BSCI Chapter 7 Q&A Clarification?
[FONT="]11.[FONT="] [/FONT][/FONT][FONT="]What issues may emerge when running OSPF within an area containing a Frame Relay NBMA cloud?[/FONT]
Answer: Having a Frame Relay NBMA cloud within one OSPF area causes summary LSAs to be flooded throughout the NBMA network. This results in a large number of routers recalculating whenever there is a change that requires the topology table to be updated, and the Frame Relay cloud can become saturated. If the Frame Relay cloud has a problem, the entire network could suffer.
Ok.. I thought summary LSA's were only send BETWEEN areas.. Any ideas?
Answer: Having a Frame Relay NBMA cloud within one OSPF area causes summary LSAs to be flooded throughout the NBMA network. This results in a large number of routers recalculating whenever there is a change that requires the topology table to be updated, and the Frame Relay cloud can become saturated. If the Frame Relay cloud has a problem, the entire network could suffer.
Ok.. I thought summary LSA's were only send BETWEEN areas.. Any ideas?
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EdTheLad
Member Posts: 2,111 ■■■■□□□□□□
Ok.. I thought summary LSA's were only send BETWEEN areas.. Any ideas?
Summary LSAs are generated at the ABR and flooded throughout an area.In the case you mentioned the ABR can have a FR interface connected to other router within the area.Networking, sometimes i love it, mostly i hate it.Its all about the $$$$