EtsysIfOperStatusCauses
This convention specifies the variety of functionalities that may cause an interface's ifOperStatus to be have a value other than up(1). A set bit indicates that the associated cause is influencing the interface's current ifOperStatus. adminStatus(0) - The ifAdminStatus for the interface is not up(1). linkLoss(1) - The interface has physically lost link with its partner. linkFlap(2) - The interface has been brought down by the Link Flap feature as defined by etsysLinkFlapMIB. self(3) - The interface has brought itself down. initialization(4) - The system or interface is still in the process of initializing itself. flowLimiting(5) - The interface has been brought down by the Flow Limiting feature as defined by etsysFlowLimitingMIB. policy(6) - The interface has been brought down by the Policy feature as defined by etsysPolicyProfileMIB. classOfService(7) - The interface has been brought down by the rate limiting feature defined by etsysCosMIB. ieee8021x(8) - The interface has been made dormant awaiting successful authentication by 802.1X. ieee8023lag(9) - The interface has been made dormant as a result of being an underlying physical port in a Link Aggregation. enetOam(10) - The interface has been brought down by the Ethernet OAM feature as defined by etsysEthOamExtMIB. enetOamLb(11) - The interface has been brought down by the Ethernet OAM loopback feature as defined by dot3OamMIB. macLock(12) - The interface has been brought down by the MAC Lock feature as defined in etsysMACLockingMIB. chassisBonding(13) - The interface has been brought down by the Chassis Bonding feature as defined in etsysVirtualSwitchBondingMIB. linkState(14) - The interface has been brought down by the Link-state application as defined in etsysLinkstateMIB. enetOamUld(15) - The interface has been brought down by the Ethernet OAM Unidirectional Link Detection (ULD) feature as defined by etsysEthOamExtMIB. txqMonitor(16) - The interface has been brought down by the Transmit Queue Monitor feature as defined in etsysTxqMonitorMIB. priorityFlowControl(17) - The interface has been brought down by the Priority Flow Control feature as defined in ieee8021PFCMib as it undergoes temporary buffer changes. macSec(18) - The interface has been brought down by the MACsec feature as defined by IEEE802.1X-2010 port based Network Access Control.