HP AM866A Brocade Troubleshooting and Diagnostics Guide v6.1.0 (53-1000853-01, - Page 46

Downloading a correct configuration, Reconciling a domain ID conflict, Fabric OS Command Reference

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3 Segmented fabrics See the Fabric OS Command Reference 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. Downloading 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, see Fabric OS Administrator's Guide. Reconciling 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 may be several conflicting domain IDs, which appears 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 the following 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. 3. Compare the fabricShow output from the two fabrics. Note the number of domain ID conflicts; there may be several duplicate domain IDs that must be changed. Determine which switches have domain overlap and change the domain IDs for each of those switches. 4. Choose the fabric on which to change the duplicate domain ID; connect to the conflicting switch in that fabric. 5. Enter the switchDisable command. 6. Enter the switchEnable command. This will enable the joining switch to obtain a new domain ID as part of the process of coming online. The fabric principal switch will allocate the next available domain ID to the new switch during this process. 7. Repeat step 4 through step 6 if additional switches have conflicting domain IDs. 32 Fabric OS Troubleshooting and Diagnostics Guide 53-1000853-01

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32
Fabric OS Troubleshooting and Diagnostics Guide
53-1000853-01
Segmented fabrics
3
See the
Fabric OS Command Reference
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.
Downloading 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, see
Fabric OS Administrator’s Guide
.
Reconciling 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 may be several conflicting domain IDs, which appears 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 the following 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.
3.
Compare the
fabricShow
output from the two fabrics. Note the number of domain ID conflicts;
there may be several duplicate domain IDs that must be changed. Determine which switches
have domain overlap and change the domain IDs for each of those switches.
4.
Choose the fabric on which to change the duplicate domain ID; connect to the conflicting
switch in that fabric.
5.
Enter the
switchDisable
command.
6.
Enter the
switchEnable
command.
This will enable the joining switch to obtain a new domain ID as part of the process of coming
online. The fabric principal switch will allocate the next available domain ID to the new switch
during this process.
7.
Repeat
step 4
through
step 6
if additional switches have conflicting domain IDs.