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McDATA Sphereon 4300 Fabric Switch Installation and Service Manual
Event Code Tables
Event Code: 142
Message: Low BB_Credit detected on an ISL.
Severity: Informational.
Explanation: OpenTrunking firmware detected an ISL with no transmission BB_Credit for a period of time that exceeded the
configured low BB_Credit threshold. This indicates downstream fabric congestion.
Action: No action is required for an isolated event or if the reporting ISL approaches 100% throughput. If this event
persists, relieve the low BB_Credit condition by adding parallel ISLs, increasing the ISL link speed, or moving
device connections to a less-congested region of the fabric.
Event Data: Byte 0 = Port number reporting low BB_Credit.
Distribution: Product Management Server Host
EFCM Basic
Event Log
System
Error LED
Event Log E-Mail Call-Home Sense Info Link Incident
Log
✔
Event Code: 143
Message: Low BB_Credit relieved on an ISL.
Severity: Informational.
Explanation: OpenTrunking firmware detected an ISL with no transmission BB_Credit for a period of time that previously
exceeded the configured low BB_Credit threshold. The low-credit condition is now relieved.
Action: No action required.
Event Data: Byte 0 = Port number reporting low BB_Credit relieved.
Distribution: Product Management Server Host
EFCM Basic
Event Log
System
Error LED
Event Log E-Mail Call-Home Sense Info Link Incident
Log
✔