Cisco 1921. Networking standards: IEEE 802.1Q,IEEE 802.3,IEEE 802.3ah,IEEE 802.3u, Ethernet interface type: Gigabit Ethernet, Cabling technology: 10/100/1000Base-T(X). Routing protocols: BGP,IP,IS-IS,MPLS,OSPF, Management protocols: QoS, CBWFQ, WRED, PBR, PfR, NBAR, Supported network protocols: IPv4, IPv6, IGMPv3. Security algorithms: 3DES,DES,WPA-AES, Firewall security: Cisco IOS. Flash memory: 256 MB, Internal memory: 512 MB, Internal memory type: DRAM. Product colour: Multicolor, Rack capacity: 1U

Cisco 1900 Series Integrated Services Routers 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 rich-media 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