The Open Shortest Path First Routing Protocol is a routing protocol developed for Internet Protocol (IP) networks by the Interior Gateway Protocol (IGP) working group of the Internet Engineering Task Force (IETF). The working group was formed in 1988 to design an IGP based on the Shortest Path First (SPF) algorithm for use in the Internet. Similar to the Interior Gateway Routing Protocol (IGRP), OSPF was created because in the mid-1980s, the Routing Information Protocol (RIP) was increasingly incapable of serving large, heterogeneous internetworks.

In large, redundant networks, variations and errors in routing behavior can be very difficult to understand due to the complexity and rapidity of routing protocols. In addition, engineers need visibility into routing in order to ensure consistent delivery of application performance to their end users. Route analytics technology pioneered by Packet Design provides unique real-time visibility into EIGRP, OSPF, IS-IS and BGP routing behavior, and can be used to analyze OSPF on a network-wide basis.

Packet Design's Route Explorer provides unprecedented visibility and analysis features for OSPF routing. Route Explorer OSPF route analytics features include:

• Real-time, network-wide routing topology visualization and analysis, across multiple protocols, AS, and areas
• Full routing event history navigation -- Move back in time to analyze past OSPF event streams exactly as they happened
• Modeling and simulation of routing changes and failures for more accurate planning and maintenance operations

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