Cisco Cisco MDS 9000 NX-OS Software Release 4.2 Release Notes

Page of 50
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   m d s f e e d b a c k - d o c @ c i s c o . c o m
39
Cisco MDS 9000 Family Release Notes for Cisco MDS NX-OS Release 4.2(7e)
OL-19964-12
  Limitations and Restrictions
A McData Switch Can Become Inaccessible After a Zone Set Deactivation
In a fabric with an MDS switch that is running Cisco NX-OS Release 4.2(7e) and a McData switch where 
there is an active IVR zone set and an active regular zone set, deactivating the zone set on the McData 
switch will cause the McData switch to become inaccessible and unreachable by ping. If this situation 
occurs, do one of the following:
Power cycle the McData switch.
Deactivate the regular zone set on the McData switch, but do not enter the show fabric nodes 
command followed by the show zoning command. After a brief delay, the switch becomes 
accessible.
Configuring a Persistent FCID in an IVR Configuration with Brocade Switches
The following information is relevant if you have a fabric that consists of Cisco MDS 9000 switches and 
Brocade switches, and the Cisco MDS switches are running either NX-OS Release 4.x or Release 5.x 
and Brocade is running FOS higher than 6.x. In an IVR configuration, when IVR NAT is enabled on a 
Cisco MDS 9000 switch, the device in the native VSAN should be configured with a persistent FCID. 
Assuming the FCID is 0xAABBCC, AA should be configured with the virtual IVR domain ID of the 
VSAN that contains the ISLs and BB should be configured in the following range:
1 through 64 if the Brocade switch is operating in native interop mode.
1 through 30 if the Brocade switch is operating in McData Fabric mode or McData Open Fabric 
Mode.
This configuration ensures that the devices connected to the Cisco MDS 9000 switch can be seen in the 
name server database on the Brocade switch.