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network emulation, Test you apps under all network conditions

 

Network Emulation

 

Test your app under all network conditions—3G/4G, satellite, WAN, cloud—in your lab.

network protocol testing,

 

Protocol Testing

 

Are the network protocols implemented properly and securely, conforming to the specs, in your app or device?

 

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AUTOMATED NETWORK EMULATION TESTING

Test your app or device under all network conditions – from the routine to the extreme. Automate a wide variety of network conditions from 3G/4G to Cloud to WAN to Satellite to Internet. Uncover performance and operational issues prior to deployment.

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ARE YOU ALLOCATING YOUR TEST RESOURCES CORRECTLY?

Finding and fixing software defects constitutes the largest expense for the software industry. Learn why line speed testing isn’t enough and the importance of functional testing!

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UNDERSTANDING HOW APPLICATIONS PERFORM ON THE NETWORK—EVEN UNDER ADVERSE NETWORK CONDITIONS

Trial deployments are expensive and yield limited data. Learn how to properly characterize your application or device performance prior to deployment.

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"Apple uses Maxwell to emulate all varieties of customer networks and access points — from limited network bandwidth to extreme latency to packet drops.

By testing our products with Maxwell prior to deployment, we ensure that customers have a solid experience when they get new Apple software or hardware in their hands."

— Dmitry Halavin, Apple Inc.

Question: (by Sandiyago)  Hi, I need to send SNMP get commands in one of our automated test scripts. Can anyone quickly tell me how can I do that?

We have been using Net-SNMP command line utilities but would like to use SilverCreek's Tcl command since our test scripts are all written in Tcl. It is ""painful"" to call SNMP shell commands in our Tcl scripts.

Thanks in advance!"

Answer One: (by PumpkinJason)  The following simple commands show you how this can be done:

set ctx [snmptcl::context::create -address 192.168.1.1 \
-version SNMPv1 -rcomm public ]
snmptcl::snmpget sysDescr.0 value -context $ctx
puts $value

Hope this helps!

Answer Two:  (by Syed)

1)  Actually, what the below step will do?

set ctx [snmptcl::context::create -address 192.168.1.1 \
-version SNMPv1 -rcomm public ]

2) My requirement is to get the below index value and need to save in the variable But when i did through SC GUI , it gave the below snippet.

snmptcl::snmpget -vbinds mplsTunnelIndexNextIndex.1 \
-rvbinds res -restatus estatus -expectstatus noError \
-expectvalue 2 -reindex eindex -octetstringformat 1 -comments comm\
-context $snmptcl(agent)

but when i try to edit the above script(shown below) and re-run it failed. Also help me to execute in CONSOLE too...

#get mplsTunnelIndexNextIndex.1
set mplsTunnelIndex [snmptcl::snmpget -vbinds mplsTunnelIndexNextIndex.1 \
-rvbinds res -restatus estatus -expectstatus noError \
-reindex eindex -octetstringformat 1 -comments comm\
-context $snmptcl(agent)]
puts $mplsTunnelIndex

if { $comm != """" } { 
append results "\nCOMMENTS: GET on mplsTunnelIndexNextIndex.1; 
Expected value: $mplsTunnelIndex \n$comm"
set type "failed"
} else { 
append results "\n \nGET on mplsTunnelIndexNextIndex.1; Expected value: 
$mplsTunnelIndex \n "
set type "passed"
}

::snmptools::scriptcmdtool::writeMessage $type $results
set results""

Answer Three:  (by Sandiyago)  

"set ctx [snmptcl::context::create -address 192.168.1.1 \
-version SNMPv1 -rcomm public ]


This creates an agent context "handle". The context handle "encapsulate" agent IP address, community string etc.

Then later you can use the handle like

snmptcl::snmpget sysDescr.0 value -context $ctx

Answer Four:  (by Sandiyago)  When you generate a command using SC GUI, the generated command always uses the default agent context "handle", i.e., the currently connected agent: $snmptcl(agent)

 

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