33NOTE:IRF member switches will automatically elect a master. You can affect the election result by assigning ahigh member priority to the intended master switch. For more information about master election, seeH3CS7500E-XS Switch Series IRF Configuration Guide.Prepare an IRF member ID assignment scheme. An IRF fabric uses member IDs to uniquely identify andmanage its members, and you must assign each IRF member switch a unique member ID.Planning IRF topology and connectionsYou can create an IRF fabric in daisy chain topology, or more reliably, ring topology. In ring topology,the failure of one IRF link does not cause the IRF fabric to split as in daisy chain topology. Rather, the IRFfabric changes to a daisy chain topology without interrupting network services.You connect the IRF member switches through IRF ports, the logical interfaces for the connectionsbetween IRF member switches. Each IRF member switch has two IRF ports: IRF-port 1 and IRF-port 2. Touse an IRF port, you must bind at least one physical port to it.When connecting two neighboring IRF member switches, you must connect the physical ports of IRF-port1 on one switch to the physical ports of IRF-port 2 on the other switch.The IRF port connections in the two figures are for illustration only, and more connection methods areavailable.Figure 42 IRF fabric in daisy chain topology
