15 Questions
What does a Link-state routing protocol recreate?
Exact topology of an entire internetwork
Which type of routing protocol focuses on routing metric components?
Distance vector routing protocol
What is a key feature of a Distance vector routing protocol?
Distance vector network discovery
In routing, what is the main focus of Link-state concepts?
Topology changes
What does a Distance vector concept mainly emphasize?
Network layer path determination
Which type of protocol concerns itself with IP routing configuration task steps?
Distance vector routing protocol
What is the primary focus of Link-state concerns in routing protocols?
Topology changes
What aspect of the internetwork does Distance vector network discovery aim to understand?
Topology changes
What is the main objective of Path determination in routing?
Network layer path determination
Which element do Link-state topology changes primarily affect in a network?
Topology
Explain the main difference between link-state and distance vector routing protocols.
Link-state routing protocol recreates the exact topology of an entire internetwork, whereas distance vector routing protocol focuses on network discovery and routing metric components.
What does the term 'Distance vector network discovery' refer to in routing protocols?
Distance vector network discovery aims to understand the network topology and discover neighboring routers through exchanging routing information.
How do link-state topology changes impact network operations?
Link-state topology changes can trigger updates to the routing tables of all routers in the network, affecting network convergence and stability.
What are the primary components of routing metrics in routing protocols?
The primary components of routing metrics include factors such as bandwidth, delay, reliability, and cost.
How does IP routing configuration play a role in routing protocols?
IP routing configuration involves specifying which networks are reachable through a particular router using commands like 'network 172.16.0.0'.
Study Notes
Routing Protocols and Concepts
Introduction to Routing
- Routing is the process of finding a path for forwarding packets between networks.
- Routing protocols are used to build and maintain routing tables.
- A routed protocol provides enough information in its network layer address to allow a packet to be forwarded from one host to another based on the addressing scheme.
Configuring Static Routes
- A static route is a route that is manually configured by a network administrator.
- Static routes are used for backup purposes when the dynamically learned route has failed.
- Administrative Distance (AD) is a value that determines the priority of a route.
- A route with a lower AD will be installed before a similar route with a higher AD.
- Static routes can be configured using an outgoing interface or a next-hop address.
Default Route Forwarding
- Default routes are used to route packets with destinations that do not match any of the other routes in the routing table.
- Default routes can be configured using an outgoing interface or a next-hop address.
Verifying Static Route Configuration
- Use the "show ip route" and "show running-config" commands to verify static route configuration.
- Both commands must be used because some paths with lower AD may not be shown in the routing table, but their configurations are shown in running-config.
Dynamic Routing Overview
- Dynamic routing protocols are used to build and maintain routing tables.
- Autonomous systems (AS) are collections of networks under a common administration that share a common routing strategy.
- AS numbers are assigned by the American Registry of Internet Numbers (ARIN), a service provider, or an administrator.
Classes of Routing Protocols
- Distance vector protocols determine the direction, or vector, and distance to any link in an internetwork.
- Examples of distance vector protocols include RIP, IGRP, EIGRP, and BGP.
- Link-state protocols recreate the exact topology of an entire internetwork.
- Examples of link-state protocols include OSPF.
Purpose of Routing Protocols
- The purpose of a routing protocol is to ensure that all routers in an internetwork operate with the same knowledge.
- When all routers in an internetwork operate with the same knowledge, the internetwork is said to have converged.
- Fast convergence is desirable because it reduces the period of time in which routers would continue to make incorrect routing decisions.
Test your knowledge on routing protocols such as Cisco IGRP, RIP, EIGRP, OSPF, and BGP. Understand the purpose of a routing protocol in autonomous systems and how networks converge when there are topology changes.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
