30
NOTE:
IRF member switches will automatically elect a master. You can affect the election result by assigning a
high member priority to the intended master switch. For more information about master election, see
HP
FlexFabric 5930 Switch Series IRF Configuration Guide
.
Prepare an IRF member ID assignment scheme. An IRF fabric uses member IDs to uniquely identify and
manage its members, and you must assign each IRF member switch a unique member ID.
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 HP FlexFabric 5930-/HP FlexFabric 5930- TAA switch can provide 40-GE IRF
connections through QSFP+ ports. You can bind several QSFP+ ports to an IRF port for increased
bandwidth and availability.
NOTE:
•
Figure 33
and
Figure 34
show the topologies of an IRF fabric made up of three HP FlexFabric
5930-/HP FlexFabric 5930- TAA switches that use QSFP+ ports for IRF connections.
•
The IRF port connections in the two figures are for illustration only, and more connection methods are
available.
Figure 33
IRF fabric in daisy chain topology
IRF-port1
IRF-port2
IRF-port1
IRF-port2
1
2
3
1
2
3
