Technical data

Fabric OS Administrator’s Guide 10-9
Publication Number: 53-0000518-09
Restoring a Segmented Fabric
10
• Disable device probing
• Suppress class F traffic
• Per-frame route priority
• Long distance fabric (not necessary on Bloom-based fabrics)
• BB credit
• PID format
To reconcile fabric parameters individually
1. Log in to one of the segmented switches as admin (switch A).
2. Enter the configShow command.
3. Log in to another switch (switch B) in the same fabric as admin.
4. Enter the configShow command.
5. Compare the two switch configurations line by line and look for differences. Do this by comparing
the two telnet windows or by printing the configShow output. Also verify that the fabric parameter
settings (see page 10-8) are the same for both switches.
6. Connect to the segmented switch after the discrepancy is identified.
7. Disable the switch by entering the switchDisable command.
8. Enter the configure command to edit the fabric parameters for the segmented switch.
Refer to the Fabric OS Command Reference Manual for more detailed information.
9. Enable the switch by entering the switchEnable command.
Alternatively, you can reconcile fabric parameters by entering the configUpload command for each
switch.
To download a correct configuration
You can restore a segmented fabric by downloading a previously saved correct backup configuration to
the switch. Downloading in this manner reconciles any discrepancy in the fabric parameters and allows
the segmented switch to rejoin the main fabric. For details on uploading and downloading
configurations, refer to “Maintaining Configurations” on page 4-1.
To reconcile a domain ID conflict
If a domain ID conflict appears, the conflict is only reported at the point where the two fabrics are
physically connected. However, there might be several conflicting domain IDs, which will appear as
soon as the initial conflict is resolved.
Typically, the fabric automatically resolves domain conflicts during fabric merges or builds unless
Insistent Domain ID (IDID) is configured. If IDID is enabled, switches that cannot be programmed with
a unique domain ID are segmented out. Check each switch that has IDID configured and make sure
their domain IDs are unique within the configuration.
Repeat this procedure until all domain ID conflicts are resolved:
1. Enter the fabricShow command on a switch from one of the fabrics.
2. In a separate telnet window, enter the fabricShow command on a switch from the second fabric.