Use the debug ethernet-controller addr command to see the alternate path-port on which the address is being learned. Recommended Actionĭetermine the real path (port) to the MAC address. In this message, is the interface, and is the number of addresses being learnt. However, if there is a port anywhere in the switched domain that is looped back to itself, addresses will jump back and forth between the real port and the port that is in the path to the looped back port.
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Occasionally, when a switched network reconfigures, due to either manual or STP reconfiguration, addresses learned on one port are relearned on a different port. Normally, MAC addresses are learned once on a port. RTD-1-ADDR_FLAP relearning addrs per min Explanation The status messages are accurate, and there is no cause for alarm. The RTD-1-ADDR_FLAP system status messages should not necessarily be considered errors, particularly on ports where there are APs attached.įor example, if there are APs attached to ports 3/4 and 3/5, and clients associated to those APs are roaming back and forth between the two APs, the MAC addresses of the clients are truly moving back and forth between those two switch ports. This action always generates this message. It is part of normal operation for a switch to re-learn the MAC address every time it is seen on a different port.
They are displayed for informational purposes only. These messages do not necessarily mean that there is a problem. If users move from one Access Point (AP) to another and the MAC address shows up on a different switch port, the error messages are displayed. This error message is only applicable on the Catalyst 2900XL and 3500XL switches. The RTD-1-ADDR_FLAP error message indicates that a MAC address is moving consistently between different ports. What does the RTD-1-ADDR_FLAP system message mean? Resolution