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CompTia Networking Concepts P1
Routing Concepts and Routing Protocol
35
Computer Networking
Professional
01/08/2015

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Term
routing
Definition
the process of directing packets between networks or subnets
Term
routing decisions
Definition
when each router uses entries in a routing table, as well as various metrics
Term
dynamic routing
Definition
route discovery operations to build and update routing tables themselves
Term
static routing
Definition
administrators manually add routing entries to configure files, which routers load when they start up
Term
dynamic routing is useful, especially in
Definition
larger network environments
Term
advantage of dynamic routing
Definition
if a network suffers from a router or link failure routers can automatically detect the problem and advertise that the affected route or routes are no longer valid
Term
Convergence
Definition
is the state of router on a internetwork that all have the same, consistent topology and route information
Term
convergence time
Definition
time for a set of routers to recover to a consistent view of the internetworks after the topology change
Term
distance-vector routing
Definition
each router passes a copy of its routing table to its neighbors, and maintains a table minimum distances to every node
Term
routing information protocol (RIP)
Definition
selects the one with the lowest metric
Term
alternatives to the distance-vector routing
Definition
link-state routing and path-vector routing
Term
path-vector routing
Definition
keeps track of the routes from itself to each data destination
Term
instead of recording a route to each individual node, path vector routing can treat an entire autonomous system, as ?
Definition
a single node
Term
Border or exterior routers
Definition
pass routing information to the next AS in a chain.
Term
link-state algorithms
Definition
broadcast small updates, and converge quickly
Term
example of the link-state protocol is
Definition
Open Shortest Path First (OPSF) protocol
Term
both distance-vector and link-state routing use
Definition
intra-domain protocol
Term
routing Information protocol (RIP)
Definition
a distance-vector routing protocol that's easy to configure, works well in simple autonomous systems, and is best deployed in small business
Term
RIPv2
Definition
enhances RIP by supporting the following features:
—Next Hop Addressing:
—Authentication:
—Subnet mask:
—Multicast addressing:
Term
border gateway protocol (BGP)
Definition
is a path-vector routing protocol used to established routing between internet service provides (ISPs).
Term
Interior gateway routing protocol (IGRP)
Definition
distance-vector protocol routing protocol developed by Cisco to improve RIP and RIPv2
Term
Enhanced Interior Gateway routing protocol (EIRGP)
Definition
considered a hybrid protocol. it includes features that support VSLM, and both classful and classless subnet mask
Term
Open Shortest Path First (OSPF)
Definition
this router uses the information in its database to build the shortest possible path to each destination on a network
Term
Intermediate system to intermediate system (IS-IS)
Definition
a link-state protocol, support more router than OSPF and doesn't require that a specific type of network address be used
Term
routing loop
Definition
occurs if two routers identify one another as the next point in a path to a particular destination
Term
collision domain
Definition
is a content-based network on which a group of nodes are allowed to compete with each other for media access
Term
broadcast domain
Definition
logical area in a computer network, where any node connected to the computer network can directly transmit to any other node in the domain without having to go through a central routing device
Term
routing protocols
Definition
specify how routers communicate with one another and how they share information on network topology and available routes
Term
IGP (interior gateway protocol)
Definition
routing protocols that govern the exchanged of routing information between routers within an autonomous system
Term
autonomous routers
Definition
is a self-contain network of routers and devices
Term
EGP (exterior gateway protocol)
Definition
routing protocols that handle the exchanged of routing information between autonomous system.
Term
autonomous system
Definition
collection of networks under one administrative control that has a define routing policy
Term
two main categories of IGPs
Definition
distance-vector protocols, and link-state protocols
Term
examples of distance - vector protocols
Definition
RIP,and IGRP
Term
connects all of the autonomous systems on the internet
Definition
border gateway protocol (BGP)
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