Dell VNX5600 Fibre Channel SAN Topologies TechBook - Page 183

Complex Fibre Channel SAN Topologies Configuration of nondefault settings on supported vendor switches ◆ Refer to the specific vendor interoperability caveats before setting up an interoperable environment. Use only the correct and supported version of switch firmware and Fabric Management software. The vendor-specific non-default settings that must be enabled on each of the supported vendor switches before introducing them into an interop environment follow: Configure a Brocade switch Telnet can be used to change the Domain ID or set the interop mode on a Brocade switch. These actions require disabling the switch; therefore, plan accordingly. Principal switch setting To configure a Brocade director switch in the core of a fabric as the principal switch, issue the fabricprincipal command on the switch CLI running FOS 4.x and higher. This setting becomes active on the next reboot, or after the build fabric (BF) event. Configure the Domain ID To set the preferred Domain ID: 1. Start a Telnet session. 2. Enter switchdisable to disable the switch. 3. Enter configure. 4. Answer yes to the Fabric parameters questions. 5. The first field, Domain, is the Domain ID, in the range 97 through 127, with these exceptions: • The lowest numbers are generally allocated to the Brocade M series switches if any, in the fabric. • Domain ID 104 (decimal 8) is reserved by HP. Starting with 97, allow one number for each Brocade M series switch. Then assign the next available number to the Brocade switch, and number the remaining Brocade switches in order (skipping 104). Accept all default values for the other parameters in this section, and answer No to all other sections until the switch enters the phase where it commits the new Domain ID to flash. Heterogeneous switch interoperability 183