Planning Irf Topology And Connections - H3C S5500-HI Switch Series Installation Manual

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, 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 at least 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 S5500-HI switches can provide 10-GE IRF connections through the SFP+ ports on the front panel and
the 10G interface card at the rear of the chassis, and you can bind several 10G ports to an IRF port for
increased bandwidth and availability.
NOTE:
• Figure 57
switches that have two 2-port 10 GE SFP+ interface cards for IRF connections.
The IRF port connections in the two figures are for illustration only, and more connection methods are
•
available.
For information about the physical ports available for IRF connections on different S5500-HI switches,
•
see Table
Figure 57 IRF fabric in daisy chain topology
and Figure 58 show the topologies for an IRF fabric made up of three S5500-34C-HI
6.
44