NEC QX-S5500G Series Installation Manual page 65

Installation Guide
QX-S5500G Series Ethernet Switches
IRF-port 1 and IRF-port 2. To use an IRF port, you must bind a minimum of 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 QX-S5500G Series switches can provide 10-GE IRF connections through SFP+ ports
and 40-GE IRF connections through QSFP+ ports, and you can bind several SFP+/QSFP+
ports to an IRF port for increased bandwidth and availability.
Figure 5-2 and Figure 5-3 show the topologies of an IRF fabric made up of three
QX-S5524GT-4X1C switches. The IRF port connections in the two figures are for
illustration only, and more connection methods are available.
1
2
3
Figure 5-2 IRF fabric in daisy chain topology
IRF-port1
IRF-port2
1
5-4
IRF-port1
IRF-port2
2
5. Setting up an IRF fabric
3