H3C Technologies H3C S5130 Series Switches - Manual (Page 31)

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Identifying physical IRF ports on the member switches
Identify the physical IRF ports on the member switches according to your topology and connection
scheme.
Planning the cabling scheme
Use SFP+ DAC cables or SFP+ transceiver modules and fibers to connect the IRF member switches. If the
IRF member switches are far away from one another, choose the SFP+ transceiver modules with optical
fibers. If the IRF member switches are all in one equipment room, choose SFP+ DAC cables.
H3C recommends that you use ring topology to connect the switches. The following describes cabling
schemes in ring topology.
Connecting the IRF member switches in one rack
Use SFP+ DAC cables to connect the IRF member switches (9 switches in this example) in a rack as shown
in Figure 30 . The switches in the ring topology (see Figure 31 ) are in the same order as connected in the
rack.