Routing Protocols - List of Routing protocols
Post by Jawad Ahmad Riaz
Introduction of Routing Protocols
The process of routing governs the path and passage of data traffic in the form of packets and frames. The process of routing is aim to transfer the logical packets from their source to their eventual destination. This process is however monitored by routing protocols. The routing protocols how routers can communicate among themselves. The routing information is circulated that enables the routers to communicate within the computer network.
Border Gateway Protocol (BGP)
The network traffic is forwarded along the desired paths during the process of routing. However this process of routing is governed by crucial routing protocols. Border gateway protocol is the significant routing protocol. Border Gateway Protocol or BGP is capable of maintaining and keeping the track of IP networks which provides network access to autonomous systems (the collection of IPs which illustrates the routing procedure to the internet). Also this protocol substituted the Exterior Gateway Protocol (EGP), the use of this protocol has diminished completely now.
Cisco Discovery Protocol (CDP)
This data link layer network protocol, developed and used by Cisco International. It is most compatible to be used with Cisco network devices; it can be used to share information with the other directly attached Cisco devices. It can serve another purpose of on demand routing. On demand routing enables the CDP to identify the IP addresses and the model and type of the Cisco device connected to the network. This use of CDP in enhanced on demand routing removes the use of other vibrant protocols in the network.
Connectionless Network Service (CNS)
It is network services at the second third layer of the OSI model that is network layer. It is referred to as CNS because it does not require the establishment of circuit and hence the messages are transferred to the destinations independent of each other.
Hot Standby Router Protocol (HSRP)
This redundancy protocol established by Cisco is used as a fault tolerant gateway. The default gateway failover is covered by HSRP by using a simple technique. A multicasting data packet is sent by one HSRP to the other HSRP enabled router. The router with the pre defined IP address and gateway will respond to it quickly. This router is termed as a primary router if it fails to receive the ARP request then the next router receiving the ARP request with the same MAC address is thus successful in accomplishing the default gateway failover.
IGRP/EIGRP (Enhanced Interior Gateway Routing Protocol
EIGPR is a Cisco routing protocol based on its earlier version IGPR. This is termed as a distance vector protocol because it is used in a packet switch networks for communicating. The basic purport of this network protocol is to stabilize the working of the router. Hence it can guide the router in utilizing the bandwidth and power. Moreover the routers associated with using EIGRP can reallocate the route information to IGRP neighbors.
Internet Protocol (IP)
The internet protocol performs the task of delivering eminent data packets from the source to the destination using IP address. It is used to transfer data packets in packet switched network by utilizing internet protocol suits like TCP/IP. Intermediate System-to-Intermediate System (IS-IS)
IS–IS is a network protocol which determines the best and most suitable route for the data packets to be transferred via packet switched network by the network devices such as routers.
Multiprotocol Label Switching (MPLS)
A highly scaleable protocol skeptic mechanism used in high performing telecommunication system which assigns labels to the data packets is known as MPLS. It helps to transfer data between distant nodes by creating virtual links.
Network Address Translation (NAT)
Network address translation is a mechanism which modifies different network addresses into one IP header and it travels across a routing device, this serves the purpose of remapping the discrete addresses from one address legroom to another.
Open Shortest Path First (OSPF)
It is an interior gateway protocol that delivers IP packets to the autonomous systems. It also assembles link state information to form a topology map. This topology map helps the routing tables to make decisions merely based on IP addresses present in IP datagrams.
Quality of Service (QoS)
Quality of service is the term most commonly used in network technologies to refer to the ability to provide recital and performance to data flow .it is a teletraffic engineering terminology. It is specialized in guaranteeing and improving bit rate and multi media streaming capabilities.
Routing Information Protocol (RIP)
This efficient protocol sends the update routing messages to the routers in order to update their routes. Network routing table makes the desirable changes to it when it receives a message to alter its entry level network topologies.
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