H3C S5150-EI Series, Руководство по настройке

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Connecting IRF physical interfaces
When you connect two neighboring IRF members, connect the physical interfaces of IRF-port 1 on
one member to the physical interfaces of IRF-port 2 on the other (see
Figure 11 ).
For example, you have four chassis: A, B, C, and D. IRF-port 1 and IRF-port 2 are represented by A1
and A2 on chassis A, represented by B1 and B2 on chassis B, and so on. To connect the four chassis
into a ring topology of A-B-C-D(A), the IRF link cabling scheme must be one of the following:
•
A1-B2, B1-C2, C1-D2, and D1-A2.
•
A2-B1, B2-C1, C2-D1, and D2-A1.
IMPORTANT:
No intermediate devices are allowed between neighboring members.
Figure 11 Connecting IRF physical interfaces
Connect the devices into a daisy-chain topology or a ring topology. A ring topology is more reliable
(see
Figure 12 ). In ring topology, the failure of one IRF link does not cause the IRF fabric to split as in
daisy-chain topology. Rather, the IRF fabric changes to a daisy-chain topology without interrupting
network services.
Figure 12 Daisy-chain topology vs. ring topology
Binding physical interfaces to IRF ports
When you bind physical interfaces to IRF ports, follow the restrictions in " IRF physical interface
requirements ."
IRF
fabric
Ring topology
Subordinate Subordinate
Master
IRF-port 1 IRF-port 2
IRF-port 1
IRF-port 2 IRF-port 1
IRF-port 2
Daisy-chain topology
IRF
fabric
Master
Subordinate
Subordinate
IRF-port 2
IRF-port 2
IRF-port 1
IRF-port 1