HP 5120 SI Series Руководство по установке - Страница 25
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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. An IRF port is a logical interface for the
internal connection 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 physical ports 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.
You can bind several physical ports to an IRF port to create an aggregate IRF link for increased
bandwidth and availability.
NOTE:
Figure 23
The IRF port connections in these figures are for illustration only, and more connection methods
are available.
Figure 23 5120 SI IRF fabric in daisy chain topology
1
1
2
2
3
3
1
1
Figure 24 5120 SI IRF fabric in ring topology
1
1
2
2
3
3
IRF-port2
and
Figure 24
show the topologies of a 5120 24G SI IRF fabric.
IRF-port1
IRF-port2
2
2
IRF-port1
IRF-port2
IRF-port1
1
1
IRF-port2
IRF-port1
IRF-port1
IRF-port2
2
2
IRF-port1
IRF-port2
3
3
IRF-port2
IRF-port1
IRF-port1
IRF-port2
3
3
21