Network Management Systems

1. December 3, 4 & 5th Network Management Systems Ravi Ananth Giri K.

2. Linux Bangalore/2002 Topics Introduction Concepts Linux & NMS Opensource NMS Apps Rolling Your Own NMS Summary Q & A Network Management Systems Ravi Ananth Giri

3. Linux Bangalore/2002 Introduction What is a Network Management System A combination of various tools, application & devices that assist human network managers manage and maintain the network. What can it do ? Autopolling of network connected devices, generating real-time graphs and metrics of network topology changes & traffic ........ So who needs one ? Anyone who has a network !! Network Management Systems Ravi Ananth Giri

4. Linux Bangalore/2002 Concepts NMS Architecture Management Application Database Pooling Network Management Protocol Network Machine Switch Printer Router NMS Agent NMS Agent NMS Agent NMS Agent Managed Devices Network Management Systems Ravi Ananth Giri

5. Linux Bangalore/2002 Concepts OSI Network Management Model Performance Management Configuration Management Accounting Management Fault Management Security Management Network Management Systems Ravi Ananth Giri

6. Linux Bangalore/2002 Concepts - SNMP Simple Network Management Protocol ARCHITECTURE SNMP Agent SNMP Manager MIB Versions Network Management Systems Ravi Ananth Giri

7. Linux Bangalore/2002 Linux & NMS Strong Networking Core Full SNMP support (net-snmp) Profusion of remote management tools Scripting/Automation Open Standards Traditional UNIX strengths - Reliability, Scalability, etc Network Management Systems Ravi Ananth Giri

8. Linux Bangalore/2002 NMS Apps Open NMS - Feature Rich, Scalable - Quite Heavy - Might not suit all requirements [ snapshot comes here ] Network Management Systems Ravi Ananth Giri

9. Linux Bangalore/2002 NMS Apps Nagios - Only Monitoring - Very Mature - Easy to setup/maintain Commercial Applications IBM Tivoli, HP OpenView, Unicenter TNG, etc Network Management Systems Ravi Ananth Giri

10. Linux Bangalore/2002 Rolling Your Own NMS What tools do you require ? What you need on the Nodes - SNMP Agent - snmpd (net-snmp) shell/perl scripting System utilities - df, ps, iostat, vmstat, etc Hardware monitoring utilities - lm_sensors /proc filesystem SSH Network Management Systems Ravi Ananth Giri

11. Linux Bangalore/2002 Rolling Your Own NMS What tools do you require ? What you need on the Master(s) - SNMP Tools - snmpget/snmpwalk, etc shell/perl scripting SSH Sendmail/some MTA Backend - PostgreSQL, MySQL, Berkeley DB MRTG/RRDTool/GNUPlot Webserver/Scripting Language Rsync/unison Network Management Systems Ravi Ananth Giri

12. Linux Bangalore/2002 Rolling Your Own NMS Tying it all together - Planning - Draw a network diagram Identify your critical Systems & Services SNMP support on hardware/platforms Mail Architecture, Link Redundancy issues, etc. Identify the people you want to disturb ! Execution - Implement on a single system first Reporting/Statistics Plan for failure of the m/c hosting the system too Network Management Systems Ravi Ananth Giri

13. Linux Bangalore/2002 Q & A Q & A Network Management Systems Ravi Ananth Giri