Cisco 2900 Series Integrated Services Routers
Figure 1. Cisco 2900 Series Integrated Services Routers
Product Overview
Cisco 2900 Series builds on the best-in-class offering of the existing Cisco 2800 Series Integrated Services Routers by offering four platforms (Figure 1): the Cisco 2901, 2911, 2921, and 2951 Integrated Services Routers.
All Cisco 2900 Series Integrated Services Routers offer embedded hardware encryption acceleration, voice- and video-capable digital signal processor (DSP) slots, optional firewall, intrusion prevention, call processing, voicemail, and application services. In addition, the platforms support the industries widest range of wired and wireless connectivity options such as T1/E1, T3/E3, xDSL, copper and fiber GE.
Key Business Benefits
The Integrated Services Routers Generation 2 (ISR G2) 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 2900 Series.
Table 1. Key Business Benefits of the Cisco 2900 Series Integrated Services Routers
Platform Architecture and Modularity
The Cisco 2900 Series 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 increasing bandwidth requirements, time-division multiplexing (TDM) interconnections, and fully integrated power distribution to modules supporting 802.3af Power over Ethernet (PoE) and Cisco Enhanced PoE (ePoE). Table 2 lists the architectural features and benefits of the Cisco 2900 Series.
Table 2. Key Business Benefits of the Cisco 2900 Series Integrated Services Routers
Modularity Features and Benefits
The Cisco 2900 Series provides significantly enhanced modular capabilities (refer to Table 3) offering investment protection for customers. Most of the modules available on previous generations of Cisco routers, such as the Cisco 2800 Series, are supported on the Cisco 2900 Series. Additionally, modules can be used on other supported Cisco platforms 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.
Table 3. Modularity Features and Benefits
VoiceXML Application Services
The Cisco 2900 Series also supports standards-certified VoiceXML browser services. VoiceXML is an open-standard markup language used to create voice-enabled web browsers and IVR applications. Just as HTML enables you to retrieve data with a PC, VoiceXML enables you to retrieve data using voice or dual-tone-multifrequency (DTMF) telephony input. The Cisco 2900 Series can deliver a much higher range of concurrent voice-gateway services combined with VoiceXML browser services, for up to 200 sessions on the Cisco 2951.
Integrated Network Security for Data, Voice, Video, and Mobility
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 Cisco' SAFE architectural framework that allows organizations to identify, prevent, and adapt to network security threats, the Cisco 2900 Series Integrated Services Routers facilitate secure business transactions and collaboration.
The Cisco IOS Software Security technology package for the Cisco 2900 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. The Cisco 2900 Series offers onboard hardware-based encryption acceleration to provide greater IPSec throughput with less overhead for the route processor when compared with software-based encryption solutions. Cisco Integrated Services Routers offer a comprehensive and adaptable security solution for branch offices that includes features such as:
• Secure connectivity : Secure collaborative communications with Group Encrypted Transport VPN, Dynamic Multipoint VPN (DMVPN), or Enhanced Easy VPN
• Integrated threat control : Responding to sophisticated network attacks and threats using Cisco IOS Firewall, Cisco IOS Zone-Based Firewall, Cisco IOS IPS, Cisco IOS Content Filtering, and Flexible Packet Matching (FPM)
• Identity management : Intelligently protecting endpoints using technologies such as authentication, authorization, and accounting (AAA) and public key infrastructure (PKI)
Wireless and Mobility Services
Wireless LAN/WAN : The Cisco Integrated Services Routers supporting the Cisco Unified Wireless Architecture enable deployment of secure, manageable wireless LANs (WLANs) optimized for remote sites and branch offices, including fast secure mobility, survivable authentication, and simplified management. The Cisco Wireless LAN Controller Module on the Cisco 2900 Series allows small and medium-sized businesses (SMBs) and enterprise branch offices to cost-effectively deploy and manage secure WLANs. Cisco Wireless LAN Controllers work in conjunction with Cisco lightweight access points and the Cisco Wireless Control System (WCS) to provide system-wide WLAN functions, managing up to 6, 12, and 25 access points.
Wireless WAN : Cisco third-generation (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) providing you with a true multipath WAN backup and the ability to rapidly deploy primary WAN connectivity. For more information about 3G solutions on Cisco Integrated Services Routers
Integrated LAN Switching : The Cisco 2900 Integrated Services Routers (Cisco 2911 through Cisco 2951) support the new Cisco Enhanced EtherSwitch® Service Modules, which greatly expand router capabilities by integrating industry-leading Layer 2 or Layer 3 switching with feature sets identical to those found in the Cisco Catalyst 2960 and Catalyst 3650-E Series Switches performing local line-rate switching and routing. The new Cisco Enhanced EtherSwitch Service Modules take advantage of the increased power capabilities on the Cisco 2900 ISRs. Additionally, the Cisco Enhanced EtherSwitch modules enable the newest Cisco power initiatives, Cisco EnergyWise, Cisco Enhanced Power over Ethernet (ePoE), per-port PoE power monitoring, and RPS-enabled PoE boost. These technologies allow you to meet increased endpoint power requirements without increasing the total power consumption of the branch.
Table 4. Cisco 2900 ISR G2 Series IOS Software Features and Protocols Support
Table 5. Cisco 2900 Integrated Services Router Product Specifications
Table 6. Cisco 2900 Series Basic Ordering Information
Figure 1. Cisco 2900 Series Integrated Services Routers
Product Overview
Cisco 2900 Series builds on the best-in-class offering of the existing Cisco 2800 Series Integrated Services Routers by offering four platforms (Figure 1): the Cisco 2901, 2911, 2921, and 2951 Integrated Services Routers.
All Cisco 2900 Series Integrated Services Routers offer embedded hardware encryption acceleration, voice- and video-capable digital signal processor (DSP) slots, optional firewall, intrusion prevention, call processing, voicemail, and application services. In addition, the platforms support the industries widest range of wired and wireless connectivity options such as T1/E1, T3/E3, xDSL, copper and fiber GE.
Key Business Benefits
The Integrated Services Routers Generation 2 (ISR G2) 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 2900 Series.
Table 1. Key Business Benefits of the Cisco 2900 Series Integrated Services Routers
| Benefits | Description |
| Services Integration | The Cisco 2900 Series ISRs offer increased levels of services integration with voice, video, security, wireless, mobility, and data services, enabling greater efficiencies and cost savings. |
| Services On Demand | • A single Cisco IOS® Software Universal image is installed on each ISR G2. The Universal image contains all of the Cisco IOS technology sets which can be activated with a software license. This allows your business to quickly deploy advanced features without downloading a new IOS image. Additionally, larger default memory is included to support the new capabilities. • The Cisco Services Ready Engine (SRE) enables a new operational model which allows you to reduce capital expenditures (CapEx) and deploy a variety of application services as needed on a single integrated compute services module. |
| High Performance with Integrated Services | • The Cisco 2900 Series enables deployment in high speed WAN environments with concurrent services enabled up to 75 Mbps. • A multigigabit fabric (MGF) enables high-bandwidth module-to-module communication without compromising routing performance. |
| Network Agility | • Designed to address customer business requirements, the Cisco 2900 Series modular architecture offers increased capacity and performance as your network needs grow. • Modular interfaces offer increased bandwidth, a diversity of connection options, and network resiliency. |
| Energy Efficiency | • The Cisco 2900 Series architecture provides energy-saving features that include the following: • The Cisco 2900 Series offers intelligent power management and allows the customer 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 total cost of ownership, including materials and energy use. • High efficiency power supplies are provided with each platform. |
| Investment Protection | • The Cisco 2900 Series maximizes investment protection: • Reuse of a broad array of existing modules supported on the original Integrated Services Routers provides a lower cost of ownership. • A rich set of Cisco IOS Software features carried forward from the original Integrated Services Routers and delivered in a single universal image. • Flexibility to adapt as your business needs evolve. |
Platform Architecture and Modularity
The Cisco 2900 Series 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 increasing bandwidth requirements, time-division multiplexing (TDM) interconnections, and fully integrated power distribution to modules supporting 802.3af Power over Ethernet (PoE) and Cisco Enhanced PoE (ePoE). Table 2 lists the architectural features and benefits of the Cisco 2900 Series.
Table 2. Key Business Benefits of the Cisco 2900 Series Integrated Services Routers
| Architectural Feature | Benefits |
| Modular Platform | • The Cisco 2900 Series ISRs are highly modular platforms with several types of module slots to add 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 for future technologies without requiring a platform replacement. |
| Processors | The Cisco 2900 Series are powered by high-performance multi-core processors that can support the growing demands of high-speed WAN connections to the branch-office while also running multiple concurrent services. |
| Embedded IP Security (IPSec) VPN Hardware Acceleration | • 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 (IPSec acceleration). • The onboard encryption hardware replaces and outperforms the advanced integration modules (AIMs) of previous generations. |
| Multigigabit Fabric (MGF) | The Cisco 2900 Series introduces an innovative multigigabit fabric (MGF) that allows for efficient module-to-module communication, enabling tighter services interactions across modules while reducing the overhead on the route processor. |
| TDM Interconnectivity Fabric | Unified communications services in the branch office are significantly enhanced with the use of a TDM interconnectivity fabric in the system architecture, allowing for scaling of DS-0 channel capacity. |
| ntegrated Gigabit Ethernet Ports | • All onboard WAN ports are 10/100/1000 Gigabit Ethernet WAN routed ports. • One of the three 10/100/1000 Ethernet WAN ports on the Cisco 2921 and 2951 supports Small Form-Factor Pluggable (SFP)-based connectivity in lieu of a RJ-45 port and enabling fiber connectivity. |
| Innovative Universal-Serial-Bus (USB)-Based Console Access | • A new, innovative USB console port offers management connectivity for devices without a serial port such as modern laptop computers. • Traditional console and auxiliary ports are also available. |
| Optional Integrated Power Supply for Distribution of PoE and Universal DC Power Supply | • An optional upgrade to the internal power supply provides inline power (802.3af-compliant PoE and Cisco Inline Power) to integrated switch modules. • On the Cisco 2911, 2921, and 2951, an optional DC power supply will be available in the future that extends deployment into central offices and industrial environments. |
| Optional External Redundant Power Supply (RPS) | • The Cisco 2911, 2921, and 2951 allow for power redundancy through the use of an external RPS device, thereby decreasing network downtime and protecting the network from power-supply failures. • Redundant power on the Cisco 2900 Series is supported through the Cisco RPS 2300 Redundant Power System. You can use the Cisco RPS 2300 to provide redundant power for Cisco 2900 Series ISRs as well as Cisco Catalyst® switches. • In order to use the Cisco RPS 2300, an external RPS adapter is required (configurable option) to connect the platform to the external RPS. |
| PoE Boost | When connected to an external RPS device, the Cisco 2911, 2921, and 2951 can operate in a PoE boost configuration in lieu of redundant power mode - whereby the power capacity of the platform is increased to twice the normal level to power additional PoE ports. |
| Designed for Flexible Deployments | • The Cisco 2911 and 2951 are designed for NEBS environments. • The 2911 is 12" deep and has an optional fan filter for deployments in a variety of environments. An assembly that provides front-to-back airflow is also available for 23" racks. |
Modularity Features and Benefits
The Cisco 2900 Series provides significantly enhanced modular capabilities (refer to Table 3) offering investment protection for customers. Most of the modules available on previous generations of Cisco routers, such as the Cisco 2800 Series, are supported on the Cisco 2900 Series. Additionally, modules can be used on other supported Cisco platforms 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.
Table 3. Modularity Features and Benefits
| ISR Modules | Benefits |
Cisco Service Module  |
• Each service module slot offers high-data-throughput capability: • Up to 4 Gbps aggregate toward the route processor. • Up to 2 Gbps aggregate to other module slots over MGF. • Service module (SM) slots are highly flexible with support for double-wide service modules (SM-Ds), which are Service Modules that require two SM slots. SM-Ds in the Cisco 2921 and 2951 provide flexibility for higher-density modules. • A service module slot replaces the network module and the extension module for voice/fax (EVM) slots and is offered on Cisco 2911, 2921, and 2951 ISRs. • An adapter module enables backward compatibility with existing network modules, enhanced network modules (NMEs), and EVMs. • Service module slots provide twice the power capabilities relative to the network-module slots, allowing for flexibility for higher-scale and better-performance modules. • Power to service module slots can be managed by extensions similar to the Cisco EnergyWise framework, so your organization can reduce energy consumption in your network infrastructure. Full EnergyWise support will be available in future software releases. |
Cisco Enhanced High-Speed WAN Interface Card (EHWIC) |
• The EHWIC slot provides enhancements to the prior generation's high-speed WAN interface card (HWIC) slots while provide maximum investment protection by natively supporting HWICs, WAN interface cards (WICs), voice interface cards (VICs), and voice/WAN interface cards (VWICs). • Four integrated EHWIC slots on the Cisco 2901, 2911, 2921, and 2951 allow for more flexible configurations. • Each HWIC slot offers high-data-throughput capability: • Up to 1.6 Gbps aggregate toward the route processor. • Up to 2 Gbps aggregate to other module slots over the MGF. • Flexibility to support double-wide modules is enabled by combining two EHWIC slots. Up to 2 doublewide HWIC (HWIC-D) modules are supported. |
Cisco Internal Services Module (ISM) |
• A single ISM slot provides flexibility to integrate intelligent service modules on an internal slot within the chassis • Each ISM slot offers high-data-throughput capability: • Up to 4 Gbps aggregate toward the route processor. • Up to 2 Gbps aggregate to other module slots over the MGF. • The ISM replaces the AIM slot; existing AIM modules are not supported in the ISM slot. • Power to ISM slots can be managed by extensions similar to the Cisco EnergyWise framework, so your organization can reduce energy consumption in your network infrastructure. Full EnergyWise support will be available in future software releases. |
Cisco High-Density Packet Voice Digital Signal Processor (DSP) Module (PVDM3) Slots on Motherboard |
• PVDM3 slots natively support PVDM3 modules, providing support for richer density for rich-media voice and video. • Each PVDM3 slot connects back to the system architecture through a 2 Gbps aggregate link through the MGF. • Investment protection for PVDM2 modules is supported through an adapter module. • Power to the PVDM slots can be managed by extensions similar to the Cisco EnergyWise framework, so your organization can reduce energy consumption in your network infrastructure. Full EnergyWise support will be available in future software releases. |
| Compact Flash Slots | Two external Compact Flash slots are available on the Cisco 2900 Series Integrated Services Routers. Each slot can support high-speed storage densities upgradeable to 4 GB in density. |
| USB 2.0 Ports | Two high-speed USB 2.0 ports are supported. The USB ports enable secure token capabilities and storage. |
VoiceXML Application Services
The Cisco 2900 Series also supports standards-certified VoiceXML browser services. VoiceXML is an open-standard markup language used to create voice-enabled web browsers and IVR applications. Just as HTML enables you to retrieve data with a PC, VoiceXML enables you to retrieve data using voice or dual-tone-multifrequency (DTMF) telephony input. The Cisco 2900 Series can deliver a much higher range of concurrent voice-gateway services combined with VoiceXML browser services, for up to 200 sessions on the Cisco 2951.
Integrated Network Security for Data, Voice, Video, and Mobility
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 Cisco' SAFE architectural framework that allows organizations to identify, prevent, and adapt to network security threats, the Cisco 2900 Series Integrated Services Routers facilitate secure business transactions and collaboration.
The Cisco IOS Software Security technology package for the Cisco 2900 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. The Cisco 2900 Series offers onboard hardware-based encryption acceleration to provide greater IPSec throughput with less overhead for the route processor when compared with software-based encryption solutions. Cisco Integrated Services Routers offer a comprehensive and adaptable security solution for branch offices that includes features such as:
• Secure connectivity : Secure collaborative communications with Group Encrypted Transport VPN, Dynamic Multipoint VPN (DMVPN), or Enhanced Easy VPN
• Integrated threat control : Responding to sophisticated network attacks and threats using Cisco IOS Firewall, Cisco IOS Zone-Based Firewall, Cisco IOS IPS, Cisco IOS Content Filtering, and Flexible Packet Matching (FPM)
• Identity management : Intelligently protecting endpoints using technologies such as authentication, authorization, and accounting (AAA) and public key infrastructure (PKI)
Wireless and Mobility Services
Wireless LAN/WAN : The Cisco Integrated Services Routers supporting the Cisco Unified Wireless Architecture enable deployment of secure, manageable wireless LANs (WLANs) optimized for remote sites and branch offices, including fast secure mobility, survivable authentication, and simplified management. The Cisco Wireless LAN Controller Module on the Cisco 2900 Series allows small and medium-sized businesses (SMBs) and enterprise branch offices to cost-effectively deploy and manage secure WLANs. Cisco Wireless LAN Controllers work in conjunction with Cisco lightweight access points and the Cisco Wireless Control System (WCS) to provide system-wide WLAN functions, managing up to 6, 12, and 25 access points.
Wireless WAN : Cisco third-generation (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) providing you with a true multipath WAN backup and the ability to rapidly deploy primary WAN connectivity. For more information about 3G solutions on Cisco Integrated Services Routers
Integrated LAN Switching : The Cisco 2900 Integrated Services Routers (Cisco 2911 through Cisco 2951) support the new Cisco Enhanced EtherSwitch® Service Modules, which greatly expand router capabilities by integrating industry-leading Layer 2 or Layer 3 switching with feature sets identical to those found in the Cisco Catalyst 2960 and Catalyst 3650-E Series Switches performing local line-rate switching and routing. The new Cisco Enhanced EtherSwitch Service Modules take advantage of the increased power capabilities on the Cisco 2900 ISRs. Additionally, the Cisco Enhanced EtherSwitch modules enable the newest Cisco power initiatives, Cisco EnergyWise, Cisco Enhanced Power over Ethernet (ePoE), per-port PoE power monitoring, and RPS-enabled PoE boost. These technologies allow you to meet increased endpoint power requirements without increasing the total power consumption of the branch.
Table 4. Cisco 2900 ISR G2 Series IOS Software Features and Protocols Support
| Feature | Support |
| Protocols | IPv4, IPv6, Static Routes, Open Shortest Path First (OSPF), Enhanced IGRP (EIGRP), Border Gateway Protocol (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), Bi-Directional Forwarding Detection (BVD), IPv4-to-IPv6 Multicast, MPLS, L2TPv3, 802.1ag, 802.3ah, L2 and L3 VPN. |
| Encapsulation | 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), Point-to-Point Protocol over Ethernet (PPPoE), and ATM. |
| Traffic Management | QoS, Class-Based Weighted Fair Queuing (CBWFQ), Weighted Random Early Detection (WRED), Hierarchical QoS, Policy-Based Routing (PBR), Performance Routing (PfR), and Network-Based Advanced Routing (NBAR). |
Table 5. Cisco 2900 Integrated Services Router Product Specifications
| Cisco 2901 | Cisco 2911 | Cisco 2921 | Cisco 2951 | |
| Embedded Hardware-Based Cryptography and Acceleration | Yes | Yes | Yes | Yes |
| Cisco Unified SRST Sessions | 35 | 50 | 100 | 250 |
| Cisco Unified CCME Sessions | 35 | 50 | 100 | 150 |
| Total Onboard WAN 10/100/1000 Ports | 2 | 3 | 3 | 3 |
| RJ-45-Based Ports | 2 | 3 | 3 | 3 |
| SFP-Based Ports (use of SFP port disables the corresponding RJ-45 port) | 0 | 0 | 1 | 1 |
| Service Module Slots | 0 | 1 | 1 | 2 |
| Double-Wide Service Module Slots (use of a double-wide slot will occupy all single-wide service module slots in a 2900) | 0 | 0 | 1 | 1 |
| EHWIC Slots | 4 | 4 | 4 | 4 |
| Double-Wide EHWIC Slots (use of a double-wide EHWIC slot will consume two EHWIC slots) | 2 | 2 | 2 | 2 |
| ISM Slots | 1 | 1 | 1 | 1 |
| Onboard DSP (PVDM) Slots | 2 | 2 | 3 | 3 |
| Memory DDR2 ECC DRAM - Default | 512 MB | 512 MB | 512 MB | 512 MB |
| Memory (DDR2 ECC DRAM) - Maximum | 2 GB | 2 GB | 2 GB | 2 GB |
| Compact Flash (External) - Default | slot 0: 256 MB slot 1: none | slot 0: 256 MB slot 1: none | slot 0: 256 MB slot 1: none | slot 0: 256 MB slot 1: none |
| Compact Flash (External) - Maximum | slot 0: 4 GB slot 1: 4 GB | slot 0: 4 GB slot 1: 4 GB | slot 0: 4 GB slot 1: 4 GB | slot 0: 4 GB slot 1: 4 GB |
| External USB 2.0 Flash Memory Slots (Type A) | 2 | 2 | 2 | 2 |
| USB Console Port (Type B) (up to 115.2 kbps) | 1 | 1 | 1 | 1 |
| Serial Console Port | 1 | 1 | 1 | 1 |
| Serial Auxiliary Port | 1 | 1 | 1 | 1 |
| Power-Supply Options | AC and PoE | AC, PoE, and DC | AC, PoE, and DC | AC, PoE, and DC |
| RPS Support (External) | No | Cisco RPS 2300 | Cisco RPS 2300 | Cisco RPS 2300 |
Table 6. Cisco 2900 Series Basic Ordering Information
| Cisco 2901 | |
| CISCO2901/K9 | Cisco 2901 with 2 onboard GE, 4 EHWIC slots, 2 DSP slots, 1 ISM slot, 256MB CF default, 512MB DRAM default, IP Base |
| CISCO2911/K9 | Cisco 2911 with 3 onboard GE, 4 EHWIC slots, 2 DSP slots, 1 ISM slot, 256MB CF default, 512MB DRAM default, IP Base |
| CISCO2921/K9 | Cisco 2921 with 3 onboard GE, 4 EHWIC slots, 3 DSP slots, 1 ISM slot, 256MB CF default, 512MB DRAM default, IP Base |
| CISCO2951/K9 | Cisco 2951 with 3 onboard GE, 4 EHWIC slots, 3 DSP slots, 1 ISM slot, 256MB CF default, 512MB DRAM default, IP Base |
| SL-29-DATA-K9 | Data License for Cisco 2901-2951 |
| SL-29-UC-K9 | Unified Communications License for Cisco 2901-2951 |
| SL-29-SEC-K9 | Security License for Cisco 2901-2951 |