47Figure 58 IRF fabric in ring topologyIdentifying physical IRF ports on the member switchesIdentify the physical IRF ports on the member switches according to your topology and connectionscheme.Table 7 shows the physical ports that can be used for IRF connection and the port use restrictions.Table 7 Physical IRF port requirementsChassis Candidate physical IRF ports Requirements• S5560-30S-EI• S5560-54S-EI• Four fixed SFP+ ports on the frontpanel• Two fixed QSFP+ ports on the rearpanel• All physical ports to be bound to anIRF port must have the same datarate.• For the S5560-54QS-EI, SFP+ ports49 to 52 form a group. When anSFP+ port is bound to an IRF port,other SFP+ ports in the same portgroup cannot be used as serviceports, and vice versa. Each QSFP+port is a group.• For other models, physical ports ondifferent interface cards can bebound to the same IRF port.• If a QSFP+ port is split into fourvirtual SFP+ ports, the QSFP+ portcannot be used as a physical IRFport.S5560-54QS-EI Four fixed SFP+ ports and two fixedQSFP+ ports on the front panel• S5560-30F-EI• S5560-30C-EI• S5560-34C-EI• S5560-54C-EI• S5560-30C-PWR-EI• S5560-54C-PWR-EI• Four fixed SFP+ ports on the frontpanel• 1/10 GE Ethernet ports on theinterface card on the rear panelPlanning the cabling schemeUse twisted pair cables, SFP+/QSFP+ cables, or SFP+/QSFP+ transceiver modules and fibers toconnect the IRF member switches. If the IRF member switches are far away from one another, choose
