Cisco Nexus 5000 Series Switch CLI Software Configuration Guide, NX-OS 4.0(1a)N1 (OL-16597-01, January 2009)

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Cisco Nexus 5000 Series Switch CLI Software Configuration Guide
OL-16597-01
Chapter 43 Advanced Fibre Channel Features and Concepts
Switch Interoperability
Configuring Interop Mode 1
The interop mode1 in Cisco Nexus 5000 Series switches can be enabled disruptively or nondisruptively.
Note Brocade’s msplmgmtdeactivate command must explicitly be run prior to connecting from a Brocade
switch to either Cisco Nexus 5000 Series switches or to McData switches. This command uses Brocade
proprietary frames to exchange platform information, which Cisco Nexus 5000 Series switches or
McData switches do not understand. Rejecting these frames causes the common E ports to become
isolated.
To configure interop mode 1 in any switch in the Cisco Nexus 5000 Series, perform this task:
Step 1 Place the VSAN of the E ports that connect to the OEM switch in interoperability mode.
switch# configuration terminal
switch(config)# vsan database
switch(config-vsan-db)# vsan 1 interop 1
switch(config-vsan-db)# exit
switch(config)#
Step 2 Assign a domain ID in the range of 97 (0x61) through 127 (0x7F).
Note This is an limitation imposed by the McData switches.
switch(config)# fcdomain domain 100 preferred vsan 1
In Cisco Nexus 5000 Series switches, the default is to request an ID from the principal switch. If the
preferred option is used, Cisco Nexus 5000 Series switches request a specific ID, but still join the fabric
if the principal switch assigns a different ID. If the static option is used, the Cisco Nexus 5000 Series
switches do not join the fabric unless the principal switch agrees and assigns the requested ID.
Note When changing the domain ID, the FC IDs assigned to N ports also change.
Step 3 Change the Fibre Channel timers (if they have been changed from the system defaults).
Domain
reconfiguration
disruptive
This is a switch-wide impacting event. Brocade and McData require the entire
switch to be placed in offline mode and/or rebooted when changing domain
IDs.
Domain
reconfiguration
nondisruptive
This event is limited to the affected VSAN. Cisco Nexus 5000 Series switches
have the capability to restart only the domain manager process for the affected
VSAN and not the entire switch.
Name server Verify that all vendors have the correct values in their respective name server
database.
Table 43-2 Changes in Switch Operation When Interoperability Is Enabled (continued)
Switch Feature Changes if Interoperability Is Enabled