Verify any CRC errors under ifstat, troubleshoot the cable/SFP connected to the port if CRC errros are visible. If a single client is being reported in the EMS message, investigate the client. Otherwi...Verify any CRC errors under ifstat, troubleshoot the cable/SFP connected to the port if CRC errros are visible. If a single client is being reported in the EMS message, investigate the client. Otherwise, if no trend in clients, investigate devices between the client IP's and LIFs mentioned in the EMS message. Note: Collect simultaneous tcpdumps or packet traces from impacted port on storage, connected switch port and the client to confirm TCP bad checksums.