When routing tables adapt to network changes the routing system is called adaptive.
When a system sends an IP packet to another system in a network, it is direct routing. When a system sends an IP packet to another system via a third system or more systems in a network, it is indirect outing.
Dynamic routing is a networking technique that provides optimal data routing. Unlike static routing, dynamic routing enables routers to select paths according to real-time logical network layout changes. In dynamic routing, the routing protocol operating on the router is responsible for the creation, maintenance and updating of the dynamic routing table. In static routing, all these jobs are manually done by the system administrator. Dynamic routing uses multiple algorithms and protocols. The most popular are Routing Information Protocol (RIP) and Open Shortest Path First (OSPF).
Autonomous network means its a private network working independently on the field, ARS will automatically reconfigure the network settings with the previous successful transmission from the routing table .
In general it doesn't matter what Network Operating System you choose, since they are integrated in the overall Operating System, and most use TCP/IP as the transport/routing model.
routing loopsinconsistent traffic forwardingno traffic forwarding until system convergesinconsistent routing table entriesrouting table updates sent to wrong destinations
Homogeneous Network
Routing is of two types static and dynamic . In dynamic routing there are two protocols interior and exterior. Interior routing is inside an autonomous system and Exterior routing is between an autonomous system.RIP is short for routing information protocol. RIP is an interior protocol that is used inside an autonomous system.
* Ability to handle growing amount of work * Capability of a system to increase total throughput under an increased load when resources are added * A scalable system is that whose performance improves after adding hardware, proportionally to the capacity added * A routing protocol is considered scalable with respect to network size, if the size of the necessary routing table on each node grows as O(log N), where N is the number of nodes in the network.
when one symstem of one computer is connected to the system of other network it is called intra network
It is used for routing the packets hierarchically and it is designed for the following Reasons: 1)Routers need more memory space to store the routing tables. 2)More CPU time needed to scan table. 3)More Bandwidth required to send the scanned report. So this routing algorithm divides the router into number of routers called regions and maintain tables for them to decrease the size. this is done in TELEPHONE SYSTEM.
Classful routing protocols do not carry subnet mask information on their routing updates. This makes them unsuitable for hierarchical addressing that require Variable Length Subnet Mask (VLSM) and discontiguous network. Classless routing protocols do carry subnet mask information on their routing updates.RIP v1 and IGRP are classful routing protocols. RIP v2, EIGRP, OSPF, and BGP are classless routing protocol.When running a classful routing protocol on a network, make sure you use the same subnet mask everywhere. Otherwise, routing black holes can occur.Classless routing protocols extend the standard Class A, B, or C IP addressing scheme by using a subnet mask or mask length to indicate how routers must interpret an IP network ID. Classless routing protocols include the subnet mask along with the IP address when advertising routing information. Subnet masks representing the network ID are not restricted to those defined by the address classes, but can contain a variable number of high-order bits. Such subnet mask flexibility enables you to group several networks as a single entry in a routing table, significantly reducing routing overhead. Classless routing protocols includes RIP v2 and OSPF, Border Gateway Protocol version 4 (BGP4) and Intermediate System to Intermediate System (IS-IS).
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