What is a router?
• A router is a piece of network hardware.
• Responsible for forwarding packets to their destinations.
Reach Remote Networks
 A router learns about remote networks in two ways:
 Statically , manually
 Dynamically , protocols
Static and
Default
Routes
Dynamic
Routing
Static Routing:-
• manually configured
• paths that are manually set.
• No routing protocols.
Advantages : -
• Simple
• Secure.
• No extra bandwidth or CPU usage for route
updates.
.
• Disadvantages
• No back up fails
• Hard to manage in large networks.
Stub Networks and Stub Routers
Ferman I.Kareem 7
Dynamic routing
• No administrator’s help.
• Using protocols.
• RIP, OSPF
Advantages
1. Automatic Route Learning.
2. Automatic Route Updates.
3. Less Administrative.
4. Backup Paths.
Disadvantages
• More resources using.
• Complexity.
• Convergence Time:
Ferman I.Kareem 10
Basis of Comparison Static Routing Dynamic Routing
Configuration
Technique
In static routing, routing tables are manually
updated.
In dynamic routing, routing tables are
dynamically updated.
Bandwidth
It requires less bandwidth than dynamic
routing.
It requires more bandwidth than static
routing.
Paths/Routes Paths are defined by administrative.
Paths are updated according to the changes
in the network.
Application Area
Static Routing is implemented in a small
network.
Dynamic Routing is implemented in a large
network.
Routing Protocols It does not use any protocol.
It uses protocols like RIP, OSPF, etc., to
calculate the routing operation.
Security Highly secure than dynamic routing Less secure than static routing.
Failure of Link Link failure disturbs routing is in process.
Link failure does not disturb routing is in
process.
Additional
Resources
Static routing does not require any
additional resources.
Dynamic routing requires additional
resources like memory, bandwidth etc.
Ferman I.Kareem 11
• determines the best path to a destination
based on
• distance (how far the destination is)
• vector (the direction or next hop to get
there).
• Periodic updates.
• RIP
Distance Vector Routing Protocols
Ferman I.Kareem 13
 Topology map
 No periodic updates.
 updates ,when changing
 OSPF and IS-IS
Link-State Routing Protocols
Ferman I.Kareem 14
Configuring the RIP Protocol
Advertise Networks  The network network-address
router configuration mode
command:
Enables RIP on all
interfaces that belong to a
specific network
Advertises the network in
RIP routing updates sent to
other routers every 30
seconds.
THANK YOU

Static and Dynamic Routing.pptx for studying routin

  • 1.
    What is arouter? • A router is a piece of network hardware. • Responsible for forwarding packets to their destinations.
  • 2.
    Reach Remote Networks A router learns about remote networks in two ways:  Statically , manually  Dynamically , protocols Static and Default Routes Dynamic Routing
  • 3.
    Static Routing:- • manuallyconfigured • paths that are manually set. • No routing protocols.
  • 4.
    Advantages : - •Simple • Secure. • No extra bandwidth or CPU usage for route updates. .
  • 5.
    • Disadvantages • Noback up fails • Hard to manage in large networks.
  • 6.
    Stub Networks andStub Routers
  • 7.
    Ferman I.Kareem 7 Dynamicrouting • No administrator’s help. • Using protocols. • RIP, OSPF
  • 8.
    Advantages 1. Automatic RouteLearning. 2. Automatic Route Updates. 3. Less Administrative. 4. Backup Paths.
  • 9.
    Disadvantages • More resourcesusing. • Complexity. • Convergence Time:
  • 10.
    Ferman I.Kareem 10 Basisof Comparison Static Routing Dynamic Routing Configuration Technique In static routing, routing tables are manually updated. In dynamic routing, routing tables are dynamically updated. Bandwidth It requires less bandwidth than dynamic routing. It requires more bandwidth than static routing. Paths/Routes Paths are defined by administrative. Paths are updated according to the changes in the network. Application Area Static Routing is implemented in a small network. Dynamic Routing is implemented in a large network. Routing Protocols It does not use any protocol. It uses protocols like RIP, OSPF, etc., to calculate the routing operation. Security Highly secure than dynamic routing Less secure than static routing. Failure of Link Link failure disturbs routing is in process. Link failure does not disturb routing is in process. Additional Resources Static routing does not require any additional resources. Dynamic routing requires additional resources like memory, bandwidth etc.
  • 11.
    Ferman I.Kareem 11 •determines the best path to a destination based on • distance (how far the destination is) • vector (the direction or next hop to get there). • Periodic updates. • RIP Distance Vector Routing Protocols
  • 13.
    Ferman I.Kareem 13 Topology map  No periodic updates.  updates ,when changing  OSPF and IS-IS Link-State Routing Protocols
  • 14.
    Ferman I.Kareem 14 Configuringthe RIP Protocol Advertise Networks  The network network-address router configuration mode command: Enables RIP on all interfaces that belong to a specific network Advertises the network in RIP routing updates sent to other routers every 30 seconds.
  • 15.

Editor's Notes

  • #2 2.1 – Implement Static Routes 2.1.1 – Static Routing 2.1.1.1 – Reach Remote Networks
  • #6 2.1 – Implement Static Routes 2.1.1 – Static Routing 2.1.1.3 – When to Use Static Routes
  • #11 5.1 – Dynamic Routing Protocols 5.1.1 – Types of Routing Protocols 5.1.1.3 – Distance Vector Routing Protocols
  • #13 5.1 – Dynamic Routing Protocols 5.1.1 – Types of Routing Protocols 5.1.1.4 – Link-State Routing Protocols
  • #14 3.2 – RIPv2 3.2.1 – Configuring the RIP Protocol 3.2.1.2 – Advertise Networks