McDATA 316095-B21 - StorageWorks Edge Switch 2/24 Installation And Service Manual page 460

Event Code Tables
B
Event Code: 142
Message:
Severity:
Explanation:
Action:
Event Data:
Distribution:
Event Code: 143
Message:
Severity:
Explanation:
Action:
Event Data:
Distribution:
McDATA® Sphereon 3032 and 3232 Installation and Service Manual
B-16
.
Low BB Credit has been detected on an ISL
Informational
Open Trunking firmware has detected a transmit ISL that has no credits for data transmission for a portion of time
greater than the low transmit BB Credit threshold. This is an indication of congestion in the fabric downstream
from the exit port.
Review the fabric topology using McDATA's switch topology guidelines - This condition may be corrected by
adding parallel ISLs, increasing the link speed of he ISL, or by moving devices to different locations in the fabric.
If this condition is brief and rare, or if the reporting ISL has nearly 100% throughput, this condition can be ignored.
Byte 0: Number of the port on which the low BB credit condition was detected.
Byte 1 - 3: Reserved
Switch
Nonvolatile System
System Error
Event Log Indicator
End of a low BB Credit condition has been detected on an ISL
Informational
Open Trunking firmware has detected that the low BB credit condition on an ISL has been relieved. Credits
allowing data transmission are now available for a greater portion of the time.
A rare, brief episode of low BB credit can sometimes be ignored, but if a low BB credit condition is common or
long-lasting without a very high loading on the reporting ISL, the condition should be handled as described in
Event Code 142.
Byte 0: Number of the port that no longer has a low BB credit condition.
Byte 1 - 3: Reserved
Switch
Nonvolatile System
System Error
Event Log Indicator
EFC Server
Event Log E-Mail
EFC Server
Event Log E-Mail
Host
Call-Home Sense Info
Host
Call-Home Sense Info
Link Incident
Link Incident