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Cisco ISR4451-X 1RU Router – 1 Gbps, 4×1 G LAN, 2 SM-X Slots

Name: Cisco ISR4451-X 1RU Router – 1 Gbps, 4×1 G LAN, 2 SM-X Slots
Brand: Network-Switch & Cisco
SKU: NS-ISR4451-XK9
Price: 11719.0 USD
Availability: InStock
Rating: 3.75 (4 reviews)

modeli:

ISR4451-X/K9

Detay:

Cisco 4451-X Integrated Services Router, offering throughput up to 2 Gbps, equipped with 3 enhanced service module slots and 3 NIM slots, ideal for large enterprise and data center deployments.

Fiyat:

$11,719.00 USD

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Cisco ISR4451-X Integrated Services Routers

The Cisco ISR4451-X/K9 is the Cisco 4451 Integrated Services Router that supports 2 Enhanced service-module (SM-X) slots and delivers 1 Gbps to 2 Gbps aggregate throughput.

This router is designed to provide robust performance and flexibility for enterprise branch applications. It features 4 onboard WAN or LAN 10/100/1000 ports, including 4 RJ-45-based ports and 4 SFP-based ports for varied network connectivity.

The ISR4451-X supports both data plane and control/services plane DDRM, making it easy for administrators to manage and optimize performance. The router includes 3 NIM (Network Interface Modules) slots and 1 onboard ISC slot, offering expansion options for additional interfaces.

With 2 GB DDRM for data plane (expandable to 2 GB) and 4 GB DDRM for control/services plane (expandable to 16 GB), the ISR4451-X ensures efficient handling of both data and control services.

It also offers 8 GB flash memory (expandable to 32 GB) for ample storage capacity. The router is equipped with internal AC, DC (roadmap), and PoE power supply options, making it highly versatile.

Rack-mountable with a 2 RU form factor, the ISR4451-X is perfect for Cisco Enterprise Branch Routers that require high-performance routing and secure, flexible configurations. Shop Cisco Routers like the ISR4451-X/K9 for enhanced routing capabilities and scalability.

Overview

Recommended modules and accessories

Items	Models	Descriptions
Console and Auxillary Cables	CAB-AUX-RJ45	Cisco CAB-AUX-RJ45 Auxiliary Cable 8ft with RJ45 and DB25M
	CAB-ETH-S-RJ45	Cisco Router Cable CAB-ETH-S-RJ45
	CAB-CONSOLE-RJ45	Cisco CAB-CONSOLE-RJ45 Console Cable 6ft with RJ45 and DB9F
	CAB-CONSOLE-USB	Cisco CAB-CONSOLE-USB Console Cable 6 ft with USB Type A and mini-B
Licenses	L-SL-44-APP-K9	Cisco ISR 4431/4451 AppX license L-SL-44-APP-K9= with WAAS/vWAAS 1300/2500 conns RTU
Network Interface Modules	NIM-1MFT-T1/E1	Cisco Fourth-Generation Multiflex Trunk Voice and WAN network interface module
	NIM-2CE1T1-PRI	Cisco Multiflex Trunk Voice and WAN network interface module
	NIM-4E/M	Analog voice network interface card (ear and mouth)
	NIM-2FXS	Cisco Analog voice network interface card NIM-2FXS
	NIM-2FXS/4FXO	Cisco Analog voice network interface card NIM-2FXS/4FXO
	NIM-8MFT-T1/E1	Cisco Fourth-Generation Multiflex Trunk Voice and WAN network interface module
SFPs for On-Board GE Ports	GLC-SX-MMD	Cisco GLC-SX-MMD 1000BASE-SX SFP transceiver module, MMF, 850nm, DOM
	GLC-LH-SMD	Cisco GLC-LH-SMD 1000BASE-LX/LH SFP transceiver module, MMF/SMF, 1310nm, DOM
	GLC-ZX-SMD	Cisco GLC-ZX-SMD 1000BASE-ZX SFP transceiver module, SMF, 1550nm, DOM

Compare to Similar Items

Technical Specifications	ISR4461/K9	ISR4451-X/K9	ISR4431/K9	ISR4351/K9	ISR4331/K9	ISR4321/K9	ISR4221/K9
Aggregate Throughput	1.5Gbps	1 Gbps to2 Gbps	500 Mbps to1 Gbps	200 Mbps to400 Mbps	100 Mbps to300 Mbps	50 Mbps to100 Mbps	35 Mbps to 75 Mbps
Total onboard WAN or LAN 10/100/1000 ports	4	4	4	3	3	2	2
RJ-45-based ports	4	4	4	3	2	2	2
SFP-based ports	4	4	4	3	2	1	1
Enhanced service-module slots	3	2	0	2	1	0	0
Doublewide service-module slots	2	1 (assumes no singlewide SM-X modules installed)	0	1 (assumes no singlewide SM-X modules installed)	0	0	0
NIM slots	3	3	3	3	2	2	2
OIR (all I/O modules)	Yes	Yes	Yes	Yes	Yes	Yes	No
Onboard ISC slot	1	1	1	1	1	1	No

Specifications

Cisco ISR4451-X/K9 Specifications
Aggregate Throughput	1 Gbps to 2Gbps
Total onboard WAN or LAN 10/100/1000 ports	4
RJ-45-based ports	4
SFP-based ports	4
Enhanced service-module slots	2
Double wide service-module slots	1 (assumes no singlewide SM-X modules installed)
NIM slots	3
OIR (all I/O modules)	Yes
Onboard ISC slot	1
Default memory double-data-rate 3 (DDR3) error-correction-code (ECC) DRAM (Combined control/services/data planes)	NA
Maximum memory DDR3 ECC DRAM (Combined control/services/data planes)	NA
Default memory DDR3 ECC DRAM (data plane)	2 GB
Maximum memory DDR3 ECC DRAM (data plane)	2 GB
Default memory DDR3 ECC DRAM (control/services plane)	4 GB
Maximum memory DDR3 ECC DRAM (control/services plane)	16 GB
Default flash memory	8 GB
Maximum flash memory	32 GB
External USB 2.0 slots (type A)	2
USB console port -type B mini (up to 115.2 kbps)	1
Serial console port - RJ45 (up to 115.2 kbps)	1
Serial auxiliary port - RJ45 (up to 115.2 kbps)	1
Power-supply options	Internal: AC, DC and PoE
Redundant power supply	Internal: AC, DC and PoE
AC input voltage	100 to 240 VAC autoranging
AC input frequency	47 to 63 Hz
AC input current range, AC power supply (maximum)	7.1 to 3.0A
AC input surge current	<50 A
Typical power (no modules) (watts)	158
Maximum power with AC power supply (watts)	450 (no PoE)
Maximum power with PoE power supply (platform only) (watts)	1000 with PoE redundant1450 with PoE boost no redundancy
Maximum endpoint PoE power available from PoE power supply (watts)	500 W with optional redundancy
Maximum endpoint PoE power capacity with PoE boost (watts)	950 W no redundancy

More Details

Quality Certifications

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The Support Contacts

If your Cisco products failed, you must contact your sales representative to verify product failure. If the problem still can't correct by remote support methods i.e. email or phone support, the RMA procedure will issue.

Could be better

These routers work but firmware feels dated. Support resolved issues after some waiting. Hoping for better firmware updates.

Very satisfied with the purchase

Professional service from start to finish. Quick responses, fast shipping, and a smooth payment process.

Funciona bem

QoS consistente e recursos conforme descrito. O frete atrasou um dia, mas a loja avisou. Minor fan noise. Great value for SMB networks.

Average

The routers do the job, though not outstanding. Documentation could be improved and delivery was slow. Not bad, but needs refinement.

Learn More

Sıkça Sorulan Sorular ve Cevaplar

1. Can I connect three ISR4451‑X routers for redundancy?

A: Yes, you can deploy multiple ISR4451‑X routers in redundant configurations for high availability, provided all units are configured consistently to support failover.

2. What is the system throughput of the ISR4451‑X/K9?

A: The ISR4451‑X/K9 delivers 1–2 Gbps of aggregate throughput with services enabled.

3. How many WAN/LAN ports does the ISR4451‑X/K9 have?

A: It includes four integrated Gigabit Ethernet (RJ‑45 or SFP) WAN/LAN ports, plus a dedicated Gigabit management port .

4. What security features are built into the ISR4451‑X/K9?

A: It offers hardware-accelerated firewall, comprehensive encryption, and full VPN support via Cisco IOS XE Security licenses .

5. Can the ISR4451‑X/K9 handle voice applications?

A: Yes, it supports voice services with the onboard ISC slot and PVDM4 modules, enabling unified communications deployments .

6. What CPU does the ISR4451‑X/K9 use?

A: It is powered by a high-performance multi-core processor, with separate cores dedicated to control, data, and services planes .

7. Does the ISR4451‑X/K9 support WAN optimization?

A: Yes, it supports Cisco WAAS for accelerated WAN performance and efficient cloud/application traffic handling .

8. Are there service module slots in the ISR4451‑X/K9?

A: Yes, the router includes two SM‑X (service module) slots, three NIM slots, and one onboard ISC slot for high-density voice or WAN modules .

9. How does ISR4451‑X/K9 support application visibility and control?

A: It uses Cisco AVC, NBAR, and IP SLA features within IOS XE to monitor, prioritize, and control application traffic efficiently .

10. What are the benefits of Intelligent WAN on the ISR4451‑X/K9?

A: Intelligent WAN combines path selection, QoS, and resilient connectivity to optimize and secure hybrid branch office environments.

11. Are there alternative products similar to the ISR4451‑X/K9?

A: Yes, alternative models include the ISR4431 (mid-range) and ISR4351/4331 (lower-capacity) routers, offering varying throughput and modular capabilities.

12. How cost-effective is the ISR4451‑X/K9?

A: It provides excellent value with 1–2 Gbps throughput, integrated security, voice, and application services in a single, scalable platform .

13. What are the key features of the ISR4451‑X/K9?

A: Key features include 4 WAN/LAN ports, 4 SFP ports, a 10-core CPU, support for security, voice, WAAS, intelligent WAN, OnePK, AVC, modular slots, and optional PoE capabilities.

14. What application scenarios suit the ISR4451‑X/K9?

A: It's ideal for large or high-end branch offices requiring secure, high-performance routing with integrated services like voice, security, and WAN optimization.

15. How do I install the ISR4451‑X/K9?

A: Mount the router in a rack, connect power, WAN, LAN, and console ports, then configure via console or web interface following the installation guide.

16. Does the ISR4451‑X/K9 require regular upgrades?

A: Yes, periodic firmware and software updates are recommended to ensure optimal security and feature support.

17. What accessories are available for the ISR4451‑X/K9?

A: Available accessories include rack-mount kits, additional power supplies (AC/DC/PoE), interface modules (NIM, SM‑X, ISC), and USB console cables .

18. How does the ISR4451‑X/K9 compare to similar products?

A: With its 10‑core CPU, modular architecture, and integrated services, it's superior in throughput and feature flexibility compared to competitors in its class .

19. What are common troubleshooting steps for the ISR4451‑X/K9?

A: Check physical connections, verify configurations, monitor system logs, and use Cisco CLI tools—consult Cisco guides or support if needed.

20. How do I configure the ISR4451‑X/K9 for initial deployment?

A: Use the console port to set hostnames, IP addressing, security policies, and interface assignments per configuration examples in the setup guide.

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