Transcription

SNMP Workshop

Topics Generals SNMP Software SNMP SkyWAN – Work on redundant unit (Aruba) FAD – Work on redundant unit (Aruba) GraphsCSS // COMSOFT Satellite Services GmbH / page 2 //

Topic Generals SNMPCSS // COMSOFT Satellite Services GmbH / page 3 //

SNMPSimple Network Management Protocol (SNMP) is an "Internet-standard protocol for managingdevices on IP networks".Devices that typically support SNMP include routers, switches, servers, workstations, printers,modem racks and more.SNMP is widely used in network management systems to monitor network-attached devices forconditions that warrant administrative attention.SNMP is a component of the Internet Protocol Suite as defined by the Internet EngineeringTask Force (IETF). It consists of a set of standards for network management, including anapplication layer protocol, a database schema, and a set of data objects.SNMP exposes management data in the form of variables on the managed systems, whichdescribe the system configuration.These variables can then be queried (and sometimes set) by managing applications.CSS // COMSOFT Satellite Services GmbH / page 4 //

SNMPIn typical uses of SNMP one or more administrative computers, called managers, have the taskof monitoring or managing a group of hosts or devices on a computer network. Each managedsystem executes, at all times, a software component called an agent which reports informationvia SNMP to the manager.CSS // COMSOFT Satellite Services GmbH / page 5 //

Management information base (MIB)SNMP itself does not define which information (which variables) a managed system shouldoffer.Rather, SNMP uses an extensible design, where the available information is defined bymanagement information bases (MIBs).MIBs describe the structure of the management data of a device subsystem; they use ahierarchical namespace containing object identifiers (OID).Each OID identifies a variable that can be read or set via SNMP. MIBs use the notation definedby Structure of Management Information Version 2.0CSS // COMSOFT Satellite Services GmbH / page 6 //

HintsCOMSOFT grants in its tender response, that the management bandwidth will not exceed 7%of the overall bandwidth.Any required additional data traffic generated by SNMP requests send through the network togather network VSAT stations parameter of measures will increase management bandwidth toa higher figure than the guaranteed 7%.The exact amount of increasing cannot be named at this stage, since it is hardly related to thedepth of information every single MEVA III Member state would like to receiveWorst case scenario is that the additional management bandwidth adds again 7% of traffic,where the overall network management bandwidth will consume 14% of the overall availablebandwidth.COMSOFT explicite recommends to use further SNMP requests (COMSOFT already made allits network parameters available on the MEVA III web page) generated by individual memberstates only on local units.CSS // COMSOFT Satellite Services GmbH / page 7 //

Topic Software SNMPCSS // COMSOFT Satellite Services GmbH / page 8 //

Software SNMPThere are a lot of free SNMP tools available on the web.As a selection of the following „winows“ based tools can be used.SNMP grapher STG (http://www.chat.ru/ leonidvm/1.4.5/stg.zip) Solarwinds Real-Time Bandwidth itor.zip)SNMP MIB Browser Paessler SNMP Tester (https://www.paessler.com/tools/snmptester)CSS // COMSOFT Satellite Services GmbH / page 9 //

Software STGSTG allows monitoring of one SNMP device with different update periods starting from 0.01s soyou could see what's happening right now.CSS // COMSOFT Satellite Services GmbH / page 10 //

Software Real-Time Bandwidth Monitor (recommended)The “Real-Time Bandwidth Monitor” software automatically detects available SNMP readouts ofthe network units.CSS // COMSOFT Satellite Services GmbH / page 11 //

Software SNMP TesterThe “Paessler SNMP Tester” software is a Simple Debugging Tool for MonitoringConfigurations that use SNMP.CSS // COMSOFT Satellite Services GmbH / page 12 //

Topic SkyWAN – Work on redundant unit (Aruba)CSS // COMSOFT Satellite Services GmbH / page 13 //

SkyWAN – Using “Real-Time Bandwidth Monitor”This examples show the usage of the software at the Aruba SkyWAN nodes.First step is to readout the related IP addresses of the units read information from the printingof the SkyWAN IDUs front printed label or SDD provided network diagram.For Aruba the SkyWANs IP address are: 192.168.102.1 (2570-1) 192.168.102.65 (2570-2)Please remember to connect your local LAN to a MEVA III rack switch port. At redundant sitesport 1-8 belongs to VLAN1 (192.168.102.63 / 26) and ports 9-16 belongs to VLAN2(192.168.102.126 / 26)CSS // COMSOFT Satellite Services GmbH / page 14 //

SkyWAN – Using “Real-Time Bandwidth Monitor”After starting the software, the device has to be configured by entering the related IP address,SNMP version and community string.CSS // COMSOFT Satellite Services GmbH / page 15 //

SkyWAN – Using “Real-Time Bandwidth Monitor”In the next step the software will automatically detect available OIDs able to be graphed.CSS // COMSOFT Satellite Services GmbH / page 16 //

SkyWAN – Using “Real-Time Bandwidth Monitor”In our example Serial (2) is the main interface where all FAD traffic is received from (refer toSDD network diagram). Mark Serial (2) and click next.CSS // COMSOFT Satellite Services GmbH / page 17 //

SkyWAN – Using “Real-Time Bandwidth Monitor”Make your choices and click „Launch Monitor“.CSS // COMSOFT Satellite Services GmbH / page 18 //

SkyWAN – Using “Real-Time Bandwidth Monitor”Related graph will be presented. You can open as much graphs as you like in parallel byrepeating previous steps.CSS // COMSOFT Satellite Services GmbH / page 19 //

Topic FAD – Work on redundant unit (Aruba)CSS // COMSOFT Satellite Services GmbH / page 20 //

FAD – Using “Real-Time Bandwidth Monitor”This examples show the usage of the software at the Aruba FAD nodes.First step is to readout the related IP addresses of the units read information from the printingof the FADs front printed label or SDD provided network diagram.For Aruba the FADs IP address are: 192.168.102.2 (AUA1FAD1) 192.168.102.66 (AUA2FAD1)Please remember to connect your local LAN to a MEVA III rack switch port. At redundant sitesport 1-8 belongs to VLAN1 (192.168.102.63 / 26) and ports 9-16 belongs to VLAN2(192.168.102.126 / 26)CSS // COMSOFT Satellite Services GmbH / page 21 //

FAD – Using “Real-Time Bandwidth Monitor”Setup the software in the same way as described previously and choose graphs to bepresented.CSS // COMSOFT Satellite Services GmbH / page 22 //

FAD – Using “Real-Time Bandwidth Monitor”In our example we choose “Slot3Dual Serial SCC 301”. Referring to SDD “Port Connections”that port is related to “Atlanta AFTN”.CSS // COMSOFT Satellite Services GmbH / page 23 //

Using “Paessler SNMP Tester”Start the software.(1) Enter Device IP Address(2) Choose SNMP Version(5) Read Out OIDs tobe monitored(3) Choose(4) Run TestCSS // COMSOFT Satellite Services GmbH / page 24 //

Using “Paessler SNMP Tester”You can use the OIDs to launch STG.In this example we use the OIDfor the serial interface (data from FAD).Test 2CSS // COMSOFT Satellite Services GmbH / page 25 //

Using “Paessler SNMP Tester”Copy OID from Test 2 to STG and setup a new graph and press F9 for settings.(1) Set unit IP address(2) Set OID(3) Set 2nd OID if needed(4) Update PeriodCSS // COMSOFT Satellite Services GmbH / page 26 //

Using “Paessler SNMP Tester”This exapmle presents the input/output at SkyWAN IDU serial port connected to FAD.CSS // COMSOFT Satellite Services GmbH / page 27 //

Topic GraphsCSS // COMSOFT Satellite Services GmbH / page 28 //

Useful GraphsBad Dummy Bits Received Graphs .1.3.6.1.4.1.247.97.5.2.1.1.10.1.2 (2570-1) .1.3.6.1.4.1.247.97.5.2.1.1.10.1.102 (2570-2)CSS // COMSOFT Satellite Services GmbH / page 29 //

Makus TenbeckTel: 49 (0) 7062 / 91651 – 14Email: [email protected] youfor your attention!

CSS // COMSOFT Satellite Services GmbH / page 4 // SNMP Simple Network Management Protocol (SNMP) is an "Internet-standard protocol for managing devices on IP networks". Devices that typically support SNMP in