SNMP SNMP is a protocol that allows remote monitoring and local
management of items on the network including Router, Host, Switches
which we have used in our network architecture. Comprised of agents
and managers Agents - process running on each managed node
collecting information about the devices it is running on Manager -
process running on a management workstation that requests
information about devices on the network
Slide 4
Client Pull & Server Push SNMP is a client pull model The
management system (client) pulls data from the agent (server). SNMP
is a server push model The agent (server) pushes out a trap message
to a (client) management system.
Slide 5
SNMP & The OSI Model 7 Application Layer- Management and
Agent APIs SNMP 6 Presentation Layer- ASN.1 and BER 5 Session
Layer- RPC and NET BIOS 4 Transport Layer- TCP and UDP 3 Network
Layer- IP and IPX 2 Data Link Layer -Ethernet, Token Ring, FDDI 1
Physical Layer
Slide 6
Ports & UDP SNMP uses User Datagram Protocol (UDP) as the
transport mechanism for SNMP messages Like FTP, SNMP uses two
well-known ports to operate: UDP Port 161 - SNMP Messages UDP Port
162 - SNMP Trap Messages
Slide 7
Cacti - Graphical Monitoring Application Cacti is an
open-source, web-based network monitoring and graphing tool
designed as a front-end application for the open-source,
industry-standard data logging tool RRDtool. Cacti allows a user to
poll services at predetermined intervals and graph the resulting
data. Generally used to graph time-series data of metrics such as
CPU load and network bandwidth utilization. A common usage is to
monitor network traffic by polling a network switch or router
interface via Simple Network Management Protocol (SNMP).
Slide 8
Screenshots - Configuring SNMP for Switch
Slide 9
Screenshots - Cacti Login
Slide 10
Screenshots - Cacti Home
Slide 11
Screenshots - Adding Device(Switch)
Slide 12
Screenshots - Network Traffic in Cacti(Switch)
Slide 13
Screenshots - Traffic in Wireshark(Switch) Request
Slide 14
Screenshots - Network Traffic in Wireshark(Switch)
Response
Slide 15
Screenshots - Graph I (Switch I)
Slide 16
Screenshots - Graph II (Switch I)
Slide 17
Screenshots - Graph III (Switch I)
Slide 18
Screenshots - Graph IV (Switch I)
Slide 19
Screenshots - Graph I (Switch II)
Slide 20
Screenshots - Graph II (Switch II)
Slide 21
Screenshots - Graph III (Switch II)
Slide 22
Screenshots - Graph IV (Switch II)
Slide 23
Screenshots - Graph V (Switch II)
Slide 24
Screenshots - Graph VI (Switch II)
Slide 25
Screenshots - Graph VII (Switch II)
Slide 26
Screenshots - Graph VIII (Switch II)
Slide 27
Screenshots - Configuring SNMP for Router
Slide 28
Screenshots - Adding Device(Router)
Slide 29
Screenshots - Network Traffic in Wireshark(Router) Request
Slide 30
Screenshots - Traffic in Wireshark(Router) Response
