mac-address-table station-move thresholdSpecify the threshold and time interval for the maximum number of station moves on PE ports. When thenumber of station moves for a specified MAC address exceeds the configured threshold in the configuredtime, a loop is detected on PE ports. The loop is prevented by bringing down the line protocol on all activeports in the learned path, except for the port with the lowest interface index (ifIndex).C9000 SeriesSyntax [no] mac-address-table station-move threshold number intervalsecondsParameters threshold number Enter the keyword threshold with the maximum number oftimes a MAC-address station move is detected within theconfigured interval. The range is from 5 to 50.interval seconds Enter the keyword interval with the interval (in seconds). Therange is from 1 to 60.Defaults Not configured.Command Modes CONFIGURATIONCONFIGURATION TERMINAL BATCHCommand History The following is a list of the Dell Networking OS version history for this command.Version Description9.10(0.0) Introduced the Configuration Terminal Batch mode on C9010.9.9(0.0) Introduced on the C1048P.Usage Information As xSTP protocols are not supported on PEs, use this command to detect possibleloops on PE ports.Use this command in Configuration Terminal Batch mode to detect the possible loopsin a dual-homing setup.If a station move for a MAC address is detected above the configured threshold andwithin the specified time, a syslog message is triggered with the port information. Allports on which the station move was detected are shut down, except for the port withthe lowest interface index. Only the port with the lowest ifIndex remains active. Forexample:Jun 18 09:55:35: %RPM0-P:RP %MACMGR-1-PE LOOP DETECTION: Loopoccurred on PE interfaces:oldInterface: peGigE 0/2/47,newInterface: peGigE 0/1/20,vlanId: 3902, macAddr: 00:aa:00:00:00:Layer 2 1314
