- Written by Sulyab Thottungal Valapu
- Posted on October 29, 2020
- Updated on October 17, 2024
- 8408 Views
This document describes the OSPFv2 and OSPFv3 feature that allows enabling or disabling the inclusion of LSAs having ¡°Down¡± (DN) bit set in SPF calculations. The DN Bit is a loop prevention mechanism implemented when OSPF is used as CE - PE IGP protocol.