IS-IS Reverse Metric TLV for Network Maintenance Events
This document describes an improved IS-IS neighbor management scheme which can be used to enhance network performance by allowing operators to quickly and accurately shift traffic away from a point- to-point or multi-access LAN interface by allowing one IS-IS router to signal to a second, adjacent IS-IS neighbor to adjust its IS-IS metric that should be used to temporarily reach the first IS-IS router during network maintenance events.