Di Posting Oleh : Simple Learning
Kategori : 10 Minute Lab OSPF
- Configure OSPF area 0 on Ser0/0 of R1, and R2 using default OSPF mode of operation.
- Enable OSPF area 0 on R3�s Ser0/0.123 sub-interface and its Loopback0 interface.
- Ensure there is full reachability and full adjacency in Frame-Relay network configured.
- Ensure R3 can ping 10.0.1.1 (R1's Loopback0) sourced by its Loopback0 interface.
Pic.4
Extra Credit
Take as much time as you need to answer the following questions:- What is the default OSPF mode used on NBMA (non-broadcast, multi-access interfaces) links?
- What is/are compatible OSPF modes with the default mode used on NBMA links?
- What would you configure to make other OSPF mode to be compatible with NBMA?
- What are the default timers (hello/dead) used on NBMA links?
- How are OSPF neighbors discovered on NBMA links?
- Which OSPF routing context command is required for the routers to establish OSPF communication?
- What is going to happen if an OSPF router receives a unicast addressed �hello� packet from its OSPF neighbor?
- What OSPF router roles does NBMA network elect?
- Which command shows the role of the router on a specific NBMA link?
- In case of hub-and-spoke NBMA topology, what OSPF role should spoke routers take (justify your answer)?
- What are the two ways of configuring the required role in a spoke router in NBMA hub-and-spoke topology?
- What is OSPF next-hop behavior on NBMA links in a hub-and-spoke topology? What do you need to take care of regarding next-hop?
- In case of non-broadcast OSPF mode, what does LSDB show as far as the following are concerned (assuming default ospf mode): link connected to, link id, link data?
When you have solved the problem check the hint(s) below:
Lab Hint
- Can R3 reach R1�s Ser0/0 with the default configuration (before you have introduced changes)?
- What NBMA role should the spokes (R1 and R3) play in this configuration?
- Does R3 use 172.16.123.1 address as its next-hop towards 10.0.1.1?
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If you find these labs useful, I would appreciate your feedback. Please send me an email as per following:
If you find these labs useful, I would appreciate your feedback. Please send me an email as per following:
Address: linuxed.jr at gmail.com
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Thank you for your time.
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