Plural Sight - Dynamic Routing Flashcards
What does metric stand for and give me some examples?
A value that represents the cost of a path to a network prefix aka destination.
- Hop count
- Bandwidths
What are the two routing protocol categories?
Exterior gateway protocol
Interior gateway protocol
What is an example of an exterior gateway protocol and what are some of its features?
Border gateway protocol :
- Considered a path vector protocol:
- You can setup specific paths for your network traffic
- You can get very detailed
- Implement routing policies that were set up with your ISP so you won’t have un wanted traffic on your line.
What is IGP stand for and how is it broken down?
Interior gateway protocol
2 categoríes:
- distance vector
- link state
What does distance vector mean?
Distance: the receiving router know know how far a network is from it
Vector: which path to take
What is Link state?
Exchanges information when a link goes up with entire network
Uses shortest path first algorithm
What protocols fall under distance vector?
RIPv1
RIPv2
IGRP - interior gateway protocol
EIGRP - Ehanced interior gateway protocol
What are examples of Link state protocols?
OSPF
IS-Is -intermediate systems to intermediate systems
What are the administrative distances for the follow protocols?
Directly connected
Static route
EIGRP
OSPF
IS-IS
RIP
Directly connected = 0
Static route= 1
EIGRP = 90
OSPF = 110
IS-IS = 115
RIP = 120
What is administrative distance used for?
Allows the router to choose which route it will use to get to the destination and that route then gets added to the routing table.
What is Metric used for?
It is used to determine which path to use when you have more than one way to get to the destination
Examples of metric?
Directly connected = ?
Static route = ?
EGIRP =?
OSPF =
IS-IS =?
RIP =?
Directly connected = none
Static route = none
EGIRP = bandwidth and delay of line that a engineer can modify
OSPF = bandwidth
IS-IS = varies custom metric
RIP = hop count
What version of Rip is on by default?
How do you change the version?
Version 1
To enable router rip v2
Config t
Router rip
Rip version 2
What command must you disable when running ripv2?
Auto summary
Which is faster at converging (letting routers know that a link went down)
Rip or OSPF?
Hands down OSPF?
