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Cisco ISR4321 1RU Router – 50 Mbps, 2×1 G LAN Ports, 2 SM Slots

Name: Cisco ISR4321 1RU Router – 50 Mbps, 2×1 G LAN Ports, 2 SM Slots
Brand: Network-Switch & Cisco
SKU: NS-ISR4321K9
Price: 1128.0 USD
Availability: InStock
Rating: 5.0 (1 reviews)

模型：

ISR-4321/K9

細節：

Cisco 4321 Integrated Services Router, similar to ISR4321-V/K9 but without the AX license, suitable for basic branch routing needs.

價格：

$1,128.00 USD

可用性：

有存貨預購缺貨

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New

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Cisco ISR4321 Integrated Services Routers

The Cisco ISR4321/K9 Integrated Services Router is designed to deliver advanced services for small enterprise branch environments. It offers 50 Mbps throughput by default, with the flexibility to scale up to 100 Mbps using the pay-as-you-grow model and purchasing the FL-4320-PERF-K9 licenses.

This router includes 2 onboard WAN or LAN 10/100/1000 ports, with 2 RJ-45-based ports and 1 SFP-based port, providing versatile connectivity options. The ISR4321-K9 also features 2 NIM (Network Interface Modules) slots and 1 onboard ISC slot for expansion.

With 4 GB of RAM (expandable to 8 GB) and 4 GB flash memory (expandable to 8 GB), this router offers ample memory for handling demanding applications. Additionally, the router supports external AC and PoE power supply options and is rack-mountable with a 1RU form factor.

Shop Cisco Routers like the ISR4321-K9 for a reliable solution in Cisco Enterprise Branch Routers, featuring service module support, network interface module support, ISC slots, and SFP-based connectivity in a rack-mountable design.

Overview

Recommended modules and accessories

Items	Models	Description
License	L-SL-4320-APP-K9	Cisco AppX license L-SL-4320-APP-K9= with 200 conns/ISRWAAS or 750 conns/vWAAS
Console and Auxillary Cables	CAB-CONSOLE-RJ45	Cisco CAB-CONSOLE-RJ45 Console Cable 6ft with RJ45 and DB9F
Console and Auxillary Cables	CAB-CONSOLE-USB	Cisco CAB-CONSOLE-USB Console Cable 6 ft with USB Type A and mini-B
Network Interface Modules	NIM-2CE1T1-PRI	Cisco Multiflex Trunk Voice and WAN network interface module
	NIM-1MFT-T1/E1	Cisco Fourth-Generation 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
SFPs for On-Board GE Ports	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
	GLC-SX-MMD	Cisco GLC-SX-MMD 1000BASE-SX SFP transceiver module, MMF, 850nm, 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

ISR4321/K9 Specifications
Aggregate Throughput (Default)	50 Mbps
Aggregate Throughput (Performance License)	100 Mbps
Aggregate CEF Only Throughput (Boost License)	1.5Gbps
Total onboard WAN or LAN 10/100/1000 ports	2
Total onboard WAN or LAN 10Gbps ports	-
RJ-45-based ports	2
SFP-based ports	1
Enhanced service-module slots	0
Doublewide service-module slots	0
NIM slots	2
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)	4 GB
Maximum memory DDR3 ECC DRAM (Combined control/services/data planes)	8 GB
Default flash memory	4 GB
Maximum flash memory	8 GB
External USB 2.0 slots (type A)	1
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	External: AC and PoE
Dimensions (H x W x D)	1.75 x 14.55 x 11.60 in (44.55 x 369.57 x 294.64 mm)
External Power Supply Dimensions (H x W x D)	2.95 x 1.18 x 6.10 in (75 x 30 x 155 mm)
Shipping Box Dimensions (H x W x D)	7.0 x 21.5 x 16.125 in (177.8 x 546.1 x 409.6 mm)
Rack height	1 Rack Unit (1RU)
Wall-mount	Mounting holes under chassis
Packaging Weight	2.2 lb (1 kg)
Airflow	Right I/O side to Left I/O side
MTBF (Hours)	593270
Temperature	32 to 104°F(0 to 40°C)
Altitude(China)	0 – 6,560 ft.(0 – 2,000 m)
Altitude(Rest of the world)	0 – 10,000 ft.(0 – 3,050 m)
Relative humidity	5% to 85%
Short-term humidity	5% to 90%, not to exceed 0.024 kg water/kg of dry air
Acoustics:Sound pressure (Typical/maximum)	24.2/51.9 dBA
Acoustics: Sound power (Typical/maximum)	31.9/59.9 dBA

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常見問題與解答

Q1: What software options are available for the Cisco ISR4321/K9?

A: The Cisco ISR4321/K9 uses a single Cisco IOS XE universal software image. This universal image includes all features and functionalities. Specific functions are enabled through Cisco Software Activation Licenses, streamlining software management across different network deployments.

Q2: What type of Cisco IOS software runs on the ISR4321/K9?

A: The ISR4321/K9 operates on Cisco IOS XE Software, consistent with Cisco's ASR 1000 series, ensuring feature-rich capabilities and ongoing updates.

Q3: Are the PoE interfaces on the ISR4321/K9 PoE+ capable?

A: Yes, PoE+ is supported on the SM-X Ethernet switch modules and FPGE ports, providing enhanced power capabilities for connected devices.

Q4: What type of power cables are used with the ISR4321/K9?

A: The ISR4321/K9 uses standard IEC C13 connectors for its power supplies, including PoE power supplies. No special cords are required, which simplifies installation.

Q5: What kind of backplane technology does the ISR4321/K9 use?

A: The ISR4321/K9 utilizes a multigigabit fabric (MGF) backplane, providing efficient, high-speed Layer 2 connectivity between modules.

Q6: Does the ISR4321/K9 support MDI crossover (MDI-X)?

A: Yes, MDI crossover (MDI-X) is supported on the ISR4321/K9’s onboard RJ-45 Ethernet interfaces, eliminating the need for crossover cables.

Q7: Do the ISR4321/K9’s front-panel Gigabit Ethernet ports support auto-failover?

A: Yes, auto-failover is supported on Gigabit Ethernet ports with both RJ-45 and SFP connections. If one connection type fails, the other becomes active seamlessly.

Q8: Can memory DIMMs of different sizes be used in the ISR4321/K9?

A: No, the ISR4321/K9 requires DIMMs of equal size for memory slots to function correctly due to memory interleaving.

Q9: How many DIMM slots does the ISR4321/K9 have?

A: The ISR4321/K9 router is equipped with one DIMM slot.

Q10: What memory upgrade options are available for the ISR4321/K9?

A: The ISR4321/K9 has 4 GB control-plane memory by default, upgradeable up to 16 GB depending on the platform. The 2 GB data-plane memory is fixed and currently not upgradeable.

Q11: What is the ISR4321/K9 router?

A: The ISR4321/K9 is a Cisco Integrated Services Router (ISR) designed for small to medium-sized businesses, providing secure, high-performance routing and application services for branch offices.

Q12: What connectivity options does the ISR4321/K9 support?

A: The ISR4321/K9 supports Ethernet, Wi-Fi, and cellular connectivity, ensuring flexible and reliable network access in diverse environments.

Q13: What security features does the ISR4321/K9 offer?

A: Security features on the ISR4321/K9 include firewall protection, VPN support, and intrusion prevention to safeguard network data and operations.

Q14: Which application services are supported by the ISR4321/K9?

A: The ISR4321/K9 supports advanced application services like Quality of Service (QoS), Network Address Translation (NAT), and integrated voice and video solutions.

Q15: Is the ISR4321/K9 easy to deploy and manage?

A: Yes, the ISR4321/K9 simplifies deployment and management with plug-and-play features, a user-friendly web interface, and remote management options for efficient administration.

Q16: How cost-effective is the ISR4321/K9?

A: The ISR4321/K9 offers an excellent balance of performance and features at a competitive price point, making it cost-effective for small to medium-sized businesses.

Q17: What are the main features of the ISR4321/K9?

A: The ISR4321/K9 includes a multi-core CPU, throughput of 50-100 Mbps, 2 WAN/LAN ports, 1 SFP port, and support for Security, Voice, WAAS, Intelligent WAN, OnePK, and AVC services.

Q18: What application scenarios are suitable for the ISR4321/K9?

A: The ISR4321/K9 is suitable for small to medium-sized enterprise branch offices requiring reliable routing, voice capabilities, and secure WAN connectivity.

Q19: How is the ISR4321/K9 installed?

A: Installation involves mounting the router, connecting WAN/LAN ports, and configuring the router via command-line or web interface following Cisco's setup instructions.

Q20: Does the ISR4321/K9 require regular software upgrades?

A: Regular firmware and software updates are recommended to maintain optimal performance, security enhancements, and new feature integrations.

Q21: Are there alternative routers to the ISR4321/K9?

A: Yes, alternatives include the Cisco ISR4331 for higher throughput requirements and the ISR4221 for more budget-conscious deployments with slightly reduced features.

Q22: What troubleshooting steps are common for the ISR4321/K9?

A: Common troubleshooting involves checking cable connections, verifying configurations, rebooting the router, and updating firmware as necessary.

Q23: What accessories are available for the ISR4321/K9?

A: Accessories include power supplies, rack-mounting brackets, additional NIM modules, and SFP modules for expanding connectivity options.

Q24: How does the ISR4321/K9 compare to similar Cisco routers?

A: The ISR4321/K9 offers a balanced combination of throughput, port density, and integrated features, positioning it between the ISR4221 and ISR4331 for SMB requirements.

Q25: Is the ISR4321/K9 compatible with older Cisco equipment?

A: Yes, the ISR4321/K9 maintains compatibility with older Cisco devices, ensuring smooth integration into existing network setups.

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