Configuring Device Information 263Defining Port Mirroring SessionsPort mirroring monitors and mirrors network traffic by forwarding copies of incoming and outgoing packetsfrom one port to a monitoring port.Port mirroring is configured by selecting a specific port to copy all packets, and different ports from whichthe packets copied. Before configuring Port Mirroring, note the following:When a port is set to be a target port for a port-mirroring session, all normal operations on it are suspended.This includes Spanning Tree and LACP.Before configuring Port Mirroring, note the following:• Monitored port cannot operate faster than the monitoring port.• All the RX/TX packets should be monitored to the same port.The following restrictions apply to ports configured to be destination ports:• Ports cannot be configured as a source port.• Ports cannot be a LAG member.• IP interfaces are not configured on the port.• GVRP is not enabled on the port.• The port is not a VLAN member.• Only one destination port can be defined.The following restrictions apply to ports configured to be source ports:• Source Ports cannot be a LAG member.• Ports cannot be configured as a destination port.• All packets are transmitted tagged from the destination port.• Monitored all RX/TX packets to the same port.To open the Port Mirroring page, click Switch→ Ports→ Port Mirroring in the tree view.
