Differentiate between Arp and BGP

BGP stands for Border gateway protocol. It is used to exchange the routing information between the networks. It makes the internet work. It always selects the local path preference. Because of the below reasons it is choosing the path than the best path.

- Firstly RIP (Routing Information Protocol) selects the path with lowest hop count.

- OSPF (Open Shortest Path First) selects the path with the lowest cost. This is more important.

- The best path in internet depends on how we are forwarding the traffic and to which autonomous system instead of the shortest path.

- Higher local preference path is preferred.

-Shortest AS Path is preferred. It is much more important.

- We should prefer the path with lowest origin type.

So BGP establishes the connection with the shortest path. If the connection is broken for some reasons, it can automatically arrange the routing tables to reach the Autonomous system.

ARP stands for Address Resolution Protocol. To reach a specific device we use this protocol. It enables communication between two networks. It is used to connect a layer 3 (Network layer) address (such as an IP address) with a layer 2 (Data Link layer) address (MAC address). ARP finds the hardware address also known as MEDIA ACCESS CONTROL (MAC) address, of a host from its known IP Address. ARP provides a necessary bridge between physical and logical address on a TCP/IP protocol.

Implementation of ARP Protocol Requirements

• IP address Overview

• Address resolution on a single LAN

• Address resolution when interconnected by a router

• ARP and Proxy ARP

• ARP Cache entry

Importance of ARP

ARP converts IP addresses to ethernet addresses. ARP is vital as the original ethernet hardware communicates using ethernet addresses, not IP addresses.

Working of ARP

This is based off of a series of UseNet posts (one in particular) on the alt.certification.network-plus news group.

Differences

The major differences between ARP and BGP are as follows −