Internet Protocol
About Internet Protocol
The
Internet Protocol (IP) is a protocol, or set of rules, for routing and
addressing packets of data so that they can travel across networks and
arrive at the correct destination. Data traversing the Internet is
divided into smaller pieces, called packets. IP information is attached
to each packet, and this information helps routers to send packets to
the right place. Every device or domain that connects to the Internet is
assigned an IP address, and as packets are directed to the IP address
attached to them, data arrives where it is needed.
Why is Internet Protocol important?
IP
is the core of the TCP/IP protocol suite. IP provides the fundamental
mechanism using which data is delivered between devices that may or may
not be in the same network.
• Addressing - While sending
datagrams, an addressing mechanism is needed to send the datagrams
accurately. In order to achieve this, IP uses a technique for host
addressing. The addressing of devices (to which the datagrams are
delivered) needs to be unique as this system needs to work across
networks.
• Routing - When a datagram is sent from one network to
another, which is distant and not directly connected, the delivery is
indirect. IP supports this functionality by routing the datagram through
intermediate devices (routers). It uses Internet Control Message
Protocol (ICMP) and routing protocols like Routing Information Protocol
(RIP) and Border Gateway Protocol (BGP) to achieve this.
• Data
Encapsulation - IP provides security to networks by encapsulating the
data into an IP datagram. This makes sure it is received and interpreted
by the intended recipient.
• Formatting/Packaging - IP uses specific formatting and packaging prior to transmission. IP accepts data
from the transport layer protocols above it in the OSI layer--UDP and
TCP--and passes them to the data layers. This format and package are only
decipherable by the recipient.
• Fragmentation - Since the frame
size of each physical and data link network using IP may be different,
IP fragments datagrams into pieces, so that they can each be carried on
the local network. This helps with network reliability.
•
Reassembly - IP reassembles the datagrams received into the full IP
datagram (as they may be fragmented) for the receiving device and passes
it on to the higher layers for interpretation.
Who should take the Internet Protocol Exam?
• IT or Computer networking professionals
• Anyone who wants to assess their networking skills
• IT or networking managers and senior executives
• Recruitment consultants
• Professionals working in outsourced companies responsible for network management
• Any professional with skills and knowledge of computer networking
Internet Protocol Certification Course Outline
1. Introduction to Computer Networks
2. TCP/IP Protocol Stack
3. Application Layer Services
4. Transport Layer
5. IP Addressing
6. IP Routing
7. Intra Domain Routing Protocols
8. Inter Domain Routing Protocols (BGP)
9. IP Services