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Zone Conflict Occurs When NX120 Switch Modules Are Cascaded

Publication Date:  2015-06-25 Views:  55 Downloads:  0
Issue Description
Hardware configuration:
One E6000 blade and two NX120 switch modules

Software configuration:
FOS FW for NX120s is V6.2.2c3.

Symptom:

NX120s fail to cascade with BROCADE B5100s. Run the switchshow command on the NX120 CLI. The system displays "zone conflict" shown in the red box in Figure 1.

Figure 1 Segmented errors against cascading NX120s

Handling Process
1.  Run the licenseshow command to view the license for cascading NX120s, and check that the license has been added, as shown in Figure 2.

Figure 2 License for cascading NX120s



2.  Run the switchshow command to view the switch status, and find that the values of Domain ID and switchname for all switches are the same on the storage area network (SAN).

3.  Change the values of Domain ID and switchname for all switches based on the configuration plan, as shown in Figure 3.

Figure 3 SAN configuration plan



 NOTE:
The values of Domain ID and switchname for a switch cannot be the same on an SAN.

4.  Disable the zone configuration of BROCADE B5100, as shown in Figure 4.

Figure 4 Disabling the zone configuration of BROCADE B5100



5.  Reserve only the default zone configuration (XFMA_48_ZONE) of NX120s, as shown in Figure 5.

Figure 5 Reserving the default zone configuration of NX120s



6.  Check that NX120s are cascaded, as shown in Figure 6.

Figure 6 Checking the cascading condition for NX120s

Root Cause
The values of Domain ID and switchname for all switches are the same on an SAN, and the zone configuration is incorrect.

Solution
  1. Apply for a license for cascading NX120s, and add the license to NX120s.
  2. Change the values of Domain ID and switchname for all switches on an SAN based on the configuration plan.
  3. Enable the default zone configuration for NX120s, and disable the zone configuration for FC switches.
  4. After cascading NX120s, plan the zone configuration based on the actual SAN.

END