routing Flashcards
Routing
Static Routing and Dynamic Routing
Dynamic Routing
IGP (interior gateway protocols) IGP operates and routes within an AS and EGP (exterior gateway protocols) an EGP works
outside or between more than one AS.
Autonomous system
Is a collection of networks or subnets that are in the same administrative domain.
BGP
Border Gateway Protocol
The most popular protocol for an EGP
DV
distance- vector
RIPV1&2 (Routing Information Protocol); IGRP (Interior Gateway Routing Protocol)
LS
link-state
OSPF (Open Short Path First); IS-IS ( Intermediate System)
Hybrid
EIGRP (Cisco. Enhanced IGRP) and BGP (Border Gateway Protocol)
AD
Administrative distance, is used to rate the trustworthiness of routing information
received on one router from its neighboring router.
Connected interface
0
Static route
1
External BGP
20
Internal EIGRP
90
IGRP
100
OSPF
110
IS-IS
115
RIP
120
External EIGRP
170
Internal BGP
200
Unknown
255 (this route will never be used)
Classful routing protocols
RIPv1 and IGRP
Classless routing protocols
RIPv2, EIGRP, or OSPF
First- hop redundancy protocols
Work by giving you a way to configure more than one physical router to appear as if they were only a single logical one. HSRP and VRRP
Router Advertisement
A router advertisement is part of a new system configuration option in IPv6. This is a packet sent by routers to give the host a network ID (called a prefix in IPv6) so that the host can generate its own IPv6 address derived from its MAC address.
Neighbor Discovery Protocol
The Neighbor Discovery Protocol (NDP) is a protocol in the Internet protocol suite used
with Internet Protocol version 6 (IPv6). It operates at the link layer of the Internet model and is responsible for gathering various information required for Internet communication, including the configuration of local connections and the domain name servers and gateways
used to communicate with more distant systems.