Planning Irf Topology And Connections - H3C S6805 Series Installation Manual

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NOTE:

IRF member switches will automatically elect a master. You can affect the election result by

assigning a high member priority to the intended master switch. For more information about master

election, see IRF configuration in H3C S6805&S6850&S9850 Switch Series Virtual Technologies

Configuration Guide.

Prepare an IRF member ID assignment scheme. An IRF fabric uses member IDs to uniquely identify

and manage its members, and you must assign each IRF member switch a unique member ID.

Planning IRF topology and connections

You 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

IRF fabric changes to a daisy chain topology without interrupting network services.

You connect the IRF member switches through IRF ports, the logical interfaces for the connections

between IRF member switches. Each IRF member switch has two IRF ports: IRF-port 1 and IRF-port

2. To use 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-port 1 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

are available.

Figure4-2 IRF fabric in daisy chain topology

IRF-port1

IRF-port2

4-3

IRF-port2

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