# Configuring OSPF

This chapter provides information for configuring the Open Shortest Path First (OSPF) routing protocol on your E Series router; it contains the following sections:

- Overview
- Platform Considerations
- References
- Features
- OSPF Configuration Tasks
- Starting OSPF
- Aggregating OSPF Networks
- Configuring OSPF Interfaces
- Configuring OSPF Areas
- Optimizing the Cost to Reach a Range of OSPF Routers Within an Area
- Configuring Authentication
- Configuring the BFD Protocol for OSPF
- Configuring Additional Parameters
- Configuring OSPF for NBMA Networks
- Traffic Engineering
- Using OSPF Routes for Multicast RPF Checks
- OSPF and BGP/MPLS VPNs
- Remote Neighbors
- Configuring OSPF Graceful Restart
- Disabling and Reenabling Incremental SPF
- Configuring OSPF Traps
- Neighbor Uptime Tracking
- Monitoring OSPF