C9500-32C-A – 32×40/100G QSFP28 Ports – 96×10/25G Breakout – Network Advantage

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C9500-32C-A Description

The C9500-32C-A is a Cisco Catalyst 9500 Series fixed core and aggregation switch with Network Advantage licensing for 100G campus cores and small data center aggregation. The switch has 32 QSFP28 ports that run at 40G or 100G, up to 96 breakout interfaces at 10G or 25G, 6.4 Tbps of switching capacity, 2 Bpps of forwarding and 82,000 MAC address entries. The switch does not support C9500-NM-8X or C9500-NM-2Q network modules, so the 32 fixed ports are its only port capacity.

Quick Specs

Parameter

Specification

Product ID

C9500-32C-A

Product type

High-performance fixed core and aggregation switch

Network license

Network Advantage

Port configuration

32 x 40G/100G QSFP28 ports

Breakout support

Up to 96 x 10G or 25G breakout ports

Switching capacity

Up to 6.4 Tbps

Forwarding rate

Up to 2 Bpps

DRAM and flash

16 GB DRAM and 16 GB flash

Default power supply

C9K-PWR-1600WAC-R 1600W AC

Power supply slots

2

Power supply options

C9K-PWR-1600WAC-R and C9K-PWR-1600WDC-R

Fan modules

C9K-T2-FANTRAY, up to 5 fans

Minimum software release

Cisco IOS XE Fuji 16.8.1a

Product Performance

Switching Capacity
Forwarding Rate
40G/100G QSFP28 Density

Key Features

Network Advantage Routing And Segmentation

The -A suffix adds BGP, IS-IS, VXLAN, TrustSec and StackWise Virtual to the Layer 2 and OSPF base of Network Essentials, which matters when the switch sits at the routed core.

32 Ports At 100G

All 32 QSFP28 ports run at 100G or 40G, so a fully populated 100G aggregation layer needs no trade-off between port count and speed.

Breakout To 10G And 25G

Breakout on 24 of the ports yields up to 96 interfaces at 10G or 25G. Each broken-out port needs its own cable and optic plan.

6.4 Tbps And 2 Bpps

Switching capacity and forwarding rate are double those of the C9500-32QC-A, and the 82,000-entry MAC table and 256,000 IPv4 routes are shared with the rest of the UADP 3.0 group.

1600W Dual Power Supplies

Two supply slots take C9K-PWR-1600WAC-R or C9K-PWR-1600WDC-R. AC input runs 90 to 140 VAC or 180 to 264 VAC, and DC input runs -40 to -72 VDC.

Fan Tray With Up To Five Fans

The switch uses the C9K-T2-FANTRAY with up to five fans, a different tray from the C9K-T1-FANTRAY on the 650W-supply Catalyst 9500 models.

Application Scenarios

Campus Core At 100G

In a campus core, the switch terminates 100G links from building distribution switches and runs BGP, IS-IS and VXLAN from its Network Advantage license.

Small Data Center Spine

A small data center can use the switch as a spine, with 100G ports facing the leaf layer and breakout ports that reach 10G or 25G equipment.

Server Aggregation With Breakout

Where a row of servers connects at 10G or 25G, breakout on the QSFP28 ports gives one switch up to 96 server-facing interfaces alongside its native 100G uplinks.

Product Comparison

Parameter

C9500-32C-A

C9500-32C-E

C9500-32QC-A

Port configuration

32 x 40G/100G QSFP28

32 x 40G/100G QSFP28

32 x 40G QSFP+ or up to 16 x 100G QSFP28

Breakout support

Up to 96 x 10G/25G

Up to 96 x 10G/25G

Not published

Network module support

Not supported

Not supported

Not supported

Switching capacity

Up to 6.4 Tbps

Up to 6.4 Tbps

Up to 3.2 Tbps

Forwarding rate

Up to 2 Bpps

Up to 2 Bpps

Up to 1 Bpps

MAC addresses

Up to 82,000

Up to 82,000

Up to 82,000

Network license

Network Advantage

Network Essentials

Network Advantage

Default power supply

C9K-PWR-1600WAC-R 1600W AC

C9K-PWR-1600WAC-R 1600W AC

C9K-PWR-650WAC-R 650W AC

Fan modules

C9K-T2-FANTRAY, up to 5 fans

C9K-T2-FANTRAY, up to 5 fans

C9K-T1-FANTRAY, up to 4 fans

C9500-32C-A and C9500-32QC-A are both Network Advantage switches with 32 QSFP28 ports, but C9500-32C-A runs all 32 ports at 100G on 6.4 Tbps and 2 Bpps, while C9500-32QC-A reaches 100G on only 16 ports, or 24 x 40G plus 4 x 100G, on 3.2 Tbps and 1 Bpps. Designs that fan 40G/100G ports out to 10G or 25G need C9500-32C-A, the only one of the two with listed breakout, up to 96 interfaces. It also takes 1600W C9K-PWR-1600WAC-R supplies and C9K-T2-FANTRAY, where C9500-32QC-A uses 650W supplies and C9K-T1-FANTRAY. Where Layer 2 and routed access with OSPF up to 1,000 routes are enough, C9500-32C-E is the same hardware on Network Essentials.

Ordering Checklist

  • Subscription and Smart Account: Add a term-based Catalyst Software Subscription or Cisco DNA subscription at the Advantage tier, and name the Smart Account it is placed under. The subscription must match the Network Advantage license on this switch, and the order cannot be completed without a Smart Account.
  • Second power supply: The configurator preselects a second supply; C9500-SPS-NONE removes it. Supplies are C9K-PWR-1600WAC-R or the 1600W DC option. A second supply is added unless removed explicitly.
  • Power cord: Select a power cord for each supply ordered. The configuration cannot be completed without one.
  • RFID: Choose C9500-RFID or C9500-RFID-NONE on the order. RFID cannot be added after the switch ships.

Optional Add-ons

Model

Description

C9K-PWR-1600WAC-R

1600W AC power supply supported on C9500-32C-A

C9K-PWR-1600WDC-R

1600W DC power supply supported on C9500-32C-A

C9K-T2-FANTRAY

Fan tray supported on C9500-32C-A with up to five fans

C9500-ACCKITH-19I=

19-inch rack mount accessory kit for Cisco Catalyst 9500 Series High-End switches

C9500-ACCKITH-23I=

23-inch rack mount accessory kit for Cisco Catalyst 9500 Series High-End switches

C9500-32C-A Switch Front Panel

1

32 40G/100G QSFP28 ports

5

RFID (Optional)

2

Ethernet management port

6

Console port (RJ-45 Serial)

3

Reset button

7

USB 3.0 host port

4

USB mini Type B console port

–

C9500-32C-A Switch Rear Panel

The switch rear panel includes StackWise connectors, StackPower or XPS connectors, ports, fan modules, and power supply modules.

1

Power supply modules

7

Fan 3

2

Fan modules

8

Fan 2

3

Grounding pad

9

Fan 1

4

SATA SSD module

10

Fan 0

5

PSU 1

11

PSU 0

6

Fan 4

–

–

Components Delivered in the Shipping Box

The shipping box contains the model of the switch you ordered and other components needed for installation. Some components are optional, depending on your order.

1

Cisco Catalyst 9500 Series switch with optional network module1 (power supply and fan modules not shown)

7

Eight number-8 Phillips flat-head 0.312″ long screws

2

Product documentation and compliance document

8

Two M4.0 x 20mm Phillips pan-head screws (Black color)

3

Two 19-inch mounting brackets

9

Ground lug and two M4.0 x 8mm Phillips pan-head screws

4

Two Cable guides

10

(Optional) AC power cord2

5

Four number-12 pan-head 0.50″ long screws

11

(Optional) RJ-45 console cable1

6

Four number-10 pan-head 0.625″ long screws

12

(Optional) USB console cable1

cisco-catalyst-9500-switch-shipping-box

Specifications

Parameter Specification Parameter Specification
Product ID C9500-32C-A Product type High-performance fixed core and aggregation switch
Network license Network Advantage Minimum software release Cisco IOS XE Fuji 16.8.1a
Total ports 32 x 40G/100G QSFP28 ports Breakout support Up to 96 x 10G or 25G breakout ports
Switching capacity Up to 6.4 Tbps Forwarding rate Up to 2 Bpps
DRAM 16 GB Flash 16 GB
Power supply slots 2 Power supply options C9K-PWR-1600WAC-R, C9K-PWR-1600WDC-R
AC input voltage 90 to 140 VAC and 180 to 264 VAC with C9K-PWR-1600WAC-R DC input voltage -40 to -72 VDC with C9K-PWR-1600WDC-R
Heat dissipation 3,631 BTU/hr with C9K-PWR-1600WAC-R; 3,709 BTU/hr with C9K-PWR-1600WDC-R Fan modules C9K-T2-FANTRAY, up to 5 fans
Acoustic noise No greater than 77 LwAd dB Dimensions (H x W x D) 1.73 x 17.5 x 21.2 in. (4.4 x 44.5 x 56.8 cm)
Rack units 1 RU

Quality Certifications

Customer Reviews

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4.9
(16 reviews)
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    Hannah Stewart
    Posted on 28/04/2026
    Verified Buyer
    5.0

    Ran a hardware verification check. No red flags at all.

    Sven Ross
    Posted on 25/04/2026
    Verified Buyer
    5.0

    Their support team is just as helpful after the sale as before. Refreshing.

    Shirley Larsson
    Posted on 06/04/2026
    Verified Buyer
    5.0

    Slotted into our existing setup with zero compatibility issues.

    Bruce Banner
    Posted on 30/05/2025
    Verified Buyer
    5.0

    Genuine product. No issues with verification.

    Procurement
    Posted on 10/02/2025
    Verified Buyer
    5.0

    Competitive quote. Shipping was prompt.

Questions & Answers

  • Does C9500-32C-A support StackWise Virtual?

    Yes. C9500-32C-A supports StackWise Virtual as a Network Advantage feature. The subscription on the order must match that license tier, and the order cannot be completed without a Smart Account.
  • What does Network Advantage on C9500-32C-A include?

    Network Advantage on C9500-32C-A includes BGP, IS-IS, VXLAN and TrustSec, along with the Layer 2 and OSPF base. In a campus core, the switch terminates 100G links from building distribution switches and runs BGP, IS-IS and VXLAN from this license.
  • What is the output of each C9K-PWR-1600WAC-R on 110 V input in C9500-32C-A?

    Each C9K-PWR-1600WAC-R delivers 1000W on 110 V input and the full 1600W on 220 V input. The two supplies run in 1+1 redundant load sharing, so plan the rack feed for the lower figure when only 110 V circuits are available.
  • How many ASICs does C9500-32C-A use, and how much buffer does each one have?

    C9500-32C-A uses 2 UADP 3.0 ASICs, each with a 36 MB buffer, linked by 400G inter-ASIC connections. Each ASIC serves 16 of the QSFP28 cages. This layout is read from the Cisco block diagrams.
  • What do the Core and NAT SDM templates mean for C9500-32C-A?

    Core is the default template. The NAT template sets PBR/NAT at 15,500, security ACL at 20,000, QoS ACL at 8,000 and tunnel/MACsec at 2,000. Changing the template requires a reload, and the SD-Access template was removed in IOS XE 17.3.1.
  • Can C9500-32C-A run TrustSec SGT and MPLS at the same time?

    No. The SGT label table is shared with MPLS, so only one of the two can use it. Official support is 16K for SGT and 32K for MPLS. Both features come with Network Advantage, and an SDM change needs a reload.
  • Does C9500-32C-A run MACsec-256 at line rate on 100G ports?

    Yes. LAN MACsec at 256-bit runs at line rate on all ports and at every speed from 1G to 100G. C9500-32C-A needs the Network Advantage license for the 256-bit key length, since 128-bit is the Network Essentials limit.
  • At what packet size does C9500-32C-A reach line rate?

    C9500-32C-A reaches full line rate at 187-byte packets and above. Traffic made up of smaller frames, such as short voice or control packets, can fall short of the headline forwarding rate, so test the real packet mix.
  • How many switches can join a StackWise Virtual pair with C9500-32C-A?

    Exactly 2 switches form one logical switch, and the StackWise Virtual link uses fixed front-panel ports. C9500-32C-A meets the Network Advantage requirement. The Catalyst 9500 first supported the feature in IOS XE 16.8.1 or 16.9.1.
  • Which SSD PIDs can be installed in C9500-32C-A?

    C9500-32C-A accepts the pluggable SATA SSDs C9K-F1-SSD-240G, C9K-F1-SSD-480G and C9K-F1-SSD-960G, up to 960 GB for container application hosting. The C9500-NM modules are not an option, but the SSD slot is. Support starts in IOS XE 16.8.1a.

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DataSheet Downloads

  • C9500-32C-A Datasheet