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Identifying physical IRF ports on the member switches
Identify the physical IRF ports on the member switches according to your topology and connection
scheme.
Table 6
shows the physical ports that can be used for IRF connection and the port use restrictions.
Table 6 Physical IRF port requirements
Chassis
S5560-32C-HI
S5560-56C-HI
S5560-56F-HI
S5560-56C-PWR-HI
S5560-38C-HI-XG
Planning the cabling scheme
Use twisted pair/SFP+/QSFP+ cables or SFP+/QSFP+ transceiver modules and fibers to connect the IRF
member switches. If the IRF member switches are far away from one another, choose the SFP+/QSFP+
transceiver modules with optical fibers. If the IRF member switches are all in one equipment room, choose
twisted pair/SFP+/QSFP+ cables. For more information about twisted pair/SFP+/QSFP+ cables and
SFP+/QSFP+ transceiver modules, see
The following subsections describe several H3C recommended IRF connection schemes, and all these
schemes use a ring topology.
IMPORTANT:
In these schemes, all physical IRF ports are located on the same side. If physical IRF ports are on different
sides, you must measure the distance between them to select an appropriate cable.
Connecting the IRF member switches in one rack
Use SFP+ cables to connect the IRF member switches (9 switches in this example) in a rack as shown
in
Figure
47. The switches in the ring topology (see
rack.
Candidate physical IRF ports
•
Four fixed SFP+ ports on the front
panel
•
Ports on the interface card on the
rear panel
•
Four fixed SFP+ ports on the front
panel and eight fixed SFP+ ports
on the rear panel
•
Ports on the interface card on the
rear panel
"Appendix C Ports and
37
Requirements
•
All physical ports to be bound to an
IRF port must be the same type.
•
Physical ports on different interface
cards can be bound to the same IRF
port.
•
If a QSFP+ port is split into four SFP+
ports, the QSFP+ port cannot be
used as a physical IRF port.
LEDs."
Figure
48) are in the same order as connected in the
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