Overview
The Cisco Nexus 93600CD-GX switch (N9K-C93600CD-GX) is a 1-rack unit (RU), fixed-port switch designed for spine-leaf-APIC deployment in data centers.
This switch has the following ports:
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28 10/40/100-Gigabit QSFP28 ports (ports 1-28)
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8 10/40/100/400-Gigabit QSFP-DD ports (ports 29-36)
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Two management ports (one 10/100/1000BASE-T port and one 1-Gbps SFP port)
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One console port (RS-232)
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1 USB port
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This switch offers QSA 10G support on all ports. |
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There is no support for 1-Gigabit nor 100-Megabit optics on this switch. |
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For ports 1 through 24, every 4 ports (1-4, 5-8, 9-12, and so on, referred to as a "quad") can operate either 10G or 40/100G (no breakout), but cannot have 10G and 40/100G at the same time. For example, the following combinations are supported.
The following combinations will have hardware disabled port.
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Supported mixed speed combination examples:
Port number |
Supported combinations |
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Port 1 |
4x10G or 4x25G |
4x10G or 4x25G |
Native 10G |
Port 2 |
hw-disabled |
hw-disabled |
Native 10G |
Port 3 |
4x10G or 4x25G |
Native 10G |
4x10G or 4x25G |
Port 4 |
hw-disabled |
Native 10G |
hw-disabled |
Port number |
Supported combinations |
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Port 1 |
4x10G or 4x25G |
Native 40/100G will be hw-disabled |
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Port 2 |
hw-disabled |
Native 40/100G will be hw-disabled |
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Port 3 |
Native 40/100G will be hw-disabled |
4x10G or 4x25G |
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Port 4 |
Native 40/100G will be hw-disabled |
hw-disabled |
For breakout information, see the Cisco APIC Layer 2 Networking Configuration Guide.
Leaf/Spine role considerations:
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This switch's default role is as a leaf switch.
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The default fabric links (ports 29-36) must be used for initial switch discovery via another switch.
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To change the switch from the default role, you must proceed as follows: the node appears as a discovered device in the fabric inventory view, you must set the role of the switch (spine or leaf) and the switch automatically goes for reboot to come up in the configured role.
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If you connect a default spine (i.e. a dual role switch that by default is a spine, such as Nexus 9316D-GX) directly to an APIC, the change of the role to leaf is performed automatically by APIC as well as the reboot. After that, the node appears in “Nodes pending registration” and you need to register the node.
Discovery considerations:
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Discovery via APIC – use the default downlink ports.
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Spine discovery – use the default fabric links (ports 29-36) and convert the switch to spine (reboot is required).
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Leaf discovery via spine – use the default fabric links (ports 29-36).
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Sub leaf discovery via leaf – use the default fabric links (ports 29-36).
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Multipod (Pod 2+) first spine discovery via IPN – Connect the IPN to one of the default fabric links (ports 29-36). Ensure the spine has at least one leaf node connected to it.
This switch includes the following user-replaceable components:
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Fan modules (six) with the following airflow choices:
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Port-side exhaust fan module with blue coloring (NXA-FAN-35CFM-PE)
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Port-side intake fan module with burgundy coloring (NXA-FAN-35CFM-PI)
Note
This switch runs with +1 redundancy mode, so that if one fan fails, the switch can sustain operation. But if a 2nd fan fails, this switch is not designed to sustain operation. Hence before waiting for major threshold temperature to be hit, the switch will power down due to Powered-down due to fan policy trigger.
Note
Each fan module has two rotors. The switch can function normally if one rotor inside the any one fan module fails. In case of more than one rotor failure, the switch will issue a warning and power down in 2 minute.
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Power supply modules (two—One for operations and one for redundancy [1+1]) with the following choices:
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1100-W port-side exhaust AC power supply with blue coloring (NXA-PAC-1100W-PE2)
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1100-W port-side intake AC power supply with burgundy coloring (NXA-PAC-1100W-PI2)
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1100-W port-side exhaust HVAC/HVDC power supply with blue coloring (NXA-PHV-1100W-PE)
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1100-W port-side intake HVAC/HVDC power supply with burgundy coloring (NXA-PHV-1100W-PI)
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1100-W port-side exhaust DC power supply with blue coloring (NXA-PDC-1100W-PE)
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1100-W port-side intake DC power supply with burgundy coloring (NXA-PDC-1100W-PI)
Note
All fan modules and power supplies must use the same airflow direction.
Note
In the event that only one power supply is operating in an active system and a second power supply is inserted, the system fan will slow down to 50% of Max speed for 12 seconds. It can take up to 10 seconds for the second power supply to become active. Please do not remove the first power supply during this time-frame, in order to avoid system shutdown.
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The following figure shows the switch features on the port side of the chassis.
1 |
Beacon (BCN), Status (STS), and Environment (ENV) LEDs |
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8 100/400-Gigabit QSFP-DD ports Ports 29-36 support 4x10 and 4x25G as port profile converted downlinks |
2 |
28 40/100-Gigabit QSFP28 ports Ports 25-28 support 4x10G and 4x25G breakout as native downlinks |
To determine which transceivers, adapters, and cables support this switch, see the Cisco Transceiver Modules Compatibility Information document.
The following figure shows the switch features on the power supply side of the chassis.
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Power supply modules (1 or 2) (AC power supplies shown) with slots numbered 1 (left) and 2 (right) |
4 |
Management port (1—RJ-45 copper port) |
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Fan modules (6) with slots numbered from 1 (left) to 6 (right) |
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Management port (1—SFP optical port) |
3 |
Console port (1) |
6 |
USB port (1) |
The following figure shows the side of the chassis.
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Screw holes for mounting brackets |
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Grounding pad |
Depending on whether you plan to position the ports in a hot or cold aisle, you can order the fan and power supply modules with port-side intake or port-side exhaust airflow. For port-side intake airflow, the fan and power supplies have burgundy coloring. For port-side exhaust airflow, the fan and power supplies have blue coloring.
The fan and power supply modules are field replaceable. You can replace one fan module or one power supply module during operations so long as the other modules are installed and operating. If you have only one power supply installed, you can install the replacement power supply in the open slot before removing the original power supply.
Note |
All fan and power supply modules must have the same direction of airflow. Otherwise, the switch can overheat and shut down. |
Caution |
If the switch has port-side intake airflow (burgundy coloring for fan modules), you must locate the ports in the cold aisle. If the switch has port-side exhaust airflow (blue coloring for fan modules), you must locate the ports in the hot aisle. If you locate the air intake in a hot aisle, the switch can overheat and shut down. |