Cisco N5K-C5010P-BF Troubleshooting Guide - Page 102
fcdomain domain, static, preferred, fcdomain restart vsan, show fcdomain domain-list
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Page 102 highlights
FC Services Chapter 5 Troubleshooting SAN Switching Issues Send document comments to [email protected]. Step 3 Step 4 Use the fcdomain domain [static | preferred] vsan command to change the domain ID for one of the overlapping domain IDs. • The static option tells the switch to request that particular domain ID. If it does not obtain that particular address, it will isolate itself from the fabric. • The preferred option has the switch request a specified domain ID. If that ID is unavailable, it will accept another ID. Use the fcdomain restart vsan command to restart Domain Manager. While the static option can be applied to runtime after a disruptive or nondisruptive restart, the preferred option is applied to runtime only after a disruptive restart. Note A domain ID restart is disruptive. The Fibre Channel nodes that are logged into that domain will be logged out and logged back in. A disruptive reconfiguration might affect data traffic. To assign a dynamic domain ID after a fabric reconfiguration You can use fabric reconfiguration to reassign domain IDs and resolve any overlapping domain IDs. If you enable the auto-reconfigure option on both switches before connecting the fabric, a disruptive reconfiguration (RCF) occurs. The RCF functionality automatically forces a new principal switch selection and causes new domain IDs to be assigned to the different switches. To use fabric reconfiguration to reassign domain IDs for a particular VSAN using the NX-OS CLI, perform the following these steps: Step 1 Step 2 Step 3 Use the show fcdomain domain-list command to determine if you have statically assigned domain IDs on the switches. If you have statically assigned domain IDs, use the no fcdomain domain command to remove the static assignments. Use the show fcdomain vsan command to determine if you have the RCF reject option enabled. Example: switch# show fcdomain vsan 3 The local switch is the Principal Switch. Local switch run time information: State: Stable Local switch WWN: 20:03:00:0d:ec:d5:fe:01 Running fabric name: 20:03:00:0d:ec:d5:fe:01 Running priority: 128 Current domain ID: 0x2c(44) Local switch configuration information: State: Enabled FCID persistence: Enabled Auto-reconfiguration: Disabled Contiguous-allocation: Disabled Configured fabric name: 20:01:00:05:30:00:28:df Optimize Mode: Disabled Configured priority: 128 Configured domain ID: 0x2c(44) (preferred) 5-30 Cisco Nexus 5000 Series Troubleshooting Guide OL-25300-01
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