Installation guide
58
Cisco MDS 9000 Family Release Notes for Cisco MDS NX-OS Release 5.2(6)
OL-27554-01
Caveats
IVR_FCIP
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2. Back up the FCIP configuration and other applications from the running configuration on the
switch.
3. Disable the features in use by the license. This action is disruptive to any non-FCIP IVR traffic.
switch# no feature fcip
switch# no feature IVR
4. Copy the license files off the switch as follows:
switch# copy licenses bootflash:lic-backup.tar
switch# copy bootflash:lic-backup.tar tftp://xxx.xxx.xxx.xxx
5. Enter the clear license command to clear the license.
6. Reinstall the license files.
7. Enable FCIP and reconfigure the switch.
8. Enable IVR and reconfigure the switch.
• CSCuf31077
Symptom: Ports on the 24-port, 48-port, or 4/44-port 8-Gbps Fibre Channel switching modules go
into a suspended state and packets cannot egress or ingress on the port. This issue can occur on Cisco
MDS 9500 Series Directors and Cisco MDS 92221 switches when any of the following modules are
installed:
–
24-port 8-Gbps Fibre Channel switching module (DS-X9224-96K9)
–
48-port 8-Gbps Fibre Channel switching module (DS-X9248-96K9)
–
4/44-port Host Optimized 8-Gbps Fibre Channel switching module (DS-X9248-48K9)
Conditions: This issue occurs after a nondisruptive upgrade to Cisco NX-OS Release 5.2(6x) or
Release 5.2(8), and a link flap occurs on the ports.
Workaround: To work around this issue, do one of the following:
1. To temporarily recover a port in this state, enter the shut command followed by the no shut
command on the port. A port that is recovered in this way can fail again.
2. To permanently work around this issue, reload the affected 24-port, 48-port, or 4/44-port
8-Gbps Fibre Channel switching module. If the switch contains primarily these modules, then
reload the entire switch. Following the reload, the issue will not reoccur.
3. Downgrade or upgrade the Cisco NX-OS software to a release that is not affected by this bug.
If a port is in this suspended state at the time of the upgrade or downgrade, the upgrade or
downgrade does not automatically recover the port. Enter the shut command followed by the
no shut command on the port after the upgrade or downgrade is complete to recover the port.
Further Problem Description: The main indications of a port exhibiting this issue are the
following:
–
The interface is up, there is an F port, there are zero frames per second in and out, there are
output discards, and all B2B credits are remaining.
–
Logging onboard shows small numbers of OFFLINE and TIMEOUT drops that are
incrementing.
• CSCtq88900