Rules and Standards

As OSPF has some challenges in deployment outside of a datacenter environment, we will need to all adhere to some rules to prevent from encountering a routing problem. OSPF, unlike BGP or other protocols, may/will refuse to connect to a peer which has different parameters set and can be a source of confusion.   Please follow these rules unless there is a good reason not to:

General     

All OSPF usage will be on area 0.0.0.0 ( backbone area )      Set Router ID to the 10-69-net address of the Node All OSPF timers will be set to ( this is typically default ):

Link Cost 10 Retransmit Interval 5 Transmit Delay 1 Hello Interval 10 Dead Router Interval 40   1. Interfaces should be in PtMP mode (not broadcast)    OSPF "networks" should only be the 10-69-net, unless there is a special case Redistribute Default Route should be never, unless you are distributing a default route If you are redistributing a default route, do so as type 1  Check with the rest of the network what the correct metric should be Redistribute user networks via Redistribute Connected as type 1  Mikrotik Only: Filter VPN point-to-point /32 links. They cause trouble.    Do not also run BGP, unless there is a special case; take care of metrics in this case.