Cisco IP Multiplexing Feature License - License - 1 Router - ESD - For P/N: Cisco5921-K9 - L-FL-IPMULT-SML

• Increased bandwidth efficiency on pps-constrained lines (for example, satellite)
• Potential savings in processing load for IP Security (IPsec)-encrypted traffic
• Single-box solution
• No need to for additional piece of equipment
• Cisco IOS Software feature, single command-line interface (CLI), and no need for additional configuration
• Or management
• No manipulation of voice stream; codec quality is maintained
• Application-agnostic
• No need to duplicate dial plans or deal with complex call routing
• Ability to multiplex any IP packet, not just VoIP
• Other good targets, including video and other small User Datagram Protocol (UDP) streams

Cisco IP Multiplexing improves bandwidth efficiency over a packets-per-second (pps)-constrained link by using proprietary multiplexing schemes to combine multiple small IP packets from a single stream, or multiple streams, into a large packet, and then sending this large packet over the pps-constrained link. A demultiplexing process is then executed by another instance of the same product on the other end of the pps-constrained link. Cisco IP Multiplexing automatically engages when multiple packets are heading for the same destination. Prior to multiplexing, each additional voice over IP (VoIP) call would use up multiple pps slots. Multiplexing the VoIP packets from multiple calls within the same larger packet means that addition of another VoIP call stream may not require more pps slots, meaning that more of the pps slots can be used by other applications. Thus Cisco IP Multiplexing increases overall throughput over the constrained link.