How many IPsec tunnels and what throughput does C9300X-24Y-A support?

C9300X-24Y-A supports 128 IPsec tunnels at first release, with 25 new tunnels per second, per the Catalyst 9300 data sheet. Throughput is up to 100 Gbps with esp-gcm-128 or esp-gcm-256, and up to 15G with esp-aes plus esp-sha-hmac. The tunnels also need the HSECK9 authorization code.

Is the HSECK9 code on C9300X-24Y-A a one-time install?

Yes. HSECK9 is a one-time install that persists across reloads and config erase. It is a Smart Licensing authorization code (SLAC) obtained in CSSM, and it is available for the Catalyst 9300X, 9500X and 9600X. Without it IPsec cannot be turned on, even though C9300X-24Y-A already runs Network Advantage.

Which MACsec key length can C9300X-24Y-A use on its fiber links?

C9300X-24Y-A can use 256-bit MACsec, which requires Network Advantage. The 128-bit mode needs only Network Essentials, so on this model the license tier decides the key length. IPsec is a separate feature on the same hardware and needs the HSECK9 authorization code.

How many SVIs, PVST instances and routed ports does C9300X-24Y-A support?

C9300X-24Y-A supports 1000 SVIs and 300 PVST instances, with 13,000 STP virtual ports. A stack of these switches holds 448 routed ports in total. These limits come from the Catalyst 9300 data sheet scale table for the Catalyst 9300X group, so plan the VLAN design and spanning-tree load against them.

How is the 1 Tbps of StackWise-1T on C9300X-24Y-A divided?

StackWise-1T on C9300X-24Y-A uses 6 rings of 90 Gbps each, which gives 540G in each direction. A stack holds up to 8 members. The ring stays at that speed when every member is a Catalyst 9300X, including the 25G fiber models, and drops to StackWise-480 when a Catalyst 9300 joins.

How are the 24 SFP28 ports and the buffer of C9300X-24Y-A organized?

C9300X-24Y-A is a dual-ASIC switch with 24 SFP28 ports in four cages of 6. Each ASIC has its own 16MB packet buffer, which makes 32 MB in total. The CPU is an x86 2.4GHz quad-core with 16GB of DRAM, per the Catalyst 9300 block diagrams.

What input power does the default PWR-C1-715WAC-P on C9300X-24Y-A need?

The PWR-C1-715WAC-P accepts 100-240 VAC at 47-63 Hz and 10-5A through an IEC 320-C16 inlet with a 15A cord, per the Catalyst 9300 hardware installation guide technical specifications. It is rated at 2440 BTU/hr of heat output. Select the cord type for the destination country at order time.

C9300X-24Y-A – 24x25G/10G/1G SFP28 Ports – Modular Uplink – Network Advantage

Name: C9300X-24Y-A - Cisco 24-Port 1G/10G/25G SFP28 Fiber Switch
Brand: Cisco
SKU: C9300X-24Y-A
Price: 9698.70 USD
Availability: InStock
Rating: 5 (11 reviews)

Brand: Cisco Category: Catalyst 9300 Switches Availability:

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Model: C9300X-24Y-A

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Rated 5 out of 5 based on 11 customer ratings

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C9300X-24Y-A Description

The C9300X-24Y-A is a Cisco Catalyst 9300X Series stackable fiber switch for aggregation points that need Network Advantage routing and segmentation. The switch carries 24 SFP28 ports at 25G, 10G or 1G with no PoE, a modular uplink slot that accepts up to four 100G ports, and 2,000 Gbps of switching capacity under Network Advantage. Hardware IPsec at up to 100G also runs on the switch once an HSEC key and an Advantage subscription are in place.

Quick Specs

Parameter	Specification
Product ID	C9300X-24Y-A
Downlink ports	24 x 25G/10G/1G SFP28
PoE	Not a PoE switch (data only)
Uplinks	Modular uplink slot for C9300X-NM modules, including the 4 x 100G C9300X-NM-4C
Network license	Network Advantage
Default power supply	PWR-C1-715WAC-P (715W AC)
Power supply slots	2; second supply optional for redundancy
Switching capacity	2,000 Gbps (3,000 Gbps with stacking)
Forwarding rate	1,488 Mpps (2,232 Mpps with stacking)
Stacking	StackWise-1T at 1 Tbps, up to 8 members
Hardware-based IPsec	Up to 100G with an HSEC key
Minimum software release	Cisco IOS XE Bengaluru 17.5.1

Product Performance

Switching Capacity

Forwarding Rate

Hardware-Based IPsec With HSEC Key

Key Features

Routing Past The 1,000-Route Ceiling

Network Advantage removes the 1,000-route OSPF limit and adds BGP, IS-IS and HSRP. The same license brings VRF, VXLAN, LISP, Cisco TrustSec and MPLS for segmentation, plus MACsec-256 on the fiber links.

100G IPsec Between Sites

Encryption runs in hardware on the UADP 2.0sec ASIC at up to 100G with AES-256. Two things unlock it: a separately ordered HSEC key and the Advantage tier of the Cisco Catalyst or Cisco DNA subscription. With both in place, tunnels end on the switch itself.

Maintenance Without Rebuilding The Stack

Planned changes get the high-availability set of Network Advantage: NSF, graceful insertion and removal, extended fast software upgrade (xFSU) and CLI software patching. These matter most on a switch that many downstream closets depend on.

Applications Hosted On The Switch

Container and VM hosting comes with the Advantage subscription tier. The platform backs it with 16 GB of DRAM, Intel QuickAssist Technology and two 10G AppGig ports, and a 120 GB or 240 GB USB 3.0 SSD adds local storage. The ASAc virtual firewall is one supported application.

Four 100G Uplinks From One Module

C9300X-NM-4C, with four 100G/40G QSFP ports, fits just three Catalyst 9300X models, and this 24-port SFP28 switch is one of them. That module needs Cisco IOS XE Bengaluru 17.6.1 or later. C9300X-NM-2C, C9300X-NM-8Y and C9300X-NM-8M fit the same slot from 17.5.1.

Stacks Built From Catalyst 9300X Members

Eight Catalyst 9300X switches can share one StackWise-1T ring at 1 Tbps. A non-X Catalyst 9300 member pulls the whole stack down to StackWise-480 speed, and higher-scale C9300-24UB, C9300-24UXB and C9300-48UB switches are excluded entirely. All members must hold the same license level.

Application Scenarios

Encrypted Links Between Campus Buildings

Where campus buildings connect over 25G fiber, the switch terminates those runs on its SFP28 ports and carries site-to-site traffic through hardware IPsec tunnels once the HSEC key is installed.

SD-Access Fabric On A Fiber Floor

In an SD-Access campus, fiber-attached access switches and servers connect to this switch at the fabric edge, and the Advantage tier supplies the policy-based segmentation the fabric needs.

Multi-Tenant Building Aggregation

A shared office building brings each tenant’s closet uplinks onto the SFP28 ports and keeps every tenant in its own VRF or VXLAN segment on a single switch.

Product Comparison

Parameter	C9300X-24Y-A	C9300X-24Y-E	C9300X-12Y-A	C9300-24S-A
Total 10/100/1000, Multigigabit copper or SFP fiber	24 ports 25G/10G/1G SFP28	24 ports 25G/10G/1G SFP28	12 ports 25G/10G/1G SFP28	24 ports 1G SFP
Available PoE with default power supply	No PoE	No PoE	No PoE	No PoE
Uplink configuration	Modular uplinks, C9300X-NM modules including C9300X-NM-4C	Modular uplinks, C9300X-NM modules including C9300X-NM-4C	Modular uplinks, C9300X-NM modules except C9300X-NM-4C	Modular uplinks, C9300-NM modules
Network license	Network Advantage	Network Essentials	Network Advantage	Network Advantage
Stacking bandwidth support	StackWise-1T, 1 Tbps	StackWise-1T, 1 Tbps	StackWise-1T, 1 Tbps	StackWise-480, 480 Gbps
Switching capacity	2,000 Gbps	2,000 Gbps	1,000 Gbps	208 Gbps
Switching capacity with stacking	3,000 Gbps	3,000 Gbps	2,000 Gbps	688 Gbps

C9300X-24Y-A and C9300X-24Y-E are the same 24-port SFP28 switch, separated by license: Network Advantage on the -A adds BGP, VXLAN, MPLS, MACsec-256, hardware IPsec and app hosting. A fiber aggregation point that runs Layer 2 and OSPF within 1,000 routes can drop to C9300X-24Y-E without losing switching capacity, and move back up later through C9300-LIC=, which cannot ride on the original order. Twelve SFP28 ports are enough for C9300X-12Y-A, at 1,000 Gbps, but the 4 x 100G C9300X-NM-4C does not fit it. C9300-24S-A gives up 25G entirely: 1G SFP only, 208 Gbps, C9300-NM modules and StackWise-480.

Ordering Checklist

Subscription tier: Order a 25G-fiber Advantage term of 3, 5 or 7 years, such as C9300-DNA-L-A-5Y for Cisco DNA or C9300-DNX-A-24Y-5Y for Cisco Catalyst. New orders need a subscription at the same tier as the network license.
HSEC key: Add the HSEC key when IPsec tunnels will end on the switch. Hardware IPsec stays unavailable without it, even on the Advantage tier.
Uplink module: The configurator adds C9300X-NM-2C; keep it, change it to C9300X-NM-4C, C9300X-NM-8Y or C9300X-NM-8M, or select C9300X-NM-NONE. A slot left without a module needs a blank, and C9300X-NM-4C needs Cisco IOS XE Bengaluru 17.6.1 or later.
Second power supply: A second PWR-C1-715WAC-P is selected by default and C9300-SPS-NONE removes it. Removing it leaves the switch without power supply redundancy.
Stack cables: A 3 m StackWise cable and a 150 cm StackPower cable come with each switch unless C9300X-STACK-NONE and C9300-SPWR-NONE are selected. Unstacked switches otherwise arrive with cables they do not use.
Power cords: Select the cord type for the destination country, because the configurator defaults to North American cords and two ship with each switch.

Optional Add-ons

Model	Description
C9300X-NM-2C	Catalyst 9300X network module with 2 x 100G/40G QSFP ports
C9300X-NM-4C	Catalyst 9300X network module with 4 x 100G/40G QSFP ports; supported on this switch from Cisco IOS XE Bengaluru 17.6.1
C9300X-NM-8Y	Catalyst 9300X network module with 8 x 25G/10G/1G SFP ports
C9300X-NM-8M	Catalyst 9300X network module with 8 x 10G/1G Multigigabit copper ports
PWR-C1-715WAC-P=	Spare 715W AC Platinum-rated power supply, matching the default supply
PWR-C1-1100WAC-P=	Spare 1100W AC Platinum-rated power supply
STACK-T1-50CM=	StackWise-480/1T stacking cable, 50 cm
STACK-T1-1M=	StackWise-480/1T stacking cable, 1 m
STACK-T1-3M=	StackWise-480/1T stacking cable, 3 m
CAB-SPWR-30CM=	StackPower cable, 30 cm
CAB-SPWR-150CM=	StackPower cable, 150 cm
SSD-120G	Pluggable USB 3.0 SSD storage, 120 GB
SSD-240G	Pluggable USB 3.0 SSD storage, 240 GB
FAN-T2=	Spare fan module

C9300X-24Y Switch Front Panel

1	Beacon LED (UID button)	5	USB Type A storage port
2	Mode button	6	USB Type C port
3	Status LEDs	7	1 GE/25 GE/25 GE SFP28 ports
4	USB mini-Type B (console) port	8	Uplink network module slots

Rear Panel of a Cisco Catalyst 9300X Series Switch

1	USB3.0–SSD port	6	Fan modules
2	Ground connectors	7	StackPower+ connectors
3	BEACON LED	8	Power supply modules
4	CONSOLE (RJ-45 console port)	9	StackWise-1T port connectors
5	MGMT (RJ-45 management port)	–	–

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 9300 Series switch with optional network module¹ (power supply and fan modules not shown)	9	Eight number-8 Phillips flat-head screws
2	AC power cord	10	Cable guide
3	Product documentation and compliance document	11	M4.0 x 20mm Phillips pan-head screw
4	Four rubber mounting feet	12	(Optional) RJ-45 console cable
5	Ground lug screw and ring terminal	13	(Optional) USB console cable
6	Two 19-inch mounting brackets	14	(Optional) StackWise-480/1T cable (0.5-meter, 1-meter, or 3-meter)
7	Four number-12 pan-head screws	15	(Optional) StackPower cable (0.3-meter or 1.5-meter)
8	Four number-10 pan-head screws	16	(Optional) StackWise-320 cable

Specifications

Parameter	Specification	Parameter	Specification
Product ID	C9300X-24Y-A	Network license	Network Advantage, perpetual and included with the hardware
Downlink ports	24 x 25G/10G/1G SFP28	PoE	Not a PoE switch (data only)
SFP transceiver connector	LC fiber connectors	Uplink slot	Modular slot for C9300X-NM network modules; no module in the default hardware configuration
Supported network modules	C9300X-NM-8M, C9300X-NM-8Y, C9300X-NM-2C, C9300X-NM-4C	Network module slot rule	Operate with a network module or a blank module installed
Management port	10/100/1000 RJ-45	Console port	RJ-45 console port and USB mini-Type B console port
USB port	USB Type A and USB Type C, USB 3.0, 900 mA at 5 V	SSD storage	Pluggable 120 GB or 240 GB USB 3.0 SSD module
Switching capacity	2,000 Gbps	Switching capacity with stacking	3,000 Gbps
Forwarding rate	1,488 Mpps	Forwarding rate with stacking	2,232 Mpps
Packet buffer	32 MB	Flexible NetFlow entries	128,000 flows
DRAM	16 GB	Flash	16 GB
Hardware-based IPsec	Up to 100G, AES-256; requires an HSEC key and the Cisco Catalyst or Cisco DNA Advantage tier	App hosting capacity	2x the hosting resources of Catalyst 9300 models, Intel QuickAssist Technology, 2x 10G AppGig ports
MAC addresses	32,000	IPv4 routes	39,000 (24,000 direct routes, 15,000 indirect routes)
IPv6 routes	19,500	Multicast routes	8,000
QoS entries	4,000	ACL entries	8,000
VLAN IDs	4094	PVST instances	300
STP virtual ports (PVST/MST)	13,000	Switched virtual interfaces	1,000
Jumbo frames	9198 bytes	Total routed ports per stack	448
Stacking	StackWise-1T, 1 Tbps, up to 8 members	Mixed stacking	StackWise-480 speeds with standard Catalyst 9300 (non-X) members; not supported with higher-scale C9300-24UB, C9300-24UXB or C9300-48UB; all members share one license level
StackPower	StackPower+; up to 4 switches per ring, 8 with XPS-2200	Network Advantage feature set	BGP, EIGRP, HSRP, IS-IS, OSPF; VRF, VXLAN, LISP, Cisco TrustSec, SGT, MPLS, mVPN; NETCONF, RESTCONF, gRPC, YANG; NSF, GIR, xFSU; AVB, PTP; MACsec-256
Default power supply	PWR-C1-715WAC-P (715W AC, Platinum-rated)	Power supply slots	2; dual redundant power supplies supported
Secondary power supply options	350W, 715W, 1100W or 1900W AC; no PoE in any combination	Default supply input voltage	100 to 240 VAC, 47 to 63 Hz
Default supply input current	10-5A	Default supply inlet	IEC 320-C16
Default supply total output BTU	2,440 BTU/hr	Default supply power cord rating	15A
Measured power at full traffic, no network module (115 VAC)	221.2W	Weighted average power, no network module (115 VAC)	198.2W
Measured power with no link, no network module (115 VAC)	142W	Measured power at full traffic with C9300X-NM-8M (115 VAC)	247.7W
Measured power at full traffic with C9300X-NM-2C (115 VAC)	247.7W	Measured power at full traffic with C9300X-NM-8Y (115 VAC)	248.3W
Measured power at full traffic with C9300X-NM-4C (115 VAC)	275W	Fan modules	Three field-replaceable fans with N+1 redundancy
Fan module	FAN-T2=	Fan module airflow	20 cfm
Airflow	Front-to-rear and side-to-rear	Operating temperature	-5°C to 45°C (23°F to 113°F)
Minimum cold-start temperature	0°C (32°F)	Storage temperature	-40°C to 70°C (-40°F to 158°F)
Operating humidity	5% to 90%, noncondensing	Operating altitude	Up to 10,000 ft (3000 m)
Storage altitude	Up to 15,000 ft (4500 m)	Dimensions, chassis only (H x W x D)	1.73 x 17.5 x 17.6 in (4.4 x 44.5 x 44.7 cm)
Dimensions with default power supply (H x W x D)	1.73 x 17.5 x 19.2 in (4.4 x 44.5 x 48.8 cm)	Dimensions with 1100W power supply (H x W x D)	1.73 x 17.5 x 20.7 in (4.4 x 44.5 x 52.6 cm)
Weight with default power supply	7.35 kg (16.2 lb)	MTBF	249,350 hours
Safety certifications	UL 60950-1, CAN/CSA-C22.2 No. 60950-1, EN 60950-1, IEC 60950-1, AS/NZS 60950.1	EMC certifications	47 CFR Part 15, EN 55032 Class A, CISPR 32 Class A, EN 55035, CISPR 35, EN 300 386, EN 61000-3-2, EN 61000-3-3, ICES-003 Class A, CNS13438, KN32, KN35, TCVN 7189 Class A, TCVN 7317
Environmental compliance	RoHS 5	IEEE standards	802.1D, 802.1p, 802.1Q, 802.1s, 802.1w, 802.1x, 802.3, 802.3u, 802.3ab, 802.3z, 802.3ad, 802.3ae, 802.3an, 802.3bz
Management standards	SNMPv1, SNMPv2c, SNMPv3, RMON I and II	Minimum software release	Cisco IOS XE Bengaluru 17.5.1
Minimum release with C9300X-NM-4C	Cisco IOS XE Bengaluru 17.6.1

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Questions & Answers

How many IPsec tunnels and what throughput does C9300X-24Y-A support?
C9300X-24Y-A supports 128 IPsec tunnels at first release, with 25 new tunnels per second, per the Catalyst 9300 data sheet. Throughput is up to 100 Gbps with esp-gcm-128 or esp-gcm-256, and up to 15G with esp-aes plus esp-sha-hmac. The tunnels also need the HSECK9 authorization code.
Is the HSECK9 code on C9300X-24Y-A a one-time install?
Yes. HSECK9 is a one-time install that persists across reloads and config erase. It is a Smart Licensing authorization code (SLAC) obtained in CSSM, and it is available for the Catalyst 9300X, 9500X and 9600X. Without it IPsec cannot be turned on, even though C9300X-24Y-A already runs Network Advantage.
Which MACsec key length can C9300X-24Y-A use on its fiber links?
C9300X-24Y-A can use 256-bit MACsec, which requires Network Advantage. The 128-bit mode needs only Network Essentials, so on this model the license tier decides the key length. IPsec is a separate feature on the same hardware and needs the HSECK9 authorization code.
How many SVIs, PVST instances and routed ports does C9300X-24Y-A support?
C9300X-24Y-A supports 1000 SVIs and 300 PVST instances, with 13,000 STP virtual ports. A stack of these switches holds 448 routed ports in total. These limits come from the Catalyst 9300 data sheet scale table for the Catalyst 9300X group, so plan the VLAN design and spanning-tree load against them.
How is the 1 Tbps of StackWise-1T on C9300X-24Y-A divided?
StackWise-1T on C9300X-24Y-A uses 6 rings of 90 Gbps each, which gives 540G in each direction. A stack holds up to 8 members. The ring stays at that speed when every member is a Catalyst 9300X, including the 25G fiber models, and drops to StackWise-480 when a Catalyst 9300 joins.
How are the 24 SFP28 ports and the buffer of C9300X-24Y-A organized?
C9300X-24Y-A is a dual-ASIC switch with 24 SFP28 ports in four cages of 6. Each ASIC has its own 16MB packet buffer, which makes 32 MB in total. The CPU is an x86 2.4GHz quad-core with 16GB of DRAM, per the Catalyst 9300 block diagrams.
What input power does the default PWR-C1-715WAC-P on C9300X-24Y-A need?
The PWR-C1-715WAC-P accepts 100-240 VAC at 47-63 Hz and 10-5A through an IEC 320-C16 inlet with a 15A cord, per the Catalyst 9300 hardware installation guide technical specifications. It is rated at 2440 BTU/hr of heat output. Select the cord type for the destination country at order time.

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C9300X-24Y-A – 24x25G/10G/1G SFP28 Ports – Modular Uplink – Network Advantage

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C9300X-24Y-A Description

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C9300X-24Y Switch Front Panel

Rear Panel of a Cisco Catalyst 9300X Series Switch

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How many IPsec tunnels and what throughput does C9300X-24Y-A support?

Is the HSECK9 code on C9300X-24Y-A a one-time install?

Which MACsec key length can C9300X-24Y-A use on its fiber links?

How many SVIs, PVST instances and routed ports does C9300X-24Y-A support?

How is the 1 Tbps of StackWise-1T on C9300X-24Y-A divided?

How are the 24 SFP28 ports and the buffer of C9300X-24Y-A organized?

What input power does the default PWR-C1-715WAC-P on C9300X-24Y-A need?

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