Planning The Cabling Scheme - H3C S5560S-SI Series Installation Manual

Chassis
Other switch models

Planning the cabling scheme

Use the following cables to connect the IRF physical ports on the switches:
•
10/100/1000BASE-T autosensing Ethernet port—Category 5 or above twisted-pair cables.
•
SFP port—GE SFP fiber transceiver modules and optical fibers, GE SFP copper transceiver
modules and twisted-pair cables, or GE SFP cables. For the available models, see ports in
Hardware Information and Specifications.
•
SFP+ port—SFP+ transceiver modules and optical fibers or SFP+ cables. For the available
models, see ports in Hardware Information and Specifications.
If the IRF member switches are far away from one another, use SFP/SFP+ transceiver modules and
optical fibers. If the IRF member switches are all in one equipment room, use twisted pair cables or
SFP/SFP+ cables.
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.
Connecting the IRF member switches in one rack
Connect the IRF member switches (4 switches in this example) in a rack as shown in Figure4-4. The
switches in the ring topology (see Figure4-5) are in the same order as connected in the rack.
Figure4-4 Connecting the switches in one rack
1
2
3
4
Candidate IRF physical ports
4-42
Use restrictions
bound to different IRF ports.
The ports must operate at 1 Gbps.
The physical ports bound to an IRF port
must operate at the same speed.
The ports must operate at 1 Gbps.