In order to identify OSI layer 2 reachability issues, an L2 algorithm is used to ping the MAC addresses of the other ports in the cluster that belong to the same broadcast domain. The L2 ping is perfo...In order to identify OSI layer 2 reachability issues, an L2 algorithm is used to ping the MAC addresses of the other ports in the cluster that belong to the same broadcast domain. The L2 ping is performed by sending Connectivity Fault Management (CFM) frames A port considers itself 'healthy' if it receives a CFM frame from any other port in its configured broadcast domain A port considers itself 'degraded' if it is receives no CFM frames from its configured broadcast domain
Applies to ONTAP 9.8 and later Auto Port Placement Storm Control Issue A high amount of broadcast traffic is observed after ONTAP upgrade to version 9.8. Switch reports the warning STORM_CONTROL_ABOVE...Applies to ONTAP 9.8 and later Auto Port Placement Storm Control Issue A high amount of broadcast traffic is observed after ONTAP upgrade to version 9.8. Switch reports the warning STORM_CONTROL_ABOVE_THRESHOLD (The warning may vary depending on the switch vendor). The rate of broadcast traffic generated causes problems in part of the network leading to loss of data access. Storm Control on the network device can disable ports where ONTAP is connected because of high broadcasts.
