- Written by Sulyab Thottungal Valapu
- Posted on 10月 29, 2020
- Updated on 10月 17, 2024
- 6910 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.