C9400X-SUP-2 – 240 Gbps supervisor engine – Cisco Catalyst 9400X

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C9400X-SUP-2

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C9400X-SUP-2 Description

C9400X-SUP-2
C9400X-SUP-2—known as the Catalyst 9400X Supervisor 2—delivers 240 Gbps per slot and a 2.4 Tbps fabric to any 9400R chassis, with four onboard 25 G/10 G SFP28 uplinks. Powered by Cisco’s UADP 3.0 ASIC, it provides hardware MACsec-256 encryption, flexible SDM templates, and real-time telemetry via gRPC. Ideal for mid-tier aggregation and distribution, this supervisor balances performance, security, and cost for modern campus networks.

Product Performance

Per-slot switching Capacity(9400R)
Centralized wired capacity
Forwarding rate

Quick Spec

Parameter

Specification

Per-slot switching capacity

240 Gbps

Centralized switching cap.

Up to 9.6 Tbps

Forwarding rate

900 Mpps (IPv4) / 782.6 Mpps (IPv6)

10 GbE SFP+ ports

Up to 388 non-blocking

25 GbE SFP28 ports

Up to 168 non-blocking

100/40 GbE uplinks

4 non-blocking

25/10 GbE uplinks

4 non-blocking

Total MAC addresses

Up to 128 000

IPv4 routing entries

Up to 256 000

Key Features

Balanced 240 Gbps/slot fabric

Accommodates high-density 25 G, 10 G, and mGig access switches without oversubscription.

Four native 25 G uplinks

Frees line-card slots for user ports and simplifies cabling in aggregation layers.

UADP 3.0 ASIC

Doubles table scale over Gen-1, supports flexible SDM templates, VXLAN EVPN and deep packet buffering.

MACsec-256 hardware encryption

Secures campus east-west traffic at line rate without external crypto appliances.

Rich telemetry & programmability

GRPC model-driven data, NETCONF/RESTCONF APIs and on-box Python for automated operations.

Hitless upgrades & fail-over

Stateful SSO/NSF and ISSU ensure under-lay and overlay services remain uninterrupted during maintenance.

Applications Scenarios

Enterprise Campus Core

Aggregation for multi-building networks with high-availability & security

Data-Center Edge

100 GbE uplinks for server/storage interconnects and container-based services

IoT & Smart Buildings

Local analytics on SSD for Cisco DNA-managed deployments

C9400X-SUP-2 Module Features

C9400X-SUP-2

Call Out No.

Feature

Description

1

USB Type A Host Port

This USB port is a host port for an external USB disk drive. It supports USB versions 3.0, 2.0, 1.1, and 1.0.See USB Type A Host Port

2

USB mini Type B Console Port

This USB port can be used as a console port, allowing attachment to PCs that are not equipped with an RS-232 interface.See Console Ports

3

10/100/1000 Ethernet Management Port (RJ-45 connector)

The Ethernet management port is a Layer 3 host port to which you can connect a PC. By default, the Ethernet management port is enabled. You can use the Ethernet management port instead of the switch console port for network management. This port is not active while the switch is operating normally.Note When connecting a PC to the Ethernet management port, you must assign an IP address.See Ethernet Management Port

4

Console port (RJ-45 connector)

This is an RS-232 serial or console port for system management.See Console Ports

5

RESET switch (recessed)

The RESET switch is used to reset and restart the switch.Note The reset switch is recessed into the front panel. Use a paper clip or a small, pointed object to press the RESET switch.

6

10-GigabitEthernet (GE) or 25-GE uplink ports

The supervisor module has four 10-GE or 25-GE uplink ports.These ports require SFP+ transceivers for 10-GE operation, and SFP28 transceivers for 25-GE operation.The ports are numbered 1 to 4.See Uplink Ports

7

RFID

Supervisor module Radio Frequency Identifier (RFID).Has a built-in, front-facing, non-removable, passive RFID tag that uses Ultra High Frequency (UHF) RFID technology and requires an RFID reader with compatible software. For more information, see Radio Frequency Identification (RFID) on Cisco Catalyst 9000 Family Switches.

8

40-GE or 100-GE uplink ports

The supervisor module has four 40-GE or 100-GE uplink ports.These ports require QSFP transceivers for 40GE operation and QSFP28 transceivers for 100-GE operation.The ports are numbered 5 to 8.Note In the accompanying figure, the ejector lever is not displayed in the redundant supervisor module only for the purpose of displaying the port numbers and LEDs behind it.See Uplink Ports

9

Model Number

Supervisor module model number.

10

Supervisor slot indicator

Bar on the fan tray front panel that indicates the supervisor slots in a chassis.

Product Highlights

  • Unified Access Data Plane (UADP) 3.0sec ASIC with programmable pipeline and template-based allocation of L2/L3, ACL, and QoS entries
  • Intel 2.4 GHz x86 CPU paired with up to 960 GB SATA SSD for on-box container hosting and advanced telemetry
  • Up to 4 non-blocking 100/40 GbE uplinks and 4 non-blocking 25/10 GbE uplinks for seamless backbone connectivity
  • 240 Gbps per-slot switching capacity across all Catalyst 9400 chassis for consistent high throughput
  • High-density line-card support: up to 388 non-blocking 10 GbE SFP+ and 168 non-blocking 25 GbE SFP28 ports
  • Advanced routing and virtualization services including MPLS, VRF-aware LISP, SD-Access fabric, and StackWise Virtual for nonstop forwarding and in-service upgrades

Model Comparison

Parameter

C9400-SUP-1XL

C9400X-SUP-2

C9400X-SUP-2XL

Per-slot fabric

240 Gbps

240 Gbps

480 Gbps

System fabric

1.44 Tbps

2.4 Tbps

9.6 Tbps

Uplinks

8×10 G or 2×40 G

4×25 G

4×100 G + 4×25 G

ASIC

UADP 2.0

UADP 3.0

UADP 3.0sec

MACsec-256

✓

✓

✓

DRAM

16 GB

8 GB

16 GB

Flash

10 GB

20 GB

20 GB

Redundancy

SSO/NSF, ISSU

SSO/NSF, ISSU

SSO/NSF, ISSU

Min IOS XE

16.9.1

17.7.1

17.7.1

Target layer

Access/Dist.

Dist./Core

Core/Agg.

Line-rate (1 : 1) Combinations for C9400X-SUP-2

the following line-cards at true 1 : 1 (zero-oversubscription) in every Catalyst 9400R chassis (C9404R, C9407R, C9410R).

Line-card model

Ports / speed

C9400-LC-48T

48 × 1 G RJ-45 (Data)

C9400-LC-48P

48 × 1 G RJ-45 (PoE+)

C9400-LC-48U

48 × 1 G RJ-45 (UPOE 60 W)

C9400-LC-48H

48 × 1 G RJ-45 (UPOE+ 90 W)

C9400-LC-48S

48 × 1 G SFP

C9400-LC-24S

24 × 1 G SFP

C9400-LC-24XS

24 × 10 G SFP+

What is “Line-rate” and 1 : 1?

Term

Definition

Design Impact

Line-rate

Fabric bandwidth equals the sum of all port speeds.

Zero internal bottlenecks – every port can run at full speed.

Oversubscription

Fabric bandwidth less than total port speed. Expressed as 2 : 1, 4 : 1…

Occasional congestion if many ports burst at once.

1 : 1

No oversubscription (pure line-rate).

Ideal for high-density Wi-Fi 6/6E, 100 G aggregation, low-latency apps.

Specifications

Parameter Specification Parameter Specification
Model C9400X-SUP-2 Description Next-generation supervisor with UADP 3.0sec ASIC and 100 GbE uplinks
ASIC Cisco Unified Access Data Plane (UADP) 3.0sec CPU / Memory / Storage Intel 2.4 GHz x86 | 16 GB DRAM | 20 GB flash | 960 GB SSD
Uplink Ports 4 × 100/40 GbE + 4 × 25/10 GbE (non-blocking) Central Switching Capacity Up to 9.6 Tbps
Per-Slot Bandwidth 240 Gbps per slot (all chassis) Forwarding Rate 3 Bpps (IPv4/IPv6 @ 95-byte)
MAC Address Table 128 000 entries IPv4 / IPv6 Routes 256 000 / 256 000 entries
Flexible NetFlow 384 000 (v4) / 192 000 (v6) flows VLAN IDs 4 096
Switched Virtual Interfaces 1 000 Jumbo Frame Support Up to 9 216 bytes (L2-L4)
Minimum IOS XE Version 17.7.1 or later MTBF 304 308 hours
Dimensions (H × W × D) 1.6 × 14.92 × 14.57 in (4.06 × 37.90 × 37.00 cm) Weight 11.5 lb (5.2 kg)
Operating Temperature 23 – 113 °F (–5 – +45 °C) ≤ 6 000 ft;
23 – 104 °F (–5 – +40 °C) ≤ 10 000 ft		 Storage Temperature –40 – 158 °F (–40 – +70 °C)
Relative Humidity 10 – 95 % (non-condensing) Operating Altitude –60 – 3 000 m

Get More Information

Discover unbeatable prices and fast shipping for the C9400X-SUP-2 Access the detailed C9400X-SUP-2 datasheet and ensure you’re getting the best deal with our reliable delivery service. Need assistance? Our free live chat support is here to help. For more information about the product and pricing, contact us via Live chat or email us at [email protected]

Quality Certifications

Customer Reviews

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    Indiana Jones
    Posted on 15/07/2025
    Verified Buyer
    5.0

    It belongs in a rack! And it got here safely.

    James Bond
    Posted on 22/05/2025
    Verified Buyer
    5.0

    Service was impeccable. Delivered with speed.

    Purchasing
    Posted on 08/01/2025
    Verified Buyer
    5.0

    Consistent service. We buy from you regularly.

    Madden Rivera
    Posted on 23/04/2024
    Verified Buyer
    5.0

    Quick shipping and quality Cisco part. Works as expected.

    Annie Long
    Posted on 17/03/2024
    Verified Buyer
    5.0

    Supervisor 2 is a powerful upgrade for our C9400X. Performance boost was clear.

Questions & Answers

  • What is the initial troubleshooting for a SUP-2 that won’t start?

    Check power and slot, ensure proper seating, and observe status LEDs. Use console for POST errors or system messages.

  • Which mounting collars are included with the SUP-2?

    SUP-2 comes with rack-mount brackets, installation screws, console cable, and an ESD strap.

  • What’s the difference in uplink density between SUP-2 and SUP-1-XL?

    SUP-2 supports more uplinks and higher total bandwidth than SUP-1-XL, depending on line card configuration.

  • Is there an OEM option compatible with SUP-2?

    Only Cisco certified supervisors are officially supported in C9400X chassis; third-party options are not recommended.

  • What rack locations typically host the SUP-2 in a campus core?

    Usually installed in center or lower slots of core switch racks for optimal airflow and access.

  • Which diagnostic LEDs illuminate when SUP-2 has a boot error?

    Amber/red supervisor LEDs indicate boot failure or hardware fault; consult manual for interpretation.

  • How do I hot-swap a SUP-2 without powering down the chassis?

    If running dual supervisors, switch active/standby, remove the standby module, and insert new SUP-2.

  • Which AC adapters are certified for the Catalyst SUP-2?

    Use only Cisco approved AC adapters listed in the SUP-2 hardware installation guide for power reliability.

  • What are the altitude guidelines for SUP-2 installation?

    SUP-2 is rated up to 6,000 feet (1,800 m) at normal temperatures; reduce max temperature above that.

  • How do I load a new IOS image onto SUP-2?

    Copy image to bootflash, set boot variable, and reload. Confirm MD5 checksum before use.

  • Can SUP-2 be used as a backup engine for SUP-2XL?

    Yes, but must run compatible IOS XE and may have limited features compared to SUP-2XL.

  • What accessory kit ships with the Catalyst SUP-2?

    Mounting ears, screws, cable management pieces, and console cable are standard.

  • How can I reset the SUP-2 to out-of-box state?

    Connect to console, enter 'write erase', reload, and reconfigure initial settings.

  • What monthly maintenance prevents SUP-2 failures?

    Check logs, update firmware, clean airways, verify temperature, and test failover if dual supervisors are installed.

  • Does SUP-2 support SD-Access data plane features?

    Yes, SUP-2 supports SD-Access, micro-segmentation, and related Cisco DNA features with appropriate licensing.

  • Which show commands reveal SUP-2 memory usage?

    Use 'show processes memory', 'show platform', and 'show version' for hardware and memory status.

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