Module 14.2_Dynamic Routing

Routing Protocols

are used to facilitate the exchange of routing information between routers.

Discovery of remote networks

Maintaining up-to-date routing information

Choosing the best path to destination networks

Ability to find a new best path if the current path is no longer available

4 purpose of dynamic routing protocols

Data structures,

Routing protocol messages,

Algorithm

3 Main components of dynamic routing protocols

Data structures

• Routing protocols typically use tables or databases for its operations.

• This information is kept in RAM.

Routing protocol messages

Routing protocols use various types of messages to discover neighboring routers, exchange routing information, and other tasks to learn and maintain accurate information about the network.

Algorithm

Routing protocols use _____ for facilitating routing information for best path determination.

Providing ease of routing table maintenance in smaller networks that are not expected to grow significantly.

Routing to and from a stub network.

Accessing a single default router.

Static routing has several primary uses (3)

Routing Information Protocol, version 2

automatically summarizes networks at major network boundaries by default.

Ultimate route,

Level 1 route,

Level 1 parent route,

Level 2 child routes

Routes are discussed in terms of (4)

ultimate route

is a routing table entry that contains either a next-hop IP address or an exit interface.

Directly connected,

dynamically learned,

link local routes

are ultimate routes (3)

directly connected interfaces,

static routes,

dynamically learned routes

Components of the IPv6 routing table that are very similar to the IPv4 routing table (3)

IPv6

• is classless by design, all routes are effectively level 1 ultimate routes.

• There is no level 1 parent of level 2 child routes.