This was flapping. Very strange though as I cannot determine the cause but the stats are very bad:
Router 172.18.225.6 (rb6.km.ctwug.za.net): Link: 172.18.225.6 (rb6.km.ctwug.za.net) Down 231 time(s)
Router 172.18.225.6 (rb6.km.ctwug.za.net): Link: 172.18.225.8 (rb8.km.ctwug.za.net) Down 231 time(s)
Router 172.18.225.6 (rb6.km.ctwug.za.net): Link: 172.18.239.5 (link-kmwood.km.ctwug.za.net) Down 224 time(s)
And that’s inside an hour