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Connecting Leaf Switches to Spine Switches
Before You Begin
The APIC and leaf switches in the fabric must be fully installed in their racks and grounded.
Step 1
Connect an interface cable to one of the two ports on the virtual interface card (VIC) installed on the APIC. If the cable
is not already assembled to its transceivers, insert the transceiver into the VIC port and then connect the optical interface
cable to the transceiver.
• For a VIC1225 optical module, use one of the following sets of transceivers and cables:
◦ Cisco 10GBASE-LR transceivers (SFP-10G-LR) supporting a link length of up to 6.1 miles (10 km)
◦ Cisco 10GBASE-SR transceivers (SFP-10G-SR) supporting the following link lengths:
◦ Using 2000 MHz MMF (OM3) for up to 984 feet (300 m)
◦ Using 4700 MHz MMF (OM4) for up to 1312 feet (400 m)
◦ Cisco SFP+ Active Optical Cables (SFP-10G-AOCxM [where x=1, 2, 3, 5, 7, or 10 for lengths in meters])
To determine which transceivers, adapters, and cables are supported by this switch, see
en/us/support/interfaces-modules/transceiver-modules/products-device-support-tables-list.html. To see the transceiver
specifications and installation information, see
transceiver-modules/products-installation-guides-list.html.
• For a VIC1225T 10GBASE-T copper module, use 10GBASE-T cables with RJ-45 connectors.
Step 2
Connect the other end of the interface cable to a downlink port on a leaf switch.
• For a Cisco 10GBASE-LR or -SR transceiver and cable, insert the transceiver into a downlink optical port on a
leaf switch before connecting the cable to the transceiver.
• For Cisco SFP+ Active Optical Cables, insert the transceiver on the cable into a downlink optical port on a leaf
switch.
• For a 10GBASE-T copper cable, insert the RJ-45 connector on the cable into a downlink BASE-T port on a leaf
switch.
Note
To determine which transceivers and cables are supported by this switch, see
support/interfaces-modules/transceiver-modules/products-device-support-tables-list.html.
Connecting Leaf Switches to Spine Switches
For optimal forwarding between endpoints, you must connect each leaf switch (Cisco Nexus 93108TC-EX,
93108TC-FX, 93120TX, 93128TX, 93180LC-EX, 93180YC-EX, 93180YC-FX, 9332PQ, 9348GC-FXP,
9372PX, 9372PX-E, 9372TX, 9372TX-E, 9396PX, or 9396TX) to every spine switch (Cisco Nexus 9336PQ,
9364C, 9504, 9508, or 9516) in the same ACI fabric. The following table lists the number of ports that you
can connect on each type of leaf switch and the supported speeds for those ports.
Cisco Nexus 93108TC-FX ACI Mode Hardware Installation Guide
28
http://www.cisco.com/c/en/us/support/interfaces-modules/
Connecting the Switch to the ACI Fabric
http://www.cisco.com/c/
http://www.cisco.com/c/en/us/
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