Product Names: CISCO 1921/K9, CISCO 1921-SEC/K9, and CISCO 1921DC/K9
Cisco® 1900 Series Integrated Services Routers (ISRs) build on 25 years of Cisco innovation and product
leadership. The new platforms are architected to enable the next phase of branch-office evolution, providing richmedia collaboration to the branch office while maximizing operational cost savings. The Cisco Integrated Services
Routers Generation 2 (ISR G2) platforms are future-enabled with multicore CPUs, Gigabit Ethernet switching with
enhanced Power over Ethernet (PoE), and new energy monitoring and control capabilities that enhance overall
system performance. Additionally, a new Cisco IOS® Software Universal image enables you to decouple the
deployment of hardware and software, providing a stable technology foundation that can quickly adapt to evolving
network requirements. Overall, the Cisco 1900 Series offers exceptional total cost of ownership (TCO) savings and
network agility through the intelligent integration of market-leading security, unified communications, wireless, and
application services.
Product Overview
The Cisco 1921 builds on the best-in-class offering of the Cisco 1841 Integrated Services Routers. All Cisco 1900
Series Integrated Services Routers offer embedded hardware encryption acceleration, optional firewall, intrusion
prevention, and advanced security services. In addition, the platforms support the industry’s widest range of wired
and wireless connectivity options such as Serial, T1/E1, xDSL, Gigabit Ethernet, and third-generation (3G)
wireless (Figure 1).
Figure 1. Cisco 1921 Integrated Services Router
Key Business Benefits
Cisco ISR G2 routers provide superior services integration and agility. Designed for scalability, the modular
architecture of these platforms enables you to grow and adapt with your business needs. Table 1 lists the
business benefits of the Cisco 1900.
Table 1. Key Features and Benefits of the Cisco 1921 Integrated Services Router
Benefits Description
Service integration
Services on demand
High performance with
integrated services
●
The Cisco 1921 offers increased levels of services integration with data, security, wireless, and mobility services,
enabling greater efficiencies and cost savings.
●
A single Cisco IOS Software Universal image is installed on each ISR G2. The Universal image contains all of the
Cisco IOS Software technology sets that can be activated with a software license, allowing your business to quickly
deploy advanced features without downloading a new Cisco IOS Software image. Additionally, larger default
memory is included to support the new capabilities.
●
The Cisco 1900 Series enables deployment in high-speed WAN environments with concurrent services enabled up
to 15 Mbps.
Designed to address customer business requirements, the Cisco 1921 with the modular architecture offers a
performance range of modular interfaces and services as your network needs grow.
●
Modular interfaces offer increased bandwidth, a diversity of connection options, and network resiliency.
●
The Cisco 1921 architecture provides energy-savings features that include the following:
◦
The Cisco 1900 Series offers intelligent power management and allows you to control power to the modules
based on the time of day. Cisco EnergyWise technology will be supported in the future.
◦
Services integration and modularity on a single platform performing multiple functions optimizes raw-materials
consumption and energy usage.
◦
Platform flexibility and ongoing development of both hardware and software capabilities lead to a longer product
lifecycle, lowering all aspects of the TCO, including materials and energy use.
◦
High-efficiency power supplies are provided with each platform.
◦
DC Power option available (CISCO1921DC/K9).
●
The Cisco 1921 maximizes investment protection:
◦
Reuse of a broad array of existing modules supported on the original ISRs provides a lower TCO.
◦
A rich set of Cisco IOS Software features is carried forward from the original ISRs and delivered in the Universal
image.
◦
This router gives you the flexibility to grow as your business needs evolve.
Architecture and Modularity
The Cisco 1921 is architected to meet the application demands of today’s branch offices with design flexibility for
future applications. The modular architecture is designed to support expanding customer requirements, increased
bandwidth, and fully integrated power distribution to modules supporting 802.3af PoE and Cisco Enhanced PoE
(ePoE). Table 2 lists the architectural features and benefits of the Cisco 1921.
Table 2. Architectural Features and Benefits
Architectural Feature Benefits
Modular platform
Processors
Embedded IP
Security/Secure Sockets
Layer (IPsec/SSL) VPN
hardware acceleration
Optional external power
supply for distribution of
PoE
●
The Cisco 1921 ISRs are highly modular platforms with multiple module slots to provide connectivity and services
for varied branch-office network requirements.
●
The ISRs offer an industry-leading breadth of LAN and WAN connectivity options through modules to
accommodate field upgrades to future technologies without requiring replacement of the platform.
●
The Cisco 1921 is powered by high-performance multicore processors that support growing demands of branchoffice networks by supporting high-throughput WAN requirements.
●
Embedded hardware encryption acceleration is enhanced to provide higher scalability, which, combined with an
optional Cisco IOS Security license, enables WAN link security and VPN services (both IPsec and SSL
acceleration).
●
The onboard encryption hardware outperforms the advanced integration modules (AIMs) of previous generations.
●
All onboard LAN and WAN ports are 10/100/1000 Gigabit Ethernet routed ports.
●
A new, innovative, mini-Type B USB console port supports management connectivity when traditional serial ports
are not available.
●
The traditional console and auxiliary ports are also available. You can use either the USB-based console or the RJ45-based console port to configure the router.
●
An optional upgrade to the power supply provides inline power (802.3af-compliant PoE) and Cisco Standard Inline
Power to optional integrated switch modules.
Modularity Features and Benefits
The Cisco 1921 provides significantly enhanced modular capabilities (refer to Table 3) that offer you investment
protection. Most of the modules available on previous generations of Cisco routers, such as the Cisco 1841 ISR,
are supported on the Cisco 1921. Additionally, you can easily interchange modules used on the Cisco 1921 with
other Cisco routers to provide maximum investment protection. Taking advantage of common interface cards
across a network greatly reduces the complexity of managing inventory requirements, implementing large network
rollouts, and maintaining configurations across a variety of branch-office sizes.
A complete list of supported modules is available at http://www.cisco.com/go/1921.
Table 3. Modularity Features and Benefits
Feature Benefits
●
Cisco Enhanced High-Speed WAN
Interface Card (EHWIC)
The EHWIC slot replaces the high-speed WAN interface card (HWIC) slot and can natively support
HWICs, WAN interface cards (WICs), and voice/WAN interface cards (VWICs).
●
Two integrated EHWIC slots are available on the Cisco 1921 for flexible configurations for support of
two modules: One doublewide HWIC-D or two singlewide EHWIC/HWIC modules are supported.
●
Each EHWIC slot offers high-data-throughput capability.
USB 2.0 ports
●
One high-speed USB 2.0 port is supported. The USB port enables another mechanism for securetoken capabilities and storage.
Cisco IOS Software
The Cisco 1921 Integrated Services Routers deliver innovative technologies running on industry-leading Cisco
IOS Software. Developed for wide deployment in the world’s most demanding enterprise, access, and service
provider networks, Cisco IOS Software Releases 15M and T support a comprehensive portfolio of Cisco
technologies, including new functions and features delivered in Releases 12.4 and 12.4T, and new innovations
that span multiple technology areas, including security, high availability, IP Routing and Multicast, quality of
service (QoS), IP Mobility, Multiprotocol Label Switching (MPLS), VPNs, and embedded management.
Cisco IOS Software Licensing and Packaging
A single Cisco IOS Universal image encompassing all functions is delivered with the platforms. You can enable
advanced features by activating a software license on the Universal image. In previous generations of access
routers, these feature sets required you to download a new software image. Technology packages and feature
licenses, enabled through the Cisco software licensing infrastructure, simplify software delivery and decrease the
operational costs of deploying new features.
Four major technology licenses are available on the Cisco 1921 Integrated Services Routers; you can activate the
licenses through the Cisco software activation process identified at
●
IP Base: This technology package is available as default
●
Data
●
Security (SEC) or Security with No Payload Encryption (SEC-NPE)
http://www.cisco.com/go/sa.
For additional information and details about Cisco IOS Software licensing and packaging on Cisco 1921 Integrated
Services Routers, please visit
http://www.cisco.com/go/1921.
Key Branch-Office Services
The industry-leading Cisco Integrated Services Routers offer unprecedented levels of services integration.
Designed to meet the requirements of the branch office, these platforms provide a complete solution with security,
mobility, and data services. Businesses enjoy the benefit by deploying a single device that meets all their needs
and saves on capital and operational expenses.
Security is essential to protect a business’ intellectual property while also ensuring business continuity and
providing the ability to extend the corporate workplace to employees who need anytime, anywhere access to
company resources. As part of the architectural framework of the SAFE Blueprint from Cisco that allows
organizations to identify, prevent, and adapt to network security threats, the Cisco 1900 Series ISRs facilitate
secure business transactions and collaboration.
The Cisco IOS Software Security technology package license for the Cisco 1900 Series offers a wide array of
common security features such as advanced application inspection and control, threat protection, and encryption
architectures for enabling more scalable and manageable VPN networks in one solution set. The Cisco 1921
offers native hardware-based encryption acceleration to provide greater IPsec throughput with less overhead for
the router processor when compared with software-based encryption solutions. Cisco ISRs offer a comprehensive
and adaptable security solution for branch-office routers that include features such as:
●
Secure connectivity: Achieve secure collaborative communications with Group Encrypted Transport VPN,
Dynamic Multipoint VPN (DMVPN), or Enhanced Easy VPN.
●
Integrated threat control: Respond to sophisticated network attacks and threats using Cisco IOS Firewall,
Cisco IOS Zone-Based Firewall, Cisco IOS IPS, and Cisco ScanSafe Web Security and Flexible Packet
Matching (FPM).
●
Identity management: Intelligently protect endpoints using technologies such as authentication,
authorization, and accounting (AAA) and public key infrastructure (PKI).
Detailed information about the security features and solutions supported on the Cisco 1900 Series routers is
available at
http://www.cisco.com/go/routersecurity.
Mobility Services
Wireless WAN
Cisco 3G wireless WAN (WWAN) modules combine traditional enterprise router functions such as remote
management, advanced IP services such as voice over IP (VoIP), and security, with mobility capabilities of 3G
WAN access. Using high-speed 3G wireless networks, routers can replace or complement existing landline
infrastructure such as dialup, Frame Relay, and ISDN. Cisco 3G solutions support 3G standards High-Speed
Packet Access (HSPA+) and Evolution Data Only/Evolution Data Optimized (EVDO), offering you a true multipath
WAN backup and the ability to rapidly deploy primary WAN connectivity. For more information about 3G solutions
on Cisco ISRs, please visit
Integrated LAN Switching
The Cisco 1921 Integrated Services Router will support the EHWIC LAN modules when they become available in
the future. The Cisco 1921 supports the existing singlewide Cisco EtherSwitch® HWIC and the doublewide HWICD modules, which greatly expand the capabilities of the router by integrating industry-leading Layer 2 switching.
Managing Your Integrated Services Routers
Network management applications are instrumental in lowering operating expenditures (OpEx) while improving
network availability by simplifying and automating many of the day-to-day tasks associated with managing an endto-end network. “Day-one device support” provides immediate manageability support for the ISR, enabling quick
and easy deployment, monitoring, and troubleshooting from Cisco and third-party applications.
Organizations rely on Cisco, third-party, and in-house developed network management applications to achieve
their operating expense (OpEx) and productivity goals. Underpinning those applications are the embedded
management features available in every ISR. The new ISRs continue a tradition of broad and deep manageability
features within the devices. Features such as Cisco IOS IP Service-Level Agreements (IP SLAs), Cisco IOS
Embedded Event Manager (EEM), and NetFlow allow you to know what is going on in your network at all times.
These features along with Simple Network Management Protocol (SNMP) and syslog support enable your
organization’s management applications.
Tables 4 through 6 give details about Cisco IOS software feature and protocol support, Cisco IOS software
management capabilities, and Cisco Network Management applications for Cisco 1921 Integrated Services
Routers.
Table 4. Cisco 1921 with Cisco IOS Software Feature and Protocol High-Level Support
Feature Description
Protocols IPv4, IPv6, static routes, Open Shortest Path First (OSPF), Enhanced IGRP (EIGRP), Border Gateway Protocol
Traffic management QoS, Class-Based Weighted Fair Queuing (CBWFQ), Weighted Random Early Detection (WRED), Hierarchical QoS,
(BGP), BGP Router Reflector, Intermediate System-to-Intermediate System (IS-IS), Multicast Internet Group
Management Protocol (IGMPv3) Protocol Independent Multicast sparse mode (PIM SM), PIM Source-Specific
Multicast (SSM), Distance Vector Multicast Routing Protocol (DVMRP), IPsec, generic routing encapsulation (GRE),
Bidirectional Forwarding Detection (BVD), IPv4-to-IPv6 Multicast, MPLS, Layer 2 Tunneling Protocol Version 3
(L2TPv3), 802.1ag, 802.3ah, and Layer 2 and Layer 3 VPN.
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), Point-to-Point Protocol over Ethernet (PPPoE), and ATM.
Feature Description of Feature Supported by Cisco Integrated Services Routers
WSMA The Web Services Management Agent (WSMA) defines a mechanism through which you can manage a network
EEM Cisco IOS EEM is a distributed and customized approach to event detection and recovery offered directly in a Cisco
IPSLA Cisco IOS IP SLAs enable you to assure new business-critical IP applications, as well as IP services that use data,
SNMP, RMON, syslog,
NetFlow, and TR-069
device, retrieve configuration data information, and upload and manipulate new configuration data. WSMA uses XMLbased data encoding that is transported by the Simple Object Access Protocol (SOAP) for the configuration data and
protocol messages.
IOS Software device. It offers the ability to monitor events and take informational, corrective, or any desired EEM
action when the monitored events occur or when a threshold is reached.
voice, and video, in an IP network.
Cisco 1900 Series ISRs support SNMP, Remote Monitoring (RMON), syslog, NetFlow, and TR-069 in addition to the
embedded management features previously mentioned.
The applications listed in Table 6 are standalone products that you can purchase or download to manage your
Cisco network devices. The applications are built for the different operational phases; you can select the ones that
best fit your needs.
Table 6. Network Management Solutions
Operational Phase Application Description
Device staging and
configuration
Networkwide
deployment,
configuration,
monitoring, and
troubleshooting
Networkwide staging,
configuration, and
compliance
Security staging,
configuration, and
monitoring
Configuration and
provisioning
Staging, deployment,
and changes of
licenses
Staging, deployment,
and changes to
configuration and
image files
Cisco Configuration
Professional
CiscoWorks LMS
CiscoWorks NCM
Cisco Security Manager
Cisco Unified Provisioning
Manager
Cisco License Manager
Cisco Configuration
Engine
●
Cisco Configuration Professional is a GUI device-management tool for Cisco IOS
Software-based access routers. This tool simplifies routing, firewall, IPS, VPN, unified
communications, and WAN and LAN configuration through GUI-based easy-to-use
wizards.
●
CiscoWorks LAN Management Solution (LMS) is a suite of integrated applications for
simplifying day-to-day management of a Cisco end-to-end network, lowering OpEx while
increasing network availability. CiscoWorks LMS offers network managers an easy-touse web-based interface for configuring, administering, and troubleshooting the Cisco
ISRs, using new instrumentation such as Cisco IOS EEM.
●
In addition to supporting basic platform services of the ISR, CiscoWorks also provides
added-value support for the Cisco Services-Ready Engine (SRE) by enabling the
management and distribution of software images to the SRE, thereby reducing the time
and complexities associated with image management.
●
CiscoWorks Network Compliance Manager (NCM) tracks and regulates configuration
and software changes throughout a multivendor network infrastructure. It provides
superior visibility into network changes and can track compliance with a broad variety of
regulatory, IT, corporate governance, and technology requirements.
●
Cisco Security Manager is a leading enterprise-class application for managing security. It
delivers provisioning of firewall, VPN, and intrusion-prevention-system (IPS) services
across Cisco routers, security appliances, and switch service modules. The suite also
includes the Cisco Security Monitoring, Analysis and Response System (Cisco Security
MARS) for monitoring and mitigation.
●
Cisco Unified Provisioning Manager provides a reliable and scalable web-based solution
for managing a company’s crucial next-generation communications services. It manages
unified communications services in an integrated IP telephony, voicemail, and
messaging environment.
●
Easily manage Cisco IOS Software activation and license management for a wide range
of Cisco platforms running Cisco IOS Software as well as other operating systems with
the secure client-server application Cisco License Manager.
●
Cisco Configuration Engine is a secure network management product that provides zerotouch image and configuration distribution through centralized, template-based
management.
Summary and Conclusion
As businesses strive to lower the TCO in running their networks and increase their overall employee productivity
with more centralized and collaborative network applications, more intelligent branch-office solutions are required.
The Cisco 1921 offers these solutions by providing enhanced performance and increased modular density to
support multiple services. The Cisco 1921 is designed to consolidate the functions of separate devices into a
single, compact system that can be remotely managed. Table 7 gives specifications of the Cisco 1921.
Table 7. Product Specifications of Cisco 1921 Integrated Services Router
Cisco 1921 Integrated Services Router
Services and Slot Density
Embedded hardware-based cryptography acceleration (IPsec + SSL) Yes
RJ-45 onboard LAN/WAN 10/100/1000 ports 2
EHWIC slots 2
Doublewide EHWIC slots (use of a doublewide EHWIC slot will consume
2 EHWIC slots)
Cisco Integrated Services Module (ISM) slots 0
Memory (DDR2 DRAM): Default/maximum 512 MB/512 MB
USB flash memory (internal): Default/maximum 256 MB/256 MB
External USB flash-memory slots (Type A) 1
USB console port (mini-Type B) (up to 115.2 kbps) 1
Serial console port (up to 115.2 kbps) 1
Serial auxiliary port (up to 115.2 kbps 1
Integrated power supply AC and DC power-supply models
Power-supply options POE (external) - on AC models only
Redundant-power-supply support No
Power Specifications
AC input voltage 100-240V ~
AC input frequency 47-63 Hz
AC input current range AC power supply (maximum) (amps) 1.5-0.6
AC input surge current <50A
Typical power (no modules) 25W
Maximum power capacity with AC power supply 60W
Maximum power capacity with PoE power supply (platform only) 70W
Maximum PoE device power capacity with PoE power supply 80W
DC power input 32-60 VDC, 4A, positive or negative, single source
DC input wire size AWG 14 (2.0 mm2)
Safety ground-wire size AWG 14 (2.0 mm2), minimum
Wire terminal (lug) Amp/Tyco No.32957
Overcurrent protection 20A maximum
Physical Specifications
Dimensions (H x W x D) 1.75 x 13.5 x 11.5 in. (4.45 x 34.29 x 29.21 cm)
Rack height 1 rack unit (1RU)
Rack-mount 19 in. (48.3 cm) EIA Optional
Wall-mount (refer to installation guide for approved orientation) Yes
Weight: With AC power supply (no modules) 6.75 lb
Weight: With PoE power supply (no modules) 7.5 lb
Airflow Back to sides
Environmental Specifications
Operating Conditions
Temperature: 5906 ft (1800m) maximum altitude 32-104˚F (0-40˚C)
Temperature: 9843 ft (3000m) maximum altitude 32-77˚F (0-25˚C)
Altitude 10,000 ft (3,000m)
Humidity 10 to 85% relative humidity (RH)
Acoustic: Sound pressure (typical/maximum) 32.99/58.33 dBA
Acoustic: Sound power (typical/maximum) 41.99/67.22 dBA
Transportation and Storage Conditions
Temperature -40 to 158˚F (-40 to 70˚C)
Humidity 5 to 95% RH
Altitude 15,000 ft (4,570m)
Regulatory Compliance
Safety UL 60950-1
CAN/CSA C22.2 No. 60950-1
EN 60950-1
AS/NZS 60950-1
IEC 60950-1
EMC 47 CFR, Part 15
ICES-003 Class A
EN55022 Class A
CISPR22 Class A
AS/NZS 3548 Class A
VCCI V-3
EN 300-386
EN 61000 (Immunity)
EN 55024, CISPR 24
EN50082-1
Telecom TIA/EIA/IS-968
CS-03
ANSI T1.101
IEEE 802.3
RTTE Directive
Supported Modules
Cisco 1921 Integrated Services Routers support a wide range of modules that span industry-leading breadths of
services at the branch office. Please refer to the following link for the list of modules supported on the Cisco 1900:
For more information about the Cisco 1900 Series, visit http://www.cisco.com/go/1921.
Table 8 gives ordering information for the Cisco 1921 Router; also refer to the Cisco Ordering Home Page. For
information about how to order the Cisco 1900 Series, please visit the Cisco 1900 Series Ordering Guide. For
additional product numbers, including the Cisco 1900 Series bundle offerings, please check the
Integrated Services Router Price List or contact your local Cisco account representative.
Cisco1921/K9 Cisco 1921 with 2 onboard GE, 2 EHWIC slots, 256MB USB Flash (internal) 512MB DRAM, IP Base Lic
Cisco1921-SEC/K9 Cisco 1921 with 2 onboard GE, 2 EHWIC slots, 256MB USB Flash (internal) 512MB DRAM, SEC Feature Lic
Cisco1921DC/K9 Cisco 1921 Modular Router DC Power,2GE,2EHWICslots,512MB, IP Base
C1921-AX/K9 Cisco 1921 Router, 256MB CF, 512MB DRAM, IP Base, SEC, AX
C1921-4G-V-SEC/K9 C1921 4G LTE 700MHz (B13) For Verizon Networks with security
Cisco1921-T1SEC/K9 Cisco 1921 SEC T1 bundle with HWIC-1DSU-T1, 256F/512D, IOS SEC Lic
C1921-VA/K9 Cisco 1921 ISR with EHWIC-VA-DSL-A bundle
C1921VAM/K9 Cisco 1921 ISR with Multimode EHWIC for VDSL/ADSL2+ Annex M
C1921-4SHDSL-EA/K9 Cisco 1921 4pair Double Wide EHWIC-4SHDSL-EA bundle, IP Base
PWR-1900-POE POE Power Adapter for Cisco1921
To download the Cisco 1921 with Cisco IOS Software, go to Download Software, click "Router Software”, and go
to “Cisco ISR 1921 Integrated Services Router”.
ISR Migration Options
Cisco 1900 Series Routers are included in the standard Cisco Technology Migration Program (TMP). Refer to
http://www.cisco.com/go/TMP and contact your local Cisco account representative for program details.
Warranty Information
The Cisco 1900 Series Integrated Services Routers have a 1-year limited liability warranty.
Cisco and Partner Services for the Branch Office
Services from Cisco and our certified partners can help you reduce the cost and complexity of branch-office
deployments. We have the depth and breadth of experience across technologies to architect a blueprint for a
branch-office solution to meet your company’s needs. Planning and design services align technology with
business goals and can increase the accuracy, speed, and efficiency of deployment. Technical services help
maintain operational health, strengthen software application functions, solve performance problems, and lower
expenses. Optimization services are designed to continually improve performance and help your team succeed
with new technologies. For more information, please visit
Cisco SMARTnet® technical support for the Cisco 1900 Series is available on a one-time or annual contract basis.
Support options range from help-desk assistance to proactive, onsite consultation. All support contracts include:
●
Major Cisco IOS Software updates in protocol, security, bandwidth, and feature improvements
●
Full access rights to Cisco.com technical libraries for technical assistance, electronic commerce, and
product information
●
Access to the industry’s largest dedicated technical support staff 24 hours a day