Cisco Nexus 5000 Series and Cisco Nexus 2000 Series Release Notes, for Cisco NX-OS Release 5.0(2)N1(1) and NX-OS Release 5.0(2)N2(1) OL-22747-02, December 2010)

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Cisco Nexus 5000 Series and Cisco Nexus 2000 Series Release Notes, for Cisco NX-OS Release 5.0(2)N1(1) and NX-OS Release 5.0(2)N2(1)
OL-22747-02
Caveats
Workaround: Perform shut and no shut on the error disabled interfaces.
• CSCsx59489
Symptom: Call home notifications for events generated when both a switch and a Fabric Extender
are rebooting may contain a timestamp of January 1 1970 as shown in the following example:
System Notification from sample-system - environment:minor - 1970-01-01 00:00:00
GMT+0000
The most likely scenario where this would occur is after a power failure or after issuing the reload
all command. The event is generated before the Fabric Extender connects with the switch and before
the local time is updated for the Fabric Extender.
Workaround: None.
• CSCsx80279
Symptom: When traffic is sent at line rate as a single burst, all addresses are not learned when egress
interfaces are FEX facing ports. This problem does not occur if sustained traffic is sent for more than
0.4 seconds.
Workaround: Resending the unlearned MAC addresses would render them relearned.
• CSCsy99816
Symptom: When a Cisco Nexus 2000 Fabric Extender is already online and a fabric interface that
is not part of a port channel is configured with a serial number that does not match that of the FEX,
the fabric interface is brought down, and show interface fex does not display the reason for being
down.
Workaround: None. This is a display issue.
• CSCsy02439
Symptom: Under some circumstances, the FC MAC driver displays the following error message:
%KERN-3-SYSTEM_MSG: FCP_ERRFCP_PORT: gat_fcp_isr_ip_fcmac_sync_intr@424, jiffies =
0x1c422:Unknown intr src_id 41 - kernel
The error message is when an unused interrupt in the MAC fires. The error message does not
indicate any functional problem.
Workaround: None
• CSCsx68778
Symptom: You cannot configure commands under the interface range
Workaround: Configure command sunder HIF ports of one FEX at a time.
• CSCsx40562
Symptom: ACL drop traffic with 802.1p cos values greater than 3 may not get spanned if all four
user qos classes are not configured in system qos service-policy configuration.e
Workaround: Configure all four user qos classes (except class-default and class-fcoe) under
system qos service-policy to span all ACL drop traffic.
• CSCsv93263
Symptom: Cisco NX-OS does not provide offline configuration support. The creation of a FEX
interface depends on the FEX coming online after a fabric interface configuration. When you restore
configuration from a file, there period when FEX interfaces are not yet created but interface
configuration is applied and fails. (See also CSCsw21301)