26-5
Figure 27-4 IRF port correspondence
Based on the type and number of the interface module inserted on Switch A, you can adopt one of the
following typical correspondences to establish an IRF connection.
z The dual-port 10 GE CX4 interface module is used in the following examples to introduce
correspondence between the IRF port and the physical IRF port(s).
z When the dual-port 10 GE SFP interface module is used, the correspondence between the IRF
port and the physical IRF port(s) is similar.
2) IRF port correspondence for one interface module
Figure 27-5 IRF port correspondence for one interface module
When a dual-port interface module is installed, you need to bind IRF-port 1 to physical IRF port 1, and
IRF-port 2 to physical IRF port 2 (as shown in
Figure 27-5), because the serial number of the physical
IRF port bound to IRF-port 1 must be smaller than that of the physical IRF port bound to IRF-port 2.
Therefore, you cannot bind IRF-port 1 to physical IRF port 2, and IRF-port 2 to physical port 1.
z If only one single-port interface module is installed, the device can be used only as Switch B or
Switch C in
Figure 27-4, that is, the device should be at either end of a bus connection.
z In this situation, because only one IRF port is needed on Switch B or Switch C, IRF-port 2 or
IRF-port 1 can be bound to any physical port on the device.
3) IRF port correspondence for two interface modules
z Correspondence in non-aggregate mode
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