46
Figure 68 IRF fabric in ring topology
You can set up IRF links between S6850/S9850 switches as follows:
• Use a QSFP28 module and fiber or a QSFP28 cable to connect QSFP28 ports for a 100-GE
IRF physical connection.
• Use a QSFP+ module and fiber or a QSFP+ cable to connect QSFP28 ports for a 40-GE IRF
physical connection.
• Use a QSFP+ module and fiber or a QSFP+ cable to connect QSFP+ ports for a 40-GE IRF
physical connection.
You can bind several ports to an IRF port for increased bandwidth and availability.
Identifying physical IRF ports on the member switches
Identify the physical ports for IRF connections on the member switches according to your topology
and connection scheme.
All the QSFP28 ports and QSFP+ ports on the switches (including those on the interface modules),
can be used for IRF connections, except for QSFP28 ports on LSWM18CQMSEC interface
modules.
When you select ports in a port group for IRF links, you must use all or none of the ports in the group
for IRF links. The ports can be bound to different IRF ports.
On an LSWM116Q interface module of the switches, odd and even numbered ports are separated
for grouping. The ports are grouped by port number in order, starting from the lowest odd or even
number. Each group contains two ports with consecutive odd or even port numbers.
1
2
3
IRF-port2
IRF-port2
1
2 3
IRF-port1
IRF-port2
IRF-port1
IRF-port1
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