The port-list is a list of monitor ports that transmit identical copies of mirrored packets. The loopback-port is an unused port that is required when you mirror to a port-list. The loopback-port is not available for switching user data traffic. Certain L2 control protocol packets, such as STP (Spanning Tree Protocol), LACP, and LLDP (Link Layer Discovery Protocol), cannot be mirrored with one-to-many mirroring. The remote IP address option allows you enable hardware mirroring of Ethernet frames to a specified remote IPv4 address, which can reside zero or more router hops away.
Note
When you change the mirroring configuration, the switch stops sending egress packets from the monitor port until the change is complete. The ingress mirroring traffic to the monitor port and regular traffic are not affected.
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