Network Fundamentals-Static routing + dynamic routing

Source: Internet
Author: User

Description: After the use of IP to identify each network node, if the two nodes separated by multiple network nodes to communicate, need to "man-in-the-middle" strings, the step by step notice a node data, to go to the end of the node step-by-step how to go.


Static routing: Manually configure static routing information that can be forwarded using a leased line interface or a next-hop IP address based on the routing information when forwarding packets with matching destination addresses.


Advantages: Simple configuration, low system resource usage

Disadvantage: In large-scale network configuration cumbersome, and lack of flexibility, network topology changes, routing information needs to be manually adjusted.


Dynamic routing: Use algorithms and protocols to share and dynamically learn routing information

Advantages: real-time, flexibility, accuracy

Cons: High resource consumption and maintenance costs


RIP and igrp--have class routes: Routing information is released and transmitted without a subnet mask

RIPV2,OSPF,EIGRP,IS-IS,BGP----Class-free routing: Supports VLSM and CIDR: Routing information is published and transmitted with a subnet mask indication.


Ospf,isis---Using Dijkstra algorithm, link State protocol

RIP,RIPV2,IGRP-----Use the Bellman-ford algorithm. Distance Vector Protocol

Eigrp--cisco dedicated diffusion update algorithm, like IGRP for distance vector routing, but EIGRP supports no-class routing and fast Convergence


Network Fundamentals-Static routing + dynamic routing

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