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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 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.
As a best practice to avoid loop topology, first complete IRF configuration and then connect the IRF
member switches.
The S5130-HI switches can provide 10-GE/20-GE IRF connections through 1/10 GE Ethernet
ports/SFP+ ports/QSFP+ ports, and you can bind several 1/10 GE Ethernet ports/SFP+
ports/QSFP+ ports to an IRF port for increased bandwidth and availability.
Figure 55
and
Figure 56
show the topologies of an IRF fabric made up of three S5130-30C-HI
switches. The IRF port connections in the two figures are for illustration only, and more connection
methods are available.
Figure 55 IRF fabric in daisy chain topology
Figure 56 IRF fabric in ring topology
Identifying physical IRF ports on the member switches
Identify the physical IRF ports on the member switches according to your topology and connection
scheme.
Table 7
shows the physical ports that can be used for IRF connection and the port use restrictions.
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