Category Archives: ROUTE

CCNP ROUTE Study – OSPF DR/BDR Elections (and how to rig them….)

When multiple OSPF routers are connected to a multi-access medium such as Ethernet, a Designated Router (DR) and a Backup Designated Router (BDR) are elected. DR’s reduce network traffic as only they maintain the complete ospf database and then send updates to the other routers on the shared network segment. The other routers become ‘slaves’ […]