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Figure 44 IRF fabric in ring topology
1
2
3
Depending on the switch model, you can connect the physical ports between the switches as follows
for IRF connections:
•
Connect 10GBASE-T Ethernet ports or SFP+ ports to provide a 10-GE IRF physical
connection.
•
Connect QSFP+ ports to provide a 40-GE IRF physical connection.
•
Connect a QSFP+ port and four SFP+ ports by using a 40G QSFP+ to 4 × 10G SFP+ cable.
You can bind several ports to an IRF port for increased bandwidth and availability.
Identifying physical IRF ports on the member switches
Identify the 10GBASE-T Ethernet ports, SFP+ ports, and QSFP+ ports to be used for IRF
connections on the member switches according to your topology and connection scheme.
All the 10GBASE-T Ethernet ports, SFP+ ports, and QSFP+ ports on the switch can be used for IRF
connections.
Planning the cabling scheme
You can use twisted pair cables, SFP+/QSFP+ cables, or SFP+/QSFP+ transceiver modules and
optical fibers to connect the switches for IRF connections. For a long-distance connection, use
SFP+/QSFP+ transceiver modules and optical fibers. For a short-distance connection, use twisted
pair cables, SFP+ cables, or QSFP+ cables. For more information about available transceiver
modules and cables, see
The following subsections describe several H3C recommended IRF connection schemes, and all
these schemes use a ring topology.
IRF-port1
IRF-port2
IRF-port1
2
"Appendix C Ports and
31
IRF-port2
1
IRF-port1
IRF-port2
3
LEDs."
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