N9K-C9332C – 32×40/100G QSFP28 – 2×1/10G SFP+ – 1RU Nexus Spine Switch
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N9K-C9332C Description
The N9K-C9332C is a Cisco Nexus 9300 1RU fixed spine switch for 40G and 100G data center fabrics that run Cisco ACI or standalone NX-OS. The switch has 32 40/100G QSFP28 ports and 2 1/10G SFP+ ports, with 6.4 Tbps of bandwidth and 4.4 bpps of forwarding, and its airflow runs port-side intake or port-side exhaust. Breakout cables are not supported, so each QSFP28 port carries a single 40G or 100G link, and wire-rate MACsec is limited to ports 25 through 32.
Quick Specs
|
Parameter |
Specification |
|---|---|
|
Product ID |
N9K-C9332C |
|
Form factor |
1RU fixed spine switch |
|
QSFP28 ports |
32 x 40/100G |
|
SFP+ ports |
2 x 1/10G |
|
Breakout cables |
Not supported |
|
MACsec-capable ports |
Ports 25-32 (last 8 ports) |
|
Operating mode |
Cisco ACI Spine or Cisco NX-OS |
|
Switching capacity |
6.4 Tbps |
|
Forwarding rate |
4.4 bpps |
|
Packet buffer |
40 MB |
|
Power supplies |
2 slots (1+1): 750W AC, 1100W AC, 1100W DC or 1100W HVAC/HVDC, selected at order |
|
Fan modules |
5 x NXA-FAN-35CFM (4+1 redundant) |
|
Airflow |
Port-side intake or port-side exhaust |
Product Performance
Key Features
All 32 ports run native 40G or 100G, and the platform supports no breakout cables. A design that splits 100G ports into 25G or 10G server links needs a different switch.
Wire-rate MACsec encryption runs in hardware on ports 25 through 32 only. Links that must be encrypted, such as leaf-to-spine runs leaving a secured room, are planned onto that block of eight.
The same hardware joins a Cisco ACI fabric as a spine or runs as a standard Nexus switch in NX-OS mode. A fabric can therefore move from NX-OS to ACI later without changing the switch.
The default profile holds 7,000 IPv4 LPM routes and 96,000 host entries. The LPM-heavy profile raises IPv4 LPM routes to 262,000 and IPv6 LPM routes to 131,000, which matters when the switch carries full routing tables rather than host routes.
Five 35CFM fan modules run four-plus-one, and each module keeps working with one of its two rotors failed. The two power supplies form a 1+1 pair, and either fan or supply can be replaced while the switch runs.
The switch draws 296W typical and 700W at maximum. Supply redundancy holds on 200-240V AC feeds; on a 100-120V feed the supplies are limited to 800W of output and run without redundancy.
Application Scenarios
A small ACI fabric can use the switch as its spine, with each leaf uplink landing on its own 100G QSFP28 port and up to 32 uplinks inside a single rack unit.
When fabric links cross between data halls or buildings, operators terminate them on ports 25 through 32 so the traffic leaves the room encrypted with wire-rate MACsec.
In a data center that runs standalone NX-OS, the switch aggregates 40G and 100G uplinks from top-of-rack switches and storage arrays, while the two SFP+ ports take 1G or 10G links for auxiliary equipment.
Product Comparison
|
Parameter |
N9K-C9332C | ||
|---|---|---|---|
|
Downlink ports |
32 x 40/100G QSFP28 |
64 x 40/100G QSFP28 |
28 x 40/100G QSFP28 |
|
Additional ports |
2 x 1/10G SFP+ |
2 x 1/10G SFP+ |
8 x 400/100G QSFP-DD |
|
Breakout cables |
Not supported |
Not supported |
Supported by port range |
|
Switching capacity |
6.4 Tbps |
12.84 Tbps |
12 Tbps |
|
Forwarding rate |
4.4 bpps |
4.3 bpps |
4.0 bpps |
|
Packet buffer |
40 MB |
40 MB |
80 MB |
|
Airflow |
Port-side intake or exhaust |
Port-side intake or exhaust |
Port-side intake or exhaust |
N9K-C9332C and N9K-C9364C differ in port count: N9K-C9332C has 32 40/100G QSFP28 ports at 6.4 Tbps, while N9K-C9364C has 64 at 12.84 Tbps. Both keep a 40 MB buffer and neither supports breakout cables, so a spine that must terminate more than 32 leaf uplinks needs the 64-port model. A fabric that needs 25G or 10G server ports through breakout cables, or 400G links toward the next tier, moves to N9K-C93600CD-GX, which adds 8 400/100G QSFP-DD ports, supports breakout by port range and doubles the buffer to 80 MB.
Ordering Checklist
- Airflow direction: Order five NXA-FAN-35CFM-PE fans with -PE power supplies for port-side exhaust, or NXA-FAN-35CFM-PI fans with -PI supplies for port-side intake. Mixed airflow can overheat the switch and shut it down.
- Power supply type: Select two supplies on the same input: NXA-PAC-750W or NXA-PAC-1100W-PE2/PI2 for AC, NXA-PDC-1100W for DC, or NXA-PHV-1100W for HVAC/HVDC. AC and DC sources cannot be mixed in one chassis.
- 750W AC supplies: Choose NXA-PAC-1100W-PE2 or -PI2 instead when optics drawing 5W or more will fill every port. The 750W AC supply also requires NXOS-9.3.3 or ACI-N9KDK9-14.2 and later.
- Layer 3 license: Add the NX-OS license for IP unicast and multicast routing when the switch will route. The default system software covers only the Layer 2 security and management feature set.
- Power cords: Add the country AC cord, an HVAC/HVDC cable such as CAB-HVAC-SD-0.6M or CAB-HVDC-3T-2M, or NO-POWER-CORD. NXA-PDC-1100W supplies ship with the connector fitted and need no cable.
- Rack kit: Add N9K-C9300-RMK, N9K-C9300-ACK or N3K-C3064-ACC-KIT from the accessory list. Mounting hardware is a separate line in the ordering table.
Optional Add-ons
|
Model |
Description |
|---|---|
|
NXA-FAN-35CFM-PE |
Cisco Nexus 35CFM fan module with port-side exhaust airflow |
|
NXA-FAN-35CFM-PI |
Cisco Nexus 35CFM fan module with port-side intake airflow |
|
NXA-PAC-750W-PE |
Cisco Nexus 750W AC power supply with port-side exhaust airflow |
|
NXA-PAC-750W-PI |
Cisco Nexus 750W AC power supply with port-side intake airflow |
|
NXA-PAC-1100W-PE2 |
Cisco Nexus 1100W AC power supply with port-side exhaust airflow |
|
NXA-PAC-1100W-PI2 |
Cisco Nexus 1100W AC power supply with port-side intake airflow |
|
NXA-PDC-1100W-PE |
Cisco Nexus 1100W DC power supply with port-side exhaust airflow |
|
NXA-PDC-1100W-PI |
Cisco Nexus 1100W DC power supply with port-side intake airflow |
|
NXA-PHV-1100W-PE |
Cisco Nexus 1100W HVAC/HVDC power supply with port-side exhaust airflow |
|
NXA-PHV-1100W-PI |
Cisco Nexus 1100W HVAC/HVDC power supply with port-side intake airflow |
|
N9K-C9300-RMK |
Cisco Nexus 9300 rack mount kit |
|
N9K-C9300-ACK |
Cisco Nexus 9300 accessory kit |
|
Cisco Nexus 1RU switch accessory kit |
Specifications
| Parameter | Specification | Parameter | Specification |
|---|---|---|---|
| Product ID | N9K-C9332C | Product type | Fixed-port data center spine switch |
| Rack units | 1RU | Operating modes | Cisco ACI Spine or Cisco NX-OS |
| QSFP28 ports | 32 x 40/100G | SFP+ ports | 2 x 1/10G |
| Breakout cables | Not supported | MACsec-Capable ports | Ports 25-32 (last 8 ports), wire rate |
| Management port | 1 x 10/100/1000BASE-T and 1 x 1G SFP | RS-232 serial console ports | 1 |
| USB port | 1 (USB 2.0 devices under 2.5W) | Switching capacity | 6.4 Tbps |
| Forwarding rate | 4.4 bpps | Buffer | 40 MB |
| DRAM | 16 GB | SSD | 128 GB |
| CPU | Broadwell-DE, 4 cores | Software Licensing | Layer 2 features in the default software; Layer 3 unicast and multicast routing need an additional license |
| Maximum IPv4 LPM routes | 7,000 default; 262,000 LPM heavy | Maximum IPv4 host entries | 96,000 default; 262,000 LPM heavy |
| Maximum IPv6 LPM routes | 3,500 default; 131,000 LPM heavy | Maximum IPv6 host entries | 96,000 default; 262,000 LPM heavy |
| Maximum MAC address entries | 92,000 | Multicast routes | 8,000 default; 32,768 LPM heavy |
| IGMP snooping groups | 8,000 | ACL entries | 4,000 ingress and 2,000 egress per slice; maximum 16,000 ingress and 8,000 egress |
| VLAN IDs | 4,096 (127 reserved) | Maximum VRF instances | 1,000 |
| Maximum port channels | 64 | Maximum links in a port Channel | 32 |
| Maximum ECMP paths | 64 | Maximum ECMP groups | 1,024 |
| Active SPAN sessions | 4 | Maximum RPVST instances | 3,967 |
| Maximum HSRP groups | 490 | Maximum MST instances | 64 |
| Maximum VTEPs | 256 | Number of queues | 8 |
| Static NAT entries | 1,023 | Dynamic NAT entries | 1,023 |
| Static twice NAT entries | 768 | Dynamic twice NAT entries | 1,023 |
| Power supply slots | 2 (1 operational, 1 redundant) | Power supply selection | Chosen at order: NXA-PAC-750W-PE/PI 750W AC, NXA-PAC-1100W-PE2/PI2 1100W AC, NXA-PDC-1100W-PE/PI 1100W DC or NXA-PHV-1100W-PE/PI 1100W HVAC/HVDC |
| Supported AC power supplies | NXA-PAC-750W-PE, NXA-PAC-750W-PI, NXA-PAC-1100W-PE2, NXA-PAC-1100W-PI2 | Supported DC power supplies | NXA-PDC-1100W-PE, NXA-PDC-1100W-PI |
| Supported HVAC/HVDC power supplies | NXA-PHV-1100W-PE, NXA-PHV-1100W-PI (data sheet lists HVAC/HVDC support as a roadmap item) | 750W AC software requirement | ACI-N9KDK9-14.2 or NXOS-9.3.3 and later |
| Input voltage | 100 to 240V AC; -40V to -72V DC (min-max), -48V to -60V DC (nominal) | 100-120V AC input | Maximum output 800W; PSU redundancy not supported |
| HVAC/HVDC input | 100 to 277V AC or 240 to 380V DC | Frequency | 50 to 60 Hz (AC) |
| Efficiency | 90% or greater (20 to 100% load) | Typical power consumption | 296W (AC) |
| Maximum power consumption | 700W (AC) | Heat dissipation | 2415.796 BTU/hr |
| Optics power requirement | 1100W supplies required when optics drawing 5W or more fill all ports | Fan modules | 5 hot-swappable modules (4 operational, 1 redundant) |
| Fan module options | NXA-FAN-35CFM-PE (port-side exhaust), NXA-FAN-35CFM-PI (port-side intake) | Airflow | Port-side intake or port-side exhaust; fans and power supplies must match |
| Acoustic noise | 76.4 dBA at 50% fan speed; 83.3 dBA at 70%; 92.1 dBA at 100% | Physical (H x W x D) | 1.7 x 17.3 x 22.9 in. (4.4 x 43.9 x 58.1 cm) |
| Weight | 11.4 kg (25.1 lb) with power supplies and fans; 8.6 kg (19 lb) without | Operating temperature | 0°C to 40°C (32°F to 104°F) |
| Nonoperating (storage) temperature | -40°C to 70°C (-40°F to 158°F) | Operating humidity | 5 to 90% (noncondensing) |
| Operating altitude | 0 to 13,123 ft (0 to 4000 m) | MTBF | 363,500 hours |
| Safety certifications | UL 60950-1, CAN/CSA-C22.2 No. 60950-1, EN 60950-1, IEC 60950-1, AS/NZS 60950-1, GB4943 | EMC: emissions | 47CFR Part 15 Class A, CISPR22 Class A, EN55022 Class A, ICES003 Class A, VCCI Class A, EN61000-3-2, EN61000-3-3, KN22 Class A, CNS13438 Class A |
| EMC: immunity | EN55024, CISPR24, EN300386, KN 61000-4 series | RoHS compliance | RoHS-6 compliant with exceptions for leaded BGA balls and lead press-fit connectors |
| Supported optics | Cisco transceiver device support tables list supported modules and minimum releases | Accessories | N9K-C9300-RMK, N9K-C9300-ACK, N3K-C3064-ACC-KIT |
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Customer Reviews
Questions & Answers
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Does N9K-C9332C keep power supply redundancy on 100-120V input?
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What input voltage ranges do the power supplies for N9K-C9332C accept?
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How does N9K-C9332C behave when a second power supply is inserted?
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What USB devices does N9K-C9332C accept?
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How much does N9K-C9332C weigh and how deep is the chassis?
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