Chapter 9


Have-A-Seat

  1. For Have-A-Seat, a link-state routing protocol would be preferable to a distance-vector routing protocol for a number of reasons. First of all, faster convergence time is always an issue. Dave has mentioned that he wants redundant links in case of failure for the production facilities, and this indicates the importance of availability. Static routing would be difficult to maintain should the network change at all.

  2. Either EIGRP (technically a hybrid) or OSPF would be best. Since Have-A-Seat has no experience running IP routing protocols, their staff thus would have to be trained to use either one. If the customer had reservations about using a proprietary routing protocol, which would hinder interoperability should the customer introduce non-Cisco routing devices to the internetwork, OSPF would be a better choice.

  3. Have-A-Seat will not need bridging configured in Atlanta. True, they do have both Ethernet and Token Ring, but they are switching all of their devices to TCP/IP for communications (including their mainframe). TCP/IP will route just fine between Ethernet and Token Ring. If they were not migrating away from SNA, bridging would be an issue. However, here it is not.

Willow Creek School District

  1. In this case, EIGRP may well be the best choice. It is the only routing protocol capable of routing all three of Scott’s routed protocols. You could recommend OSPF to Scott for IP routing, and NLSP for IPX routing, but you would probably need to recommend EIGRP for AppleTalk routing. In this case, it may well be simpler to standardize on EIGRP for all three routed protocols. Of course, EIGRP is proprietary so you will need to educate the customer to this issue. Also, you will need to support SAP/RIP (IPX) and RTMP (AppleTalk) in the LAN environments for the customer’s clients. However, you would only need EIGRP on the WAN.




CCDA. Cisco Certified Design Associate Study Guide
CCDA: Cisco Certified Design Associate Study Guide, 2nd Edition (640-861)
ISBN: 0782142001
EAN: 2147483647
Year: 2002
Pages: 201

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