Figure 10 Connecting IRF physical ports
Connect the devices into a daisy chain topology or a ring topology. A ring topology is more reliable
(see
Figure 1
chain topology. Rather, the IRF fabric changes to a daisy chain topology without interrupting network
services.
To use the ring topology, you must have at least three member devices.
Figure 11 Daisy chain topology vs. ring topology
Master
IRF-Port1
Subordinate
IRF-Port1
Subordinate
Daisy chain topology
Binding physical ports to IRF ports
When you bind physical ports to IRF ports, follow these guidelines:
Follow the restrictions in
•
You must always shut down a physical port before binding it to an IRF port or removing the binding.
•
Start the shutdown operation on the master and then the member device that has the fewest number
of hops from the master.
On a physical port bound to an IRF port, you can execute only the shutdown, description,
priority-flow-control, and flow-interval commands. For more information about these commands, see
Layer 2—LAN Switching Command Reference.
To bind physical ports to IRF ports:
Step
1.
Enter system view.
1). In ring topology, the failure of one IRF link does not cause the IRF fabric to split as in daisy
IRF
IRF-Port2
IRF-Port2
"IRF physical port restrictions and binding
Command
system-view
Master
IRF-Port1
IRF
IRF-Port2
IRF-Port1
Subordinate
Ring topology
Remarks
N/A
18
IRF-Port2
IRF-Port1
IRF-Port2
Subordinate
requirements."