Computer Networks/Routing

This lesson introduces routing.

Objectives and Skills

Objectives and skills for the routing portion of Network+ certification include:

• Explain the basics of routing concepts and protocols
  • Loopback interface
  • Routing loops
  • Routing tables
  • Static vs dynamic routes
  • Default route
  • Distance vector routing protocols
    • RIPv2
  • Hybrid routing protocols
    • BGP
  • Link state routing protocols
    • OSPF
    • IS-IS
  • Interior vs exterior gateway routing protocols
  • Autonomous system numbers
  • Route redistribution
  • High availability
    • VRRP
    • Virtual IP
    • HSRP
  • Route aggregation
  • Routing metrics
    • Hop counts
    • MTU, bandwidth
    • Costs
    • Latency
    • Administrative distance
    • SPB

Readings

1. Wikipedia: Routing
2. Wikipedia: Distance-vector routing protocol
3. Wikipedia: Link-state routing protocol
4. Wikipedia: Routing Information Protocol
5. Wikipedia: Open Shortest Path First
6. Wikipedia: Enhanced Interior Gateway Routing Protocol
7. Wikipedia: Border Gateway Protocol
8. Wikipedia: Virtual Router Redundancy Protocol
9. Wikipedia: Hot Standby Router Protocol

Multimedia

1. YouTube: Routing Tables - CompTIA Network+ N10-006 - 1.9
2. YouTube: Route Aggregation and Redistribution - CompTIA Network+ N10-006 - 1.9
3. YouTube: Routing Metrics - CompTIA Network+ N10-006 - 1.9
4. YouTube: Static and Dynamic Routing - CompTIA Network+ N10-006 - 1.9
5. YouTube: Link State, Distance Vector, and Hybrid Routing Protocols - CompTIA Network+ N10-006 - 1.9
6. YouTube: IGP and EGP - CompTIA Network+ N10-006 - 1.9
7. YouTube: High Availability - CompTIA Network+ N10-006 - 1.9

Activities

1. Use the Tracert command to test network routing.
2. Use the route command to display and modify the local routing table:
   • Use the route command to display the local routing table.
   • Use the route command to modify the local routing table.
3. Use a router emulator to set up and configure a basic router. (Note: The emulator will not save configuration changes.)
   • Under Setup, configure advanced routing.
     • Enable RIP.
     • Receive and transmit using RIPv2.
   • Add a static route to 192.168.2.0/24 using:
     • Destination IP: 192.168.2.0
     • Subnet Mask: 255.255.255.0
     • Default Gateway 192.168.1.2
     • Hop Count: 1
     • Interface: LAN
4. Ask your school or business organization's IT personnel to describe the routing environment. What routers are in use? Which routing protocols are in use? Are any static routes in use? How many locations and how many subnets are managed by the routers?