C1121-4P - Cisco Router ISR 1100
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C1121-4P Overview
ISR 1100 4P Dual GE SFP Router C1121-4P
Overview
C1121-4P Overview
Cisco C1121-4P, Ethernet WAN, Gigabit Ethernet, Silver
Cisco® 1000 Series Integrated Services Routers (ISRs) with Cisco IOS® XE Software combine Internet access, comprehensive security, and wireless services (LTE Advanced 3.0 wireless WAN and 802.11ac wireless LAN) in a single, high-performance device. The routers are easy to deploy and manage, with separate data and control plane capabilities.
Quick Specs
Product Code | C1121-4P |
Product Description | ISR 1100 4P Dual GE SFP Router |
Memory (default and maximum) | DRAM: 4 GB Flash: 4 GB |
Dimensions (H x W x D) | 1.65 x 12.7 x 8.9 in. (41.9 x 322 x 226 mm) |
Product Details
ISR 1100Series provides these features:
•Lightweight, compact size with low power consumption
•High performance to run concurrent services
•High availability and business continuity
•Consistent, high application performance levels
•Risk mitigation with multilevel security
•Unified control of wired and wireless networks from a common console for streamlined operations
•Remote configuration and management to keep local IT staff lean
•Performance
-Throughput
-Service reliability
•Lower WAN expenditures
•Pay as you grow: IPsec performance upgrade model
•IT consolidation, space savings, and improved Total Cost of Ownership (TCO)
•Business continuity and increased resiliency
Architectural highlights：
•Multicore processors
•Embedded IPsec VPN hardware acceleration
•Integrated Gigabit Ethernet ports
•USB-based console access
•Optional PoE upgrade
•Flash memory support
•DRAM
.
Business need | Features/description |
Lightweight, compact size with low power consumption | •Can be deployed in many different environments where space, heat dissipation, and low power consumption are critical factors (Including Cisco Pluggable smaller form factor technology). |
High performance to run concurrent services | •High performance allows customers to take advantage of broadband network speeds while running secure, concurrent data, voice, video, and wireless services. C1160 models will have better overall performance. |
High availability and business continuity | •Redundant WAN connections for failover protection and load balancing. •Dynamic failover protocols such as Virtual Router Redundancy Protocol (VRRP; RFC 2338), Hot Standby Router Protocol (HSRP), and Multigroup HSRP (MHSRP). |
Consistent, high application performance levels | •The router can run multiple services simultaneously with minimal performance degradation. |
Risk mitigation with multilevel security | •Network perimeter security with integrated application inspection firewall. •Data privacy through high-speed IP Security (IPsec) Triple Data Encryption Standard (3DES), and Advanced Encryption Standard (AES) encryption. •High-performance VPNs: DMVPN, FlexVPN, GETVPN. •Encrypted Traffic Analytics (ETA) to identify malware communications in encrypted traffic using passive monitoring, extraction of relevant data elements, and supervised machine learning with cloud-based global visibility. •Cisco Umbrella™ is a cloud security platform that provides the first line of defense against threats on the internet wherever users go. •Security hardware acceleration. •Trustworthy systems with Field-Programmable Gate Array (FPGA) and hardware anchor. |
Unified control of wired and wireless networks from a common console for streamlined operations | •Simplifies and centralizes configuration and management of wireless and wireline devices. Supports WLAN services without requiring a wireless LAN controller. •Supports Mobility Express for WLAN-enabled routers. |
Remote configuration and management to keep local IT staff lean | •Supports separate console and USB ports. Can be configured to work with optional USB token. •Supports TR-069. |
Performance •Throughput •Service reliability | •ISR 1100 can provide encrypted traffic performance greater than 350 Mbps. •A distributed multicore architecture with the dedicated control plane and service plane. •Remote installation of application-aware services that run identically to their counterparts in dedicated appliances (Future roadmap). |
Lower WAN expenditures | •Cisco Software-Defined WAN (SD-WAN) support for optimized WAN connection. •Smaller form factor and Cisco Pluggable technology provide additional protection investment and flexibility. |
Pay as you grow: IPsec performance upgrade model | •Router IPsec capacity can be increased with a remote performance-on-demand license upgrade (no hardware upgrade) for exceptional savings and CapEx budget management. |
IT consolidation, space savings, and improved Total Cost of Ownership (TCO) | •Single converged branch platform integrates routing, switching, security, and performance management capabilities. |
Business continuity and increased resiliency | •The entire 1000 Series supports Power over Ethernet (PoE) and PoE+ power to endpoints (Not available on C1101 and C1109 smaller form factor series). |
Licenses | Description |
SL-1100-4P-APP | AppX License for Cisco ISR 1100 4P Series |
C1-SL-1100-4P-APP | AppX Foundation License for Cisco ISR 1100 4P Series |
SL-1100-4P-SEC | Security License for Cisco ISR 1100 4P Series |
Security License for Cisco ISR 1100 4P Series | |
NPE Security License for Cisco ISR 1100 4P Series |
Small Form-Factor Pluggable Supported
Small Form-Factor Pluggable | ISR 1100 8P | ISR 1100 4P | Description |
Yes | Yes | 1000BASE-EX SFP transceiver module, SMF, 1310nm, DOM. | |
Yes | Yes | GE SFP, LC connector LX/LH transceiver; with DOM. | |
Yes | Yes | GE SFP, LC connector SX transceiver; with DOM. | |
Yes | Yes | 1000BASE-ZX SFP; with DOM. | |
Yes | Yes | 100BASE-ZX SFP (80km). | |
Yes | Yes | 1000BASE-BX SFP, 1490NM. | |
Yes | Yes | 1000BASE-BX SFP, 1310NM. |
Compare to Similar Items
Model | Product Description |
C1121-4P | ISR 1100 4P Dual GE SFP Router |
C1121-4PLTEP | ISR 1100 4P Dual GE SFP Router Pluggable SMS/GPS |
C1121-8PLTEP | ISR 1100 8P Dual GE SFP Router Pluggable SMS/GPS |
SFP, PoE, Micro USB, LAN: 4x 10/100/1000 Mbps, WAN: 1x 10/100/1000 Mbps, 12V, 2A
- Ethernet WAN
- Gigabit Ethernet
- Web-based management
- 802.1x RADIUS, IPSec, WPA2-AES, WPA2-RADIUS
Summary Description
Cisco C1121-4P, Ethernet WAN, Gigabit Ethernet, Silver
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Specification
C1121-4P Specification
C1121-4P Specification | |
Product Code | C1121-4P |
Product Description | ISR 1100 4P Dual GE SFP Router |
Memory (default and maximum) | •DRAM: 4 GB Only C1111X-8P,C1121X-8P,C1126X,C1127X, C1161X models have 8GB DRAM •Flash: 4 GB Only C1111X-8P,C1121X-8P,C1126X,C1127X, C1161X models have 8GB Flash |
Console | •Micro USB console (Type A). •RJ45. |
Micro-USB port (reserved) | •Micro-USB port to support remote LTE diagnostics and monitoring tools (Qualcomm CAIT and Spirent UDM) (USB 3.0). |
WLAN interfaces | •Multiuser Multiple-Input Multiple-Output (MU-MIMO) allows transmission of data to multiple 802.11ac Wave 2–capable clients simultaneously to improve the client experience. Prior to MU-MIMO, 802.11n and •802.11ac Wave 1 access points could transmit data to only one client at a time, typically referred to as Single-User MIMO (SU-MIMO). •802.11ac Wave 2 with 2x2:2 MIMO technology uses two spatial streams when operating in SU-MIMO or MU-MIMO mode, offering 867-Mbps rates for more capacity and reliability than competing access points. •Flexible deployment through the Mobility Express solution is ideal for small to medium-sized deployments. Easy setup allows the 1000 Series (similar to 1815i) to be deployed on networks without a physical controller. •For more information, view the Cisco Aironet 1815i Access Point Data Sheet. |
Maximum clients
| •Maximum number of associated wireless clients: 200 per Wi-Fi radio; in total 400 clients per access point. C1109-4PLTEP and C1109-4PLTEW models come with default dual W-ANTM2050D-RPSMA external antenna and all modem have default 8.8 AP autonomous or Mobility Express release. Option to select 8.8 CAPWAP WLC image. |
Authentication and security | •AES for Wi-Fi Protected Access 2 (WPA2). •802.1X, RADIUS AAA. •802.11r and 802.11i. |
802.11ac | •2x2 SU-MIMO/MU-MIMO with two spatial streams. •Maximal Ratio Combining (MRC). •20-, 40-, and 80-MHz channels. •PHY data rates up to 866.7 Mbps (80 MHz on 5 GHz). •Packet aggregation: A-MPDU (Tx/Rx), A-MSDU (Rx). •802.11 Dynamic Frequency Selection (DFS). •Cyclic Shift Diversity (CSD) support. |
Software | •Cisco IOS Software feature set: Universal Cisco IOS XE 16.6.1 Software image or later. C1112, C1113, and C1101 models support starting with IOS XE 16.8.1 Software image or later. C1118, C1111X-8P and C1109 models support with IOS XE 16.9.1 Software image or later. •Cisco IOS Software feature set: C1120 and C1160 models Universal Cisco IOS XE 16.11.1 Software image or later. •Cisco Unified Wireless Network Software with AireOS Wireless Controllers Release 8.5 (migration to 8.8 starting March, 2019 and 8.8 for 1101 and 1109 Models) MR1 or later. |
Serial WAN interface and protocol
| •Support for both synchronous and bisync modes. •Synchronous maximum speed of up to 8 Mbps. •Support for bisync modes. •Support for network clock synchronization. •EIA-232, EIA-449, EIA-530, EIA-530A, V.35, and X.21. |
Inline PoE | •Optional internal adapter for inline PoE on 4 switch ports for IP phones or external wireless access points; 802.3af-compliant PoE or 802.3at-compliant PoE+. |
External power supply | Product power specifications: C111X, C1120 and C1160 Models •AC input voltage: Universal 100 to 240 VAC. •Frequency: 50 to 60 Hz. •Maximum output power: 66W (default). •Output voltages: 12 VDC. •Optional PoE and PoE+: -Single 150W power supply required for Cisco 1100-8P series router -Single 115W power supply required for Cisco 1100-4P series router •External output voltage: 48 VDC. C1101-4PLTEPWX and C1109-4PLTE2PWX Models: •AC input voltage: Universal 100 to 240 VAC. •Frequency: 50 to 60 Hz. •Maximum output power: 66W (default iTemp for C1109-4PLTE2PWX Models). •Output voltages: 12 VDC. C1101-4P, C1101-4PLTEP,C1109-2PLTE, and C1109-4PLTE2P Models: •AC input voltage: Universal 100 to 240 VAC. •Frequency: 50 to 60 Hz. •Maximum output power: 30W (default iTemp for Models). •Output voltages: 12 VDC. |
USB 3.0 | •USB devices supported: -USB eTokens and USB flash memory •Devices USB 3.0 supports to be connected externally. View the USB Device Support Data Sheet . |
EDs | •WWAN (green/amber). •SIM status (green/amber). •Received signal strength indication (RSSI) bar (green). •3G/LTE service (green/amber). •GPS (green/amber). •Speed and link for Gigabit Ethernet WAN port (green). •Speed and link for all Fast Ethernet LAN ports (green). |
Physical dimensions (H x W x D) | C111X Models •1.75 x 12.7 x 9.6 in. (44 x 323 x 244 mm) (includes rubber feet on LTE models). •1.75 x 12.7 x 9.03 in. (42 x 323 x 230mm) (includes rubber feet on non-LTE models). C1120 Models •1.65 x 12.7 x 8.9 in. (41.9 x 322 x 226 mm). C1160 Models •1.65 x 10.8 x 7.85 in. (41.9 x 274 x 199 mm). C1101-4PLTEP and C1101-4PLTEPWX Models •1.73 x 9.75 x 6.6 in. (43.9 x 247.6 x 167.6 mm) (includes rubber feet models). C1101-4P Models •1.1 x 7.5 x 6.0 in. (27.9 x 190.5 x 152.4 mm) (includes rubber feet models). C1109-2PLTE Models •1.27 x 8.4 x 6.0 in. (32.3 x 213.4 x 152.4mm) (includes rubber feet models). C1109-4PLTE2P and C1109-4PLTE2PWX Models (ship default with dual W-ANTM2050DRPSMA Wi-Fi antennae) •1.71 x 11.16 x 9.8 in. (43.4 x 283.5 x 248.9 mm) (includes rubber feet models). Pluggable •0.85 x 2.5 x 3.88 in. (21.6 x 63.5 x 98.5 mm). |
Standard safety certifications | •UL 60950-1.and EN 60950-1. •CAN/CSA C22.2 No. 60950-1. •CB to IEC 60950-1, 2 nd edition with all group differences and national deviations. |
EMC emissions | •EN55022/CISPR22, CFR 47 Part 15, ICES003, VCCI-V-3, AS/NZS CISPR22, CNS13438, EN300-386, EN61000-3-2, EN61000-3-3, and EN61000-6-1. |
EMC immunity | •EN55024/CISPR24, (EN61000-4-2, EN61000-4-3, EN61000-4-4, EN61000-4-5, EN61000-4-6, EN61000-4-11), and EN300-386. |
Radio immunity | •EN301 489-1, EN 301 489-7, and EN301 489-24. |
Cellular radio | •EN 301 908-1, EN 301 908-2, EN 301 511, 47 CFR Part 22, 47 CFR Part 24, and EN 301 908-13. |
Environmental operating range | •Nonoperating temperature: -4° to 149°F (-20° to 65°C). •Nonoperating humidity: 5% to 95% relative humidity (noncondensing). •Nonoperating altitude: 0 to 15,000 ft (0 to 4570 m). •Operating temperature: 32° to 104°F (0° to 40°C). C1101 support 32° to 113°F (0° to 45°C). C1109-2PLTE support 32° to 122°F (0° to 50°C). C1109-4PLTE2P and C1109-4PLTE2PW models support -4° to 131°F (-20° to 55°C). •Operating humidity: 10% to 85% relative humidity (noncondensing). •Operating altitude: 0 to 10,000 ft (0 to 3000 m at 30°C). Operating altitude: 0 to 10,000 ft (0 to 3000 m at •35°C for C1109-2PLTE models). Operating altitude: 0 to 10,000 ft (0 to 3000 m at 40°C for C1109-4PLTE2P and C1109-4PLTE2PW models). |
Resources
Documents
Frequently Asked Questions
What are the primary connectivity options available on the Cisco C1121-4P? +
The Cisco C1121-4P provides a versatile interface configuration for branch networking. It features four built-in 10/100/1000 Mbps Gigabit Ethernet ports for local connectivity and dual GE SFP ports, which allow for flexible fiber or copper uplinks. This dual-purpose design makes it an ideal compact router for high-performance enterprise edge deployments requiring reliable, scalable connectivity.
Is the C1121-4P suitable for small to medium-sized branch office deployments? +
Absolutely. The C1121-4P is a core member of the Cisco ISR 1100 series, specifically engineered to deliver enterprise-class services in a compact, fanless form factor. Its architecture handles secure SD-WAN, encrypted traffic, and advanced threat defense, making it a robust, space-efficient solution for branch offices that demand high-speed internet connectivity without the bulk of larger chassis-based routers.
How does the C1121-4P handle encrypted traffic performance? +
This router is designed to maintain high throughput even when encryption features are active. By offloading cryptographic processes, the C1121-4P ensures that your VPN tunnels and secure tunnels do not bottleneck your WAN traffic. It is built to support the rigorous security demands of modern enterprise networks, ensuring consistent performance for data-heavy applications and cloud-based services.
Can the Cisco C1121-4P be integrated into an existing SD-WAN architecture? +
Yes, the C1121-4P is fully compatible with Cisco SD-WAN solutions. By deploying this router, you can centralize management and orchestration across your distributed branch locations. It supports the necessary protocols to streamline traffic management, improve application visibility, and dynamically route traffic over multiple transports, effectively modernizing your wide area network infrastructure.
What kind of management interfaces are supported on the C1121-4P? +
The C1121-4P offers multiple management paths to accommodate different network administrator preferences. It supports traditional Cisco IOS CLI (Command Line Interface) for granular control, as well as web-based management tools. Additionally, it integrates with modern automation frameworks and centralized management platforms, allowing for efficient configuration, monitoring, and troubleshooting across your network environment.
Does the C1121-4P support Power over Ethernet (PoE) functionality? +
The C1121-4P design focuses on high-speed routing and WAN optimization rather than integrated PoE switching capabilities. If your specific deployment requires powering IP phones, cameras, or wireless access points directly from the router, you may need to pair this device with an external PoE switch or a power injector to ensure your edge devices remain adequately powered.
What is the form factor and power consumption profile of the C1121-4P? +
The C1121-4P features a small, desktop-mountable form factor that is ideal for locations with limited rack space. Because it is designed to be fanless, it operates silently in office environments. It utilizes an external power supply and is optimized for low power consumption, reflecting a modern, energy-efficient approach to edge computing and enterprise routing needs.
How does the C1121-4P ensure data security at the edge? +
Data security is a hallmark of the ISR 1100 series. The C1121-4P incorporates advanced hardware-based security features, including stateful firewalls, secure boot, and hardware-anchored trust. These features work together to protect the network from unauthorized access and malicious threats, ensuring that branch-to-headquarters or branch-to-cloud traffic remains secure throughout the transmission process.
How can I obtain a competitive quote for bulk orders of the C1121-4P? +
If you are planning a large-scale network refresh or need a significant quantity of C1121-4P routers, our team at BuyRouterSwitch.com is ready to assist. Please contact our sales department directly to discuss your specific requirements. We specialize in providing tailored pricing for volume purchases to help you stay within your project budget while procuring high-quality enterprise hardware.
Why should I choose BuyRouterSwitch.com for my Cisco hardware procurement? +
BuyRouterSwitch.com is your trusted partner for authentic Cisco enterprise networking equipment. We streamline the procurement process by providing a secure online ordering platform and dedicated support for enterprise buyers. When you purchase from us, you receive genuine, reliable hardware from a team that understands the complexities of IT infrastructure and is committed to your project's success.
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