Resolved Caveats-Cisco Nx-Os Release 4.0(0)N1(2) - Cisco AJ732A - MDS 9134 Fabric Switch Release Note

Caveats
S e n d d o c u m e n t a t i o n c o m m e n t s t o n e x u s 5 k d o c s @ c i s c o . c o m
Resolved Caveats—Cisco NX-OS Release 4.0(0)N1(2)
This section lists the resolved caveats for this release.
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Cisco Nexus 5000 Series Release Notes, Release 4.0(1a)N1(1a)
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The syslog displays warnings at bootup. Although the hardware supports the 110 V input, the
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operating system incorrectly logs the warning message.
• The show environment power command incorrectly displays the available power as a negative
value.
Workaround: The problem is not significant and the system operates normally with 110 V power
supply input. There is no workaround to avoid the syslog message.
CSCsq61505
Symptom: Problems are encountered while upgrading to Release 4.0(0)N1(2) from Releases
4.0(0)N1(1) or 4.0(0)N1(1a).
Workaround: None.
CSCsq67305
Symptom: When the switch is operating in theN-port virtualization (NPV) mode, traffic may be
disrupted on active Fibre Channel links if you enter the shutdown or no shutdown command on any
of the NP mode uplink interfaces. The disruption also occurs if you change the interface mode of a
port from F to NP or from NP to F. Traffic is disrupted for all F mode ports in the same VSAN as
the NP-mode port.
Workaround: Change only the interface state or interface mode on NP mode Fibre Channel
interfaces during a maintenance window.
CSCso56749
Symptom: The current software does not have the ability to tag supervisor sourced frames
separately depending on control or data. The frame always goes out with CoS 0.
Workaround: None.
CSCso91286
Binding information specified in the Access Control System (ACS) is ignored when the Terminal
Access Controller Access Control Plus (TACACS+) authentication is used to authenticate the AAA
user using ACS.
Symptom: When TACACS+ authentication is used to authenticate the AAA user using ACS, the
Nexus 5000 Series switch ignores the user-to-role binding information specified in the ACS. You
are logged in with the default role of network-operator (for new users) and network-admin.
Workaround: Configure the user-to-role binding locally on the Nexus 5000 Series switch for the
role binding to take effect.
CSCsq23027
Symptom: Occasional Phy loopback failure is reported in power-on self-test (POST) routines. This
is a sporadic issue with front port POST routines. Occasionally, when the system comes up, ports
fail the loopback test.
Workaround: Reload the switch to confirm that it is a hardware defect.
OL-16601-01