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49 lines
1.8 KiB
Plaintext
49 lines
1.8 KiB
Plaintext
=== OSPF with Multiple Areas
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ifdef::topdoc[:imagesdir: {topdoc}../../test/case/routing/ospf_multiarea]
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==== Description
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This test evaluates various OSPF features across three areas (one NSSA area, with no summary)
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to ensure that route distribution is deterministic (based on cost). It also tests link
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failures using BFD, though BFD is not yet implemented in test framework (Infamy).
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This test also verifies broadcast and point-to-point interface types on /30 network, and
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explicit router-id.
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....
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+-------------+ +---------------+ +-------------+ +---------------+
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| R1 | | R2 | | R3 | | R4 |
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| 10.0.0.1/32 | | 10.0.0.2/32 | | 10.0.0.3/32 | | 10.0.0.4/32 |
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| (lo) | | 11.0.9.1/24 | | (lo) | | (lo) |
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+-------------+ | 11.0.10.1/24 | +-------------+ +---------------+
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| 11.0.11.1/24 |
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| 11.0.12.1/24 |
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| 11.0.13.1/24 |
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| 11.0.14.1/24 |
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| 11.0.15.1/24 |
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| (lo) |
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+---------------+
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....
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==== Topology
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image::topology.svg[OSPF with Multiple Areas topology, align=center, scaledwidth=75%]
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==== Sequence
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. Set up topology and attach to target DUTs
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. Configure targets
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. Wait for all neighbors to peer
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. Wait for routes from OSPF on all routers
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. Verify Area 0.0.0.1 on R3 is NSSA area
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. Verify R1:ring2 is of type point-to-point
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. Verify R4:ring1 is of type point-to-point
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. Verify on R3, there are no routes beyond 10.0.23.1, just a default route
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. Testing connectivity through NSSA area, from PC:data3 to 11.0.8.1
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. Verify that the route to 10.0.0.3 from PC:data4, go through 10.0.41.2
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. Break link R1:ring2 --- R4:ring1
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. Verify that the route to 10.0.0.3 from PC:data4, go through 10.0.24.1
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