/1

monitor session 1

Laptop 1 will now be dedicated to receiving mirrored traffic from the source port (10GigabitEthernet 1/2) and will lose access to the switch for regular traffic. The data traffic can be monitored via a packet tracing software such as Wireshark.

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