Cisco Integrated Services Router 4431
Build your digital branch

Features & Benefits:

Cisco 4000 Family ISRs provide you with Cisco® Software Defined WAN (SDWAN) software features and a converged branch infrastructure. Along with superior throughput, these capabilities form the building blocks of next-generation branch-office WAN solutions.

Cisco Software Defined WAN

Cisco SDWAN is a set of intelligent software services that allow you to reliably and securely connect users, devices, and branch office locations across a diverse set of WAN transport links. SDWAN-enabled routers like the ISR 4000 dynamically route traffic across the "best" link based on up-to-the-minute application and network conditions for great application experiences. You get tight control over application performance, bandwidth usage, data privacy, and availability of your WAN links - control that you need as your branches conduct greater volumes of mission-critical business.

Cisco Converged Branch Infrastructure

The Cisco 4000 Series ISRs consolidate many must-have IT functions, including network, compute, and storage resources. The high-performance, integrated routers run multiple concurrent services, including encryption, traffic management, and WAN optimization, without slowing your data throughput. And you can activate new services on demand through a simple licensing change.

Cisco Intent Based Networking and Digital Network Architecture (Cisco DNA)

The Cisco Digital Network Architecture (Cisco DNA) is an open, extensible, software-driven architecture that provides for faster innovation, helping to generate deeper insights, and deliver exceptional experiences across many different applications. Cisco DNA relies on intent-based networking, a revolutionary approach in networking that helps organizations automate, simplify, and secure the network.

The intent-based Cisco DNA network is:

• Informed by Context: Interprets every byte of data that flows across it, resulting in better security, more customized experiences, and faster operations.
• Powered by Intent: Translates your intent into the right network configuration, making it possible to manage and provision multiple devices and things in minutes.
• Driven by Intuition: Continually learns from the massive amounts of data flowing through it and turns that data into actionable insight. Helps you solve issues before they become problems and learn from every incident.

Cisco DNA Center provides a centralized management dashboard across your entire network - the branch, campus, data center, and cloud. Rather than relying on box-by-box management, you can design, provision, and set policy end-to-end from the single Cisco DNA Center interface. This allows you to respond to organizational needs faster and to simplify day-to-day operations. Cisco DNA Analytics and Assurance and Cisco Network Data Platform (NDP) help you get the most from your network by continuously collecting and putting insights into action. Cisco DNA is open, extensible, and programmable at every layer. It integrates Cisco and third-party technology, open APIs, and a developer platform, to support a rich ecosystem of network-enabled applications.

Table1: Cisco 4000 Family ISR General Feature Highlights

Business Requirement(s)	Feature/Solution
Performance Throughput Service reliability	Concurrent software services at speeds up to 2 Gbps. Backplane architecture supports high-bandwidth module-to-module communication at speeds up to 10 Gbps. A distributed multicore architecture with the industry's first internal services plane. Remote installation of application-aware services, which run identically to their counterparts in dedicated appliances.
Lower WAN expenditures	Embedded SDWAN solution for creating lower-cost, business-class Internet connections.
Pay-as-you-grow Performance upgrade model Investment protection CapEx budget management	Router capacity can be increased with a remote performance-on-demand license upgrade (no hardware upgrade) for exceptional savings.
Superior and secure user application experiences	ISR-AX "Application Experience" software bundle with advanced routing and network monitoring services. Dynamic Multipoint VPN (DMVPN), zone-based firewalls, Intrusion Prevention (Snort & Umbrella Branch) and Content Management using Cisco Cloud Web security & OpenDNS protecting data, providing authentication credentials, and transmissions not backhauled through the data center. Secure boot feature performs hardware-based authentication of the bootloader software to prevent malicious or unintended software from booting on the system. Code signing verifies digital signatures of executables prior to loading to prevent execution of altered or corrupted code. Hardware authentication protects against hardware counterfeiting by using an on-board tamper-proof silicon, including field replaceable modules. If authentication fails, the module is not allowed to boot.
IT consolidation, space savings, and improved Total Cost of Ownership (TCO)	Single converged branch platform integrates routing, switching, virtual server, storage, security, unified communications, WAN optimization, and performance management tools.
Business continuity and increased resiliency	ISR 4400 Series models (4461, 4451, and 4431 ISRs) support dual integrated power supplies for backup. The entire ISR 4000 Family supports optional power supply capable of delivering additional PoE power to endpoints. Modular network interfaces with diverse connection options for load-balancing and network resiliency. Modular interfaces with online removal and insertion (OIR) for module upgrades without network disruption. Cisco Unified Survivable Remote Site Telephony (SRST), which serves as a resiliency complement to Cisco Hosted Collaboration Solution (HCS), a Cisco cloud-based UC service. Support for multiple, diverse access links: T1/E1, T3/E3, Serial, xDSL, Gigabit and Ten-Gigabit Ethernet.
Lower telephony costs with VoIP and rich media experiences	High-performance analog/digital gateway, allowing VoIP over less expensive Session Initiation Protocol (SIP) trunks. Integrated IP PBX ( Cisco Unified Communications Express) and Session Border Controller ( Cisco Unified Border Element, or CUBE).
Easier manageability and support	Single, universal software image for all features and performance-on-demand licensing flexibility. No additional services and support needed for compute and storage. Supported by Cisco and third-party management tools, with programmability and automation.

Technical Specifications:

Specifications of Cisco 4000 Family Integrated Services Routers

Technical Specifications	Cisco 4461	Cisco 4431	Cisco 4331	Cisco 4221
Aggregate Throughput (Default)	1.5Gbps	500 Mbps	100 Mbps	35Mbps
Aggregate Throughput (Performance License)	3Gbps	1Gbps	300 Mbps	75 Mbps
Aggregate CEF Only1 Throughput (Boost License)	Over 7Gbps	Over 4Gbps	Over 2Gbps	1.2Gbps
Total onboard WAN or LAN 10/100/1000 ports	4	4	3	2
Total onboard WAN or LAN 10Gbps ports	2	—	—	—
RJ-45-based ports	4	4	2	2
SFP-based ports	4	4	2	1
Enhanced service-module slots	3	0	1	0
Doublewide service-module slots	2	0	0	0
NIM slots	3	3	2	2
OIR (all I/O modules)	Yes	Yes	Yes	No
Onboard ISC slot	1	1	1	No
Default memory double-data-rate 3 (DDR3) errorcorrection-code (ECC) DRAM (Combined control/services/d ata planes)	NA	NA	4GB	4GB
Maximum memory DDR3 ECC DRAM (Combined control/services/d ata planes)	NA	NA	16GB	4GB
Default memory DDR3 ECC DRAM (data plane)	4 GB	2 GB	NA	NA
Maximum memory DDR3 ECC DRAM (data plane)	4 GB	2 GB	NA	NA
Default memory DDR3 ECC DRAM (control/services plane)	8 GB	4 GB	NA	NA
Maximum memory DDR3 ECC DRAM (control/services plane)	32 GB	16 GB	NA	NA
Default flash memory	8 GB	8 GB	4 GB	8 GB
Maximum flash memory	32 GB	32 GB	16 GB	8 GB
External USB 2.0 slots (type A)	2	2	1	1
USB console port -type B mini (up to 115.2 kbps)	1	1	1	0
Serial console port - RJ45 (up to 115.2 kbps)	1	1	1	1 (combo CON/AUX port)
Serial auxiliary port - RJ45 (up to 115.2 kbps)	1	1	1	1 (combo CON/AUX port)
Power-supply options	Internal: AC, DC and PoE	Internal: AC, DC and PoE	Internal: AC, DC, and PoE	External AC only
Redundant power supply	Internal: AC, DC and PoE	Internal: AC, DC and PoE	N/A	N/A
Power Specifications
AC input voltage	100 to 240 VAC autoranging	100 to 240 VAC autoranging	100 to 240 VAC autoranging	100 to 240 VAC autoranging
DC Input Voltage Input Voltage Input Current	48 - 60V 12A Max	48 - 60V 12A Max	24 - 60V 14 - 5A	NA NA
AC input frequency	47 to 63 Hz	47 to 63 Hz	47 to 63 Hz	47 to 63 Hz
AC input current range, AC power supply (maximum)	7.1 to 3.0A	3 to 1.3A	3 to 1.3A	1.5 to 0.6A
Sizes and Weights
Dimensions (H x W x D)	3.5 x 17.25 x 18.5 in 88.9 x 438.15 x 469.9 mm)	1.73 x 17.25 x 19.97 in (43.9 x 438.15 x 507.2 mm)	1.75 x 17.25 x 17.25 in (44.45 x 438.15 x 438.15 mm)	1.72 x 12.7 x 10 in (43.7 x 322.6 x 254 mm)
Wall-mount	No	Yes	Yes	Yes
Typical weight (fully loaded with modules)		22.4 lb (10.2 kg)	16.1 lb (7.3 kg)	8.11 lb (3.68kg)
MTBF (Hours)	480770	512970	587250	593270
Environmental Specifications
Operating Conditions
Temperature	32 to 104ºF (0 to 40ºC)	32 to 104ºF (0 to 40ºC)	32 to 104ºF (0 to 40ºC)	32 to 104ºF (0 to 40ºC)
Relative humidity	5% to 85%	5% to 85%	5% to 85%	5% to 85%
Nonoperating Conditions
Temperature	-40 to 158ºF (-40 to 70ºC)	-40 to 158ºF (-40 to 70ºC)	-40 to 158ºF (-40 to 70ºC)	-40 to 158ºF (-40 to 70ºC)
Relative humidity	5% to 95%	5% to 95%	5% to 95%	5% to 95%
Cisco IOS XE Software
Protocols	IPv4, IPv6, static routes, Routing Information Protocol Versions 1 and 2 (RIP and RIPv2), Open Shortest Path First (OSPF), Enhanced IGRP (EIGRP), Border Gateway Protocol (BGP), BGP Router Reflector, Intermediate System-toIntermediate System (IS-IS), Multicast Internet Group Management Protocol Version 3 (IGMPv3), Protocol Independent Multicast sparse mode (PIM SM), PIM Source Specific Multicast (SSM), RSVP, CDP, ERSPAN, IPSLA, Call Home, EEM, IKE, ACL, EVC, DHCP, FR, DNS, LISP, OTV6, HSRP, RADIUS, AAA, AVC, Distance Vector Multicast Routing Protocol (DVMRP), IPv4-to-IPv6 Multicast, MPLS, Layer 2 and Layer 3 VPN, IP sec, Layer 2 Tunneling Protocol Version 3 (L2TPv3), Bidirectional Forwarding Detection (BFD), IEEE802.1ag, and IEEE802.3ah
Encapsulations	Generic routing encapsulation (GRE), Ethernet, 802.1q VLAN, Point-to-Point Protocol (PPP), Multilink Point-to-Point Protocol (MLPPP), Frame Relay, Multilink Frame Relay (MLFR) (FR.15 and FR.16), High-Level Data Link Control (HDLC), Serial (RS-232, RS-449, X.21, V.35, and EIA-530), and PPP over Ethernet (PPPoE)
Traffic management	QoS, Class-Based Weighted Fair Queuing (CBWFQ), Weighted Random Early Detection (WRED), Hierarchical QoS, Policy-Based Routing (PBR), Performance Routing, and NBAR.
Cryptographic Algorithms	Encryption: DES, 3DES, AES-128 or AES-256 (in CBC and GCM modes); Authentication: RSA (748/1024/2048 bit), ECDSA (256/384 bit); Integrity: MD5, SHA, SHA-256, SHA-384, SHA-512

¹ Using onboard Gigabit Ethernet Interfaces

Documentation:

Download the Cisco 4000 Series Integrated Services Routers Datasheet (PDF).