Dell Command Line Reference Guide for the S4048–ON System


Port Monitoring

The port monitoring feature allows you to monitor network traffic by forwarding a copy of each incoming or outgoing packet from one port to another port.

Important Points to Remember

  • Port monitoring is supported on physical ports and logical interfaces, such as port channels and virtual local area networks (VLANs).
  • The monitoring (destination, “MG”) and monitored (source, “MD”) ports must be on the same switch.
  • In general, a monitoring port should have no ip address and no shutdown as the only configuration; Dell EMC Networking OS permits a limited set of commands for monitoring ports; display them using the ? command. A monitoring port also may not be a member of a VLAN.
  • A total of 4 MG may be configured in a single port-pipe.
  • MG and MD ports can be reside anywhere across a port-pipe.
  • The Dell EMC Networking OS supports multiple source ports to be monitored by a single destination port in one monitor session.
  • One monitor session can have only one MG port.
NOTE: The monitoring port should not be a part of any other configuration.

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