infix

=== OSPF with multiple areas
==== Description
This test test alot of features inside OSPF using 3 areas (one NSSA area)
to test the distribution of routes is deterministic (using cost), also test
link breaks using BFD (not implemented in infamy though)

==== Topology
ifdef::topdoc[]
image::../../test/case/ietf_routing/ospf_multiarea/topology.png[OSPF with multiple areas topology]
endif::topdoc[]
ifndef::topdoc[]
ifdef::testgroup[]
image::ospf_multiarea/topology.png[OSPF with multiple areas topology]
endif::testgroup[]
ifndef::testgroup[]
image::topology.png[OSPF with multiple areas topology]
endif::testgroup[]
endif::topdoc[]
==== Test sequence
. Configure targets
. Wait for all neighbor to peer
. Wait for routes from OSPF on all routers
. Verify Area 0.0.0.1 on R3 is NSSA area
. Verify on R3, there are no routes beyond 10.0.23.1, just a default route
. Testing connectivitiy through NSSA area, from PC:data3 to 11.0.8.1
. Verify that the route to 10.0.0.3 from PC:data4, go through 10.0.41.2
. Break link R1:ring2 --- R4:ring1
. Verify that the route to 10.0.0.3 from PC:data4, go through 10.0.24.1


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