Join Greg Sowell for an in-depth discussion in this video OSPF areas, part of Networking Foundations: Network Media (WANs).
- [Voiceover] While areas in OSPF shrink the LSDB,…it can also perform some other functions…depending on their flavor.…Non-backbone areas can be one of five different types.…Standard, stubby, totally stubby and not so stubby.…In a standard area, all routers produce and share…a type one router LSA.…It contains all the links that a router has in the area…and is sent to all neighbors in the area.…A DR in the area will then take this information…and produce and share a type two network LSA…with all other routers in this area.…
When information from one area is advertised into…another area by an ABR, it is done in the form…of a type three summary LSA.…Type one and type two don't traverse area boundaries.…These summary LSAs strip out most of the topology…information and transfer prefix and metric.…A type five external LSA is generated by an ASBR…as a router is redistributed into the route process.…A type four ASBR summary is also generated by an ABR…to give a cost to reach the injecting ASBR.…
An external LSA in then sent to all areas…
He discusses different WAN technologies and features such as speeds, spans, and price points—including inexpensive options such as VPN. He then covers switches (the devices that connect computers in your building) and routers (devices that control the transmission of network data). Along the way, Greg shows how to build private connections, implement free networking over the Internet, build switch networks, and overlay-routed networks. He'll also introduce different routing protocols, such as OPSF link-state routing and distance-vector routing with RIPv2, EIGRP, and BGP.
Note that this course maps to domains 1 and 2 of the Microsoft Technology Associate (MTA) Networking Fundamentals certification exam (98-366).
- Understanding the technology: from dial-up to VPNs
- Working with hubs, bridges, and switches
- Ensuring hardware redundancy
- Using switching types and MAC tables
- Preventing bridge loops with STP
- Routing with routing tables
- Using NAT
- Securing your switches and routers
- Setting up firewalls
- Working with different routing protocols: RIPv2, OSPF, EIGRP, and more
Skill Level Beginner
Networking Foundations: Network Media (LANs)with Greg Sowell1h 9m Intermediate
1. WAN Technologies
4. Routing Protocols
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