Release Notes

Fabric OS v7.3.0c Release Notes v1.0 Page 50 of 52
are long distance port configurations that have used up all the credits prior to applying this fix,
some long distance ports may experience degraded performance.
• Firmware downgrade from FOS v7.3.0 will be blocked when any logical switch is configured
with in-flight encryption with FCAP protocol or SHA-256 hashing algorithm is used with FCAP or
DH-CHAP protocol. These configurations must be removed from all logical switches for
downgrade.
• The Location ID parameter under the configure CLI affects routing calculations, and should
remain set to the default value of 0 for normal use. Do not change the value unless explicitly
instructed to do so by a Brocade Support engineer.
• Fabric OS Command Reference contains an error for the command creditRecovMode. The
creditRecovMode --fe_crdloss configures time-out based credit loss detection of Condor-2
front-end ISL links. However, this feature is NOT enabled by default.
• Support for the 16G 2km ICL QSFP optics has the following notes:
o The maximum number of ICL ports with the 2km ICL QSFP can be supported in
an 8510 backbone switch with the two kilometer distance is 10, which requires
16 credits configured per Virtual Channel.
o Before the ICL ports with the 2km ICL QSFP come online, switchShow CLI
command may display the port states as in-sync or shifting in and out of port
fault.
o The sfpShow CLI command displays the 16G 2km ICL QSFP incorrectly as
“Length Cu: 3 (units m)” instead of the correct value 0.
o Firmware downgrade from FOS v7.3.0c to a prior version is blocked if ICL ports
with 2km ICL QSFP optics are present in the switch.
Defects
Closed with Code Change in Fabric OS v7.3.0c
This section lists the defects with Critical, High and Medium Technical Severity closed with a code change as of
October 28, 2014 in Fabric OS v7.3.0c
Defect ID:
DEFECT000524910
Technical Severity:
High
Probability:
Medium
Product:
FOS
Technology:
Monitoring/RAS
Reported In Release:
FOS7.3.0
Technology Area:
Equipment Status
Symptom:
Switch reports fan direction incorrectly.
Condition:
This only applies to BR6505 and BR6510. It shows "Forward" direction of the fans even though the
actual flow is the correct Reverse or port-side exhaust air flow.
Defect ID:
DEFECT000528245
Technical Severity:
High
Probability:
Medium
Product:
FOS
Technology:
Traffic Management
Reported In Release:
FOS7.2.0
Technology Area:
Port bring up
Symptom:
Switch may start logging SCN-1001 events for SCN queue overflow for process nsd, and MQ-1005
messages for nsd queue full. This may eventually result in CP panic.
Condition:
This may be seen in an environment with port devices that neither cut off light nor come on line.
Consequnetly CPU gets overloaded with excessive interrupts and cannot schedule time for other user
space daemons.