Cisco ISR 1900 CISCO1921/K9 Cisco Integrated Services Router (ISR)
Brand: Cisco | Category: Network Equipment
SKU: CSC-CISCO1921K9 | Part #: CISCO1921/K9 | MPN: CISCO1921/K9
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About the Cisco ISR 1900 CISCO1921/K9 Cisco Integrated Services Router (ISR)
QoS, traffic shaping, BGP/OSPF, and app-aware routing capabilities define the Cisco ISR 1900 CISCO1921/K9, a purpose-built Integrated Services Router (ISR G2) that bridges branch office connectivity with enterprise-grade security and performance management. This desktop/rack-mountable unit (1U with optional rack kit) delivers two 10/100/1000 Mbps Gigabit Ethernet ports for WAN and LAN connectivity, backed by 512 MB of default DRAM and 256 MB of Flash Memory. The router ships with Cisco IOS IP Base and supports modular expansion via two EHWIC slots, enabling organizations to customize functionality without wholesale hardware replacement. Console access is provided through both RJ-45 async serial and USB mini-B ports, with an additional auxiliary RJ-45 port for flexible management workflows.
Network engineers and IT procurement teams responsible for branch office routing and security select the CISCO1921/K9 for its comprehensive protocol support—OSPF, EIGRP, BGP, IS-IS, RIP, and Static routing—combined with defense-in-depth features including Zone-Based Policy Firewall, IPsec, SSL VPN, DMVPN, and GET VPN. The router's IPv6 readiness and MPLS support ensure compatibility with modern enterprise architectures, while class-based queuing, shaping, policing, and DSCP/CoS marking allow granular traffic control in congested WAN environments. License upgrades in Security, Unified Communications, and Data expand functionality to match evolving business requirements.
Omnixon Global stocks the Cisco ISR 1900 CISCO1921/K9 for immediate deployment across the UAE and regional markets. To request a formal quotation, technical specifications sheet, or bulk pricing for your branch office or data center refresh initiative, submit an RFQ through Omnixon Global today.
Technical Specifications
| Brand | Cisco |
| Category | Network Equipment |
| SKU | CSC-CISCO1921K9 |
| Part Number | CISCO1921/K9 |
| Condition | New |
| Manufacturer Part Number | CISCO1921/K9 |
| Product Series | ISR 1900 |
| Product Line | Integrated Services Router Generation 2 (ISR G2) |
| Form Factor | Desktop / Rack-mountable (1U with optional rack kit) |
| Built-in WAN/LAN Ports | 2 x 10/100/1000 Mbps Gigabit Ethernet (RJ-45) |
| EHWIC Slots | 2 |
| USB Ports | 1 x USB Type-A (storage/bootstrap), 1 x USB mini-B (console) |
| Console Port | 1 x RJ-45 async serial console |
| Auxiliary Port | 1 x RJ-45 |
| Flash Memory (default) | 256 MB |
| DRAM (default) | 512 MB |
| Default IOS Software | Cisco IOS IP Base |
| Supported License Upgrades | Security, Unified Communications, Data |
| Routing Protocols | OSPF, EIGRP, BGP, IS-IS, RIP, Static |
| VPN Support | IPsec, SSL VPN, DMVPN, GET VPN |
| Firewall | Zone-Based Policy Firewall (IOS Firewall feature set) |
| MPLS Support | Yes |
| QoS | Yes — class-based queuing, shaping, policing, DSCP/CoS marking |
| IPv6 Support | Yes |
| Power Supply | Internal AC power supply (100–240 V AC, 50–60 Hz) |
| Operating Temperature | 0°C to 40°C (32°F to 104°F) |
Frequently Asked Questions about Cisco ISR 1900 CISCO1921/K9 Cisco Integrated Services Router (ISR)
What does the Cisco ISR 1900 CISCO1921/K9 Cisco Integrated Services Router (ISR) do?
The Cisco ISR 1900 CISCO1921/K9 Cisco Integrated Services Router (ISR) is enterprise networking hardware for data-center, campus, and branch deployments. Common roles include core/distribution switching, server uplinks, top-of-rack fabric, and edge connectivity in mixed Cisco/Juniper/Arista environments.
Is the Cisco ISR 1900 CISCO1921/K9 Cisco Integrated Services Router (ISR) compatible with my infrastructure?
The Cisco ISR 1900 CISCO1921/K9 Cisco Integrated Services Router (ISR) interoperates with standard switching protocols (LACP, MLAG/VPC, 802.1Q, OSPF/BGP). For specific cross-vendor scenarios — Cisco-to-Arista MLAG peering, fabric integration with Cumulus/SONiC, or migration from legacy Catalyst — our network engineers map a compatibility plan as part of the RFQ.