Hello ! Why area 0 is required in OSPF? I have read multiple blogs but didn't find any satisfactory answer, some says-
+ Area 0 implemented for loop prevention. if yes.. then a big HOW ?? + Area 0 is implemented to allow a level of hierarchy and to allow OSPF and to provide summarisation/filtering across area boundaries.. if yes.. then Cann't we implement hierarchy or summarization without area 0 ??? + Design constraint.. if yes.. then WHAT is the design constraint.. there must be some logical reason behind it ???? -- Regards, *Sanjay Singh* Mob-9717775461 _______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com
