Jeremy's It Lab CCNA Dynamic Routing Day 24

[...] are used to share routes between different autonomous systems (AS).

EGPs

[...] are used to share routes within a single autonomous system (AS).

IGPs

[...] is used to compare routes learned via different routing protocols.

AD (Administrative Distance)

[...] is used to compare routes learned via the same routing protocol.

Metric

[...] routing protocols send the following information to their connected neighbors:

-their known destination networks

-their metric to reach their known destination networks

Distance Vector

A route to a /32 destination is known as a [...] route.

host

A route to a network/subnet is known as a [...] route.

network

Configure a static route, and specify the AD:

R1(config)# [...]

ip route destination mask next-hop AD

(ie. ip route 10.0.0.0 255.0.0.0 10.0.13.2 115)

Does a router prefer a lower or higher AD when selecting routes?

lower

Does a router prefer a lower or higher metric when selecting routes?

lower

Dynamic routing: What does EGP stand for?

Exterior Gateway Protocol

Dynamic routing: What does IGP stand for?

Interior Gateway Protocol

EGPs are used to share routes between different [...]

autonomous systems (AS)

If R1 learns multiple routes to the same destination from the same routing protocol, what is used to determine which route will be added to R1's routing table?

Metric

If R1 learns multiple routes to the same destination from two different routing protocols, what is used to determine which route will be added to R1's routing table?

AD (Administrative Distance)

IGPs are used to share routes within a single [...]

autonomous system (AS)

In which dynamic routing protocol do all links have a metric cost of 10 by default?

IS-IS

R1 learns two routes to the same destination, via the same routing protocol, and both routes have the same metric. Which will be added to the routing table?

Both (traffic will be load-balanced)

Route protocol/type: Directly connected

AD: [...]

0

Route protocol/type: eBGP

AD: [...]

20

Route protocol/type: EIGRP (external)

AD: [...]

170

Route protocol/type: EIGRP

AD: [...]

90

Route protocol/type: iBGP

AD: [...]

200

Route protocol/type: IGRP

AD: [...]

100

Route protocol/type: IS-IS

AD: [...]

115

Route protocol/type: OSPF

AD: [...]

110

Route protocol/type: RIP

AD: [...]

120

Route protocol/type: Static

AD: [...]

1

Route protocol/type: Unusable route

AD: [...]

255

Routers can use [...] to advertise information about the routes they know to other routers.

dynamic routing protocols

What are the two Distance Vector routing protocols?

RIP

EIGRP

What are the two Link State routing protocols?

OSPF

IS-IS

What are the two types of IGP?

Distance Vector

Link State

What does BGP stand for?

Border Gateway Protocol

What does ECMP stand for?

Equal Cost Multi-Path (load-balancing)

What does EIGRP stand for?

Enhanced Interior Gateway Routing Protocol

What does IS-IS stand for?

Intermediate System to Intermediate System

What does OSPF stand for?

Open Shortest Path First

What does RIP stand for?

Routing Information Protocol

What dynamic routing protocol calculates metric using bandwidth and delay (and others, if configured)?

EIGRP

What is the AD value of this route?

O 192.168.4.0/24 [110/3] via 10.0.12.2

110

What is the metric value of this route?

O 192.168.4.0/24 [110/3] via 10.0.12.2

3

What is the name for a static route which has a higher AD than a route learned via a dynamic routing protocol?

Floating static route

What is the single Path Vector routing protocol?

BGP

What is the single type of EGP?

Path Vector

What kind of dynamic routing protocol operates using 'routing by rumor'?

Distance Vector

What metric does RIP use?

hop count

When using a [...] routing protocol, every router creates a 'connectivity map' of the network.

link state

Which dynamic routing protocol uses a cost calculated based on interface bandwidth as its metric?

OSPF

Which kind of dynamic routing protocol tends to react faster to changes in the network, distance vector or link state?

link state

Which kind of routing protocol uses more CPU resources on the router, distance vector or link state?

link state