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IS-IS Network Design Solutions by Scott Sturgess, Abe Martey

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Chapter 8

1:What is the main purpose and use of configuring up to three different area addresses on a single router?
A1: You configure multiple area addresses within a transition period when migrating from one area address to another.
2:What is the consequence of configuring more than one area address on a single router?
A2: The Link-State databases of the two areas are merged, consequently merging the areas into one.
3:What is the purpose of the transition keyword when used with the metric-style command?
A3: It enables the router to advertise and accept both old- and new-style TLVs.
4:How many types of hello packets are used on point-to-point interfaces on Cisco routers?
A4: Only a single hello packet
5:What is the purpose of the mesh-group blocked ...

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