Procedure
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.
Figure 29: IRF fabric in daisy chain topology on page 38 and Figure 30: IRF fabric in ring topology on page 38 show the
daisy chain topology and ring topology, respectively. The physical port connections in these figures are for illustration only,
and more connection methods are available.
Identifying physical IRF ports on the member switches
You can bind several ports of the same type to an IRF port for increased bandwidth and availability.
1/10-GE ports and SFP+ ports are grouped as follows. When a 1/10-GE port or SFP+ port is bound to an IRF port, the other
ports in the same group will not be used as a service port, and vice versa.
• On the HPE 5920AF-24XG, 5920AF-24XG TAA, 5900CP-48XG-4QSFP+, 5900CP-48XG-4QSFP+ TAA,
5900CP-48XG-4QSFP+8Gb FC B-F, 5900AF-48XG-4QSFP+, and 5900AF-48XG-4QSFP+ TAA switches, the SFP+ ports
are grouped by port number in ascending order, starting from one. Every four SFP+ ports form one group.
• On the HPE 5900AF-48G-4XG-2QSFP+ and 5900AF-48G-4XG-2QSFP+ TAA switches, SFP+ ports numbered 49, 50, 51,
and 52 form one group.
• On the HPE 5900AF-48XGT-4QSFP+ and 5900AF-48XGT-4QSFP+ TAA switches, the 1/10-GE ports are grouped by port
number in ascending order, starting from one. Every four 1/10-GE ports form one group.
A common practice is to use one 1/10-GE port or SFP+ port group for IRF connections, and bind every two 1/10-GE port or
SFP+ ports in the group to an IRF port for increased bandwidth and availability.
Procedure
1. Identify the SFP+ or QSFP+ ports to be used for IRF connections on the member switches according to your topology and
connection scheme.
Table 5: Physical ports available for IRF connections on page 40describes the physical ports
available for establishing IRF connections.
Setting up an IRF fabric
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