FW 07.00.00/HAFM SW 08.06.00 McDATA Intrepid 6064 Director Installation and Service Manual (620-000108-920, April 2005)

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Intrepid® 6064 Director Installation and Service Manual
Maintenance Analysis Procedures (MAPS)
No action is required for an isolated event. However, if this event
persists, perform one of the following:
• Relieve the congestion by adding parallel ISLs between the
directors or switches reporting the problem.
• Increase the ISL link speed between the directors or switches
reporting the problem (from 1 Gbps to 2 or 10 Gbps).
• Reroute Fibre Channel traffic by moving device connections to a
less-congested region of the fabric.
Did the corrective action solve the problem and relieve the reported
ISL congestion?
NO YES
↓ The ISL appears operational. Exit MAP.
Contact the next level of support. Exit MAP.
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A 142 event code occurs only if the optional OpenTrunking feature is
enabled. The event code indicates OpenTrunking firmware detected
an ISL with no transmission BB_Credit for a period of time that
exceeded the configured low BB_Credit threshold. This results in
downstream fabric congestion.
No action is required for an isolated event or if the reporting ISL
approaches 100% throughput. However, if this event persists, perform
one of the following:
• Relieve the congestion by adding parallel ISLs between the
directors or switches reporting the problem.
• Increase the ISL link speed between the directors or switches
reporting the problem (from 1 Gbps to 2 or 10 Gbps).
• Reroute Fibre Channel traffic by moving device connections to a
less-congested region of the fabric.
Did the corrective action solve the problem and relieve the reported
low BB_Credit condition?
NO YES
↓ The ISL appears operational. Exit MAP.
Contact the next level of support. Exit MAP.