CCNA training in Chandigarh

                                                               PROTOCOL Protocols are the way which use to perform the communication between two devices. Protocol are responsible for end to end communication.A protocol is set of rule or instruction because it define the rule and regulation of communication.Protocol is a small piece of software.A device use number of protocol to perform the communication with other device. Protocol are divided into five categories and categories define  the function of protocol                                          PROTOCOL CATEGORIES  1:- COMMUNICATION PROTOCOL (tcp/ip , udp/ip , spx/ipx)      2:- ROUTING PROTOCOL - routing protocol are divided into two part IGP (rip , igrp , eigrp , ospf , is-is ) EGP (bgp )  3:- ROUTED PROTOCOL (ip , ipx , at )  4:- TRANSPORT PROTOCOL (tcp , udp , spx )  5:- APPLICATION PROTOCOL (http , ftp , tftp , dhcp , smtp , pop , dns , telnet , ssh ) COMMUNICATION PROTOCOL

                                                    DYNAMIC ROUTING In dynamic routing, we use a routing protocol.in dynamic routing protocol is responsible for defining the path to reach the destination.The routing table is automatically created by routing protocol.Dynamic routing is a single routing technique which uses multiple ad (admin distance) number because in dynamic routing we have multiple routing protocols and each routing protocol has unique or pre-defined ad number. Eg.           PROTOCOL                       AD Number          RIP                                      120          IGRP                                    100          EIGRP                                  90           OSPF                                   110           IS-IS                                    115                                  BGP                      IBGP                 EBGP                      200