Connecting Leaf Switches To Spine Switches - Cisco Nexus 9300-FX Hardware Installation Manual

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Connecting Leaf Switches to Spine Switches

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
http://www.cisco.com/c/en/us/support/interfaces-modules/transceiver-modules/products-device-support-tables-list.html.
To see the transceiver specifications and installation information, see
http://www.cisco.com/c/en/us/support/interfaces-modules/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.
To determine which transceivers and cables are supported by this switch, see
Note
http://www.cisco.com/c/en/us/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.
Leaf Switch
Cisco Nexus 93108TC-EX
Cisco Nexus 9348GC-FXP ACI Mode Hardware Installation Guide
28
Connecting the Switch to the ACI Fabric
Default Uplink
Supported Transmission
Connections
Speeds (Uplink Ports)
6 QSFP28 fixed ports
10, 40, and 100 Gigabits
1

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