Chapter 10 - Supplement - Sheet1 Flashcards
IGP
Interior Gateway Protocols. Used to exchange routing information with routers in the same autonomous sytem.
AS
Autonomous system. Colection of networks under a common administrative domain.
EGP
Exeterior gateway protocols. Used to communicate between multiple autonomous systems
Two types of dynamic routing
IGP, EGP
Two types of IGP
Distance Vector, Link State
AD
Administrative Distance. Used to rate the trustworthiness of routing information received on one router from its neighboring router. Integer from 0 - 255.
AD = 0
Most trusted route
AD = 255
Least trusted route. No traffic is allowed to be passed via this route.
Default AD of a connected interface
0
Default AD of a static route source
1
Default AD of EIGRP route source
90
Default AD of IGRP route source
100
Default AD of OSPF route source
110
Default AD of RIPv1 and RIPv2 route source
120
Default AD of external EIGRP route source
170
Default AD if route source is unknown
255
Distance Vector Protocols
Finds the best path to a remote network by judging distance in hops. Fewest hops = best route
Examples of vector protocols
RIP, RIPv2, Interior Gateway Routing Protocol (IGRP)