Dell Brocade G620 Brocade 8.0.1 Fabric OS Troubleshooting and Diagnostics Guid - Page 48
Reconciling fabric parameters individually, Downloading a correct configuration
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Connectivity TABLE 8 Segmented fabric scenarios (continued) Fabric Parameter LISL Data field size Sequence level switching Disable device probing Suppress class F traffic Per-frame route priority Long-distance fabric Virtual Channel parameters Segmented Not segmented (merged) Not segmented (merged) Segmented Not segmented (merged) Not segmented (merged) Not segmented (merged) XISL Segmented Segmented Not segmented (merged) Segmented Segmented Segmented Not segmented (merged) ISL (Fabric OS 7.3.0 or later) Segmented Segmented Not segmented (merged) Segmented Segmented Segmented Not segmented (merged) ISL (Fabric OS 7.1.0 or earlier) Segmented Segmented Segmented Segmented Segmented Segmented Segmented NOTE The long-distance fabric parameter is not needed to be identical on Brocade 6505, 6510, 6520, G620, DCX 8510 Backbones, and X6 Directors. Reconciling fabric parameters individually 1. Log in to one of the segmented switches as admin. 2. Enter the configShow -pattern "fabric.ops" command. 3. Log in to another switch in the same fabric as admin. 4. Enter the configShow -pattern "fabric.ops" 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 -pattern "fabric.ops" output. Also, verify that the fabric parameter settings (refer to the list of fabric parameters in Segmented fabrics on page 47) 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 appropriate fabric parameters for the segmented switch. 9. Enable the switch by entering the switchEnable command. Alternatively, you can reconcile fabric parameters by entering the configUpload command for each switch and upload a knowngood configuration file. If you do this option, the two switches must be the same model. 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, refer to the 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 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. Brocade Fabric OS Troubleshooting and Diagnostics Guide 48 53-1004126-01
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