CISCO-SONET-MIB

The MIB module to describe SONET/SDH interfaces objects. This is an extension to the standard SONET MIB(RFC 2558).

Typedef Base type Abstract
CsApsLineFailureCode enumeration The Sonet APS line failure code - this is the failure encountered by the APS line. csApsChannelMismatch: Transmitted K1 byte and received K2 byte do not match. csApsProtectionByteFail: It could mean either K1 byte with invalid type of switch request bits was received, or, priority of received K1 byte is lower than the transmitted K1 byte. csApsFEProtectionFailure: Remote end error detected. csApsModeMismatch: APS architecture mode mismatch.
CsApsLineFailureStatus bits The indication of the APS line failure status with a bit map representing multiple failures. noApsLineFailure bit indicates current failure status. This bit should be set ONLY if no other bit is set. csApsChannelMismatchBit is set when the APS line is in csApsChannelMismatch. csApsProtectionByteFailBit is set when the APS line is in csApsProtectionByteFail failure code. csApsFEProtectionFailureBit is set when the APS line is in csApsFEProtectionFailure. csApsModeMismatchBit is set when the APS line is in csApsModeMismatch.
CsApsLineSwitchReason enumeration The reason why APS switch happened. When the working line on one end fails, its other end is told to do an APS switch. The following options in the increasing order of priority indicate what type of switch request it is. csApsRevertive : Switch back to working line after the Wait-to-Restore interval is over, and failures are cleared. It is the lowest priority. csApsManual : Manual switch causes APS switch unless a request of equal or higher priority is in effect. csApsSignalDefectLow : Switch happened because threshold for 'csApsSigFaultBER' was exceeded. csApsSignalDefectHigh : Same as above, but higher priority. csApsSignalFailureLow : Switch happened because threshold for 'csApsSigDegradeBER' was exceeded. csApsSignalFailureHigh : Same as above, but higher priority. csApsForceSwitch : Forced switch forces hardware to switch the active line even if the other line (could be working line or protection line) is in alarm. csApsLockOut : This is the highest priority switch. This will override all other requests. csApsNoSwitch : This is a state when no switch happens.

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