A Network management protocol is nothing but the protocols which
are responsible for tracking the in and out flow of datas and
traffic from the network link. ie. between the receiver side and
the sender side. There are many protocols are available today. Some
of the mains are given below.
- SIMPLE NETWORK MANAGEMENT PROTOCOL
- CISCO DISCOVERY PROTOCOL
- INTERNET CONTROLLED MESSAGE POINT
- Simple network management protocol :snmp is most useful
protocol for gathering informations(data) from device like server,
printer, router etc. for analysis of the use of CPU, bandwidth,
network latency etc. to get a conclusion about the working of the
network device. The important component of snmp is the
MIB(management information base). which stores all the objects by a
unique value those are handled by the snmp and for identifying the
current status of the network device. SNMP analysis and stores each
and every datas that have to be transferred to the network
management applications. And by that those softwares and display
the dats to the users.
- the cisco discovery protocol is a DLLN(data link leyer
monitoring) system and used by cisco devices for sharing datas
between the connected cisco network of devices(routers, switches,
servers, etc.). And by this all the devices will send about their
attributes to the other device within the network using a multicast
adress. And these signals tells about how long will the collected
information record before it has to be deleted. And the signal
received by the receiver is cached and made available to SNMP which
transmits it to the network management software.
- Internet controlled message point is a protocol specially
designed for error reporting. That means network devicea such as
routers should send some error messages in such a condition like
the receiver or the sender can't get connected. So here this type
of protocol system doesn't included in data transfer between the
network devices. And by this error reporting system these protocol
can support the network protocol. The signals from icmp are
considered as the datagrams which consists of an IP header which
holds the signal being transmitted and a another ip header about
the error response. a example of error reported by icmp is
unreachable destination message (unavailability of the
destination).