Planning The Cabling Scheme - H3C S6520X-SI Series Installation Manual

Planning the cabling scheme

Use the following cables to connect the IRF physical ports on the switch:
•
Category 5e or above twisted-pair cable—5G/2.5G/1000BASE-T,
5G/2.5G/1000/100BASE-T, 10G/5G/2.5G/1000BASE-T, and 10G/5G/2.5G/1000/100BASE-T
autosensing Ethernet ports.
•
Category 6 or above twisted-pair cable—1/10GBASE-T autosensing Ethernet ports.
•
SFP+ transceiver modules and optical fiber or SFP+ cable—SFP+ ports. For the available
models, see SFP+ port in
•
SFP28 transceiver modules and optical fiber or SFP28 cable—SFP28 ports. For the
available models, see SFP28 port in
•
QSFP+ transceiver modules and optical fiber or QSFP+ cable—QSFP+ ports. For the
available models, see QSFP+ port in
For a short-distance IRF connection in an equipment room, use a twisted-pair cable, SFP+ cable,
SFP28 cable, or QSFP+ cable.
For a long-distance IRF connection, use SFP+/SFP28/QSFP+ transceiver modules and optical
fibers.
The following subsections describe several H3C recommended IRF connection schemes by using
SFP+ cables and SFP+ transceiver modules and fibers. 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
Connect the IRF member switches (9 switches in this example) in a rack as shown in
switches in the ring topology (see
Figure 47 Connecting the switches in one rack
"Appendix C Ports and
"Appendix C Ports and
"Appendix C Ports and
Figure 48) are in the same order as connected in the rack.
39
LEDs."
LEDs."
LEDs."
Figure 47. The