Application timeouts w/ subnet devices using 2950 switching

I am having problems with process critical PC workstations that access other workstations and servers.
This consists of a standalone subnet network (static IP's) using a 2950 switch that is also part of a LAN domain.
It appears when there is a LAN issue my subnet workstations experiences problems trying to access it's dedicated servers that are wired all within the subnet 2950 switch.
Could this be that the 2950 switch is looking for the DCHP or domain controller, slowing down my standalone devices?

No, it's not likely.
The only thing affected by DHCP or domain info would be for managemnt (like being able to telnet into the switch).
Switches see the frame, look at the MACs, and either forward or flood the frame. That's all they do (acting as yer basic plain ol' switch).
Other features, such as broadcast/storm control, bad media (cabling), excessive broadcasts (broadcasts are also propagated out all ports and consume considerable bandwidth everywhere), and other things, like QOS settings, buffer parameters, spanning tree can also have a serious negative impact on your throughput, including many disappearing frames.
SO ... let's start by taking a look at a Show Version, and (at least) a Show Run (sanitized, if necessary).
It would also help if you could describe the nature of the traffic that is being dropped / lost / filtered (i,e., database, large graphics files, multicast streaming, file transfers, etc.
What troubleshooting have you tried so far?
Did it ever work, worked ... but not very well, worked well until you updated the IOS ....
Have you checked your LAN for virus / worm / trojan traffic (getting back to huge broadcasts)?
Are you getting any media errors? (Show interface)
Do you run many-to-one, many-to-many, any trunks? any EtherChannel?
Are you getting any "Duplex Mismatch" errors?
Have you tried another switch (for diagnostics to rule out the workstations & media)?
This ought to be enough to get started. get it collected and post it, then we can take another shot at it.
Good Luck
Scott

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Before I start, I would like to share this link I used to access windows RT libraries from Desktop applications (only the ones stated in MSDN documentation that are accessible from desktop applications):
http://blogs.msdn.com/b/cdndevs/archive/2013/10/02/using-windows-8-winrt-apis-in-net-desktop-applications.aspx .
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Public Class VirtualMouseDeviceOpen
Class Enumeration
' Enumerate HID devices
Public Async Function EnumerateHidDevices() As Task
Dim vendorId As UInt32 = &HBEEF
Dim productId As UInt32 = &HFEED
Dim usagePage As UInt32 = &HFF
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Dim devices As Windows.Foundation.IAsyncOperation(Of Windows.Devices.Enumeration.DeviceInformationCollection) = DeviceInformation.FindAllAsync(selector)
Dim count As Integer = devices.GetResults.Count
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' At this point the device is available to communicate with
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End If
End Function
Class Vendor
Public Shared Async Function ReadWriteToHidDevice(device As HidDevice) As Task
If device IsNot Nothing Then
' construct a HID output report to send to the device
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Dim inReport As HidInputReport = device.GetInputReportAsync()
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Here's my report descriptor to avoid scrimmaging through everything trying to find it:
HID_REPORT_DESCRIPTOR G_DefaultReportDescriptor[] = {
0x06,0x00, 0xFF, // USAGE_PAGE (Vender Defined Usage Page)
0x09,0x01, // USAGE (Vendor Usage 0x01)
0xA1,0x01, // COLLECTION (Application)
0x85,CONTROL_FEATURE_REPORT_ID, // REPORT_ID (1)
0x09,0x01, // USAGE (Vendor Usage 0x01)
0x15,0x00, // LOGICAL_MINIMUM(0)
0x26,0xff, 0x00, // LOGICAL_MAXIMUM(255)
0x75,0x08, // REPORT_SIZE (0x08)
//0x95,FEATURE_REPORT_SIZE_CB, // REPORT_COUNT
0x96,(FEATURE_REPORT_SIZE_CB & 0xff), (FEATURE_REPORT_SIZE_CB >> 8), // REPORT_COUNT
0xB1,0x00, // FEATURE (Data,Ary,Abs)
0x09,0x01, // USAGE (Vendor Usage 0x01)
0x75,0x08, // REPORT_SIZE (0x08)
//0x95,INPUT_REPORT_SIZE_CB, // REPORT_COUNT
0x96,(INPUT_REPORT_SIZE_CB & 0xff), (INPUT_REPORT_SIZE_CB >> 8), // REPORT_COUNT
0x81,0x00, // INPUT (Data,Ary,Abs)
0x09,0x01, // USAGE (Vendor Usage 0x01)
0x75,0x08, // REPORT_SIZE (0x08)
//0x95,OUTPUT_REPORT_SIZE_CB, // REPORT_COUNT
0x96,(OUTPUT_REPORT_SIZE_CB & 0xff), (OUTPUT_REPORT_SIZE_CB >> 8), // REPORT_COUNT
0x91,0x00, // OUTPUT (Data,Ary,Abs)
0xC0, // END_COLLECTION
0x05, 0x01, // USAGE_PAGE (Generic Desktop)
0x09, 0x02, // USAGE (Mouse)
0xa1, 0x01, // COLLECTION (Application)
0x85, 0x02, // REPORT_ID (2)
0x09, 0x01, // USAGE (Pointer)
0xa1, 0x00, // COLLECTION (Physical)
0x05, 0x09, // USAGE_PAGE (Button)
0x19, 0x01, // USAGE_MINIMUM (Button 1)
0x29, 0x03, // USAGE_MAXIMUM (Button 3)
0x15, 0x00, // LOGICAL_MINIMUM (0)
0x25, 0x01, // LOGICAL_MAXIMUM (1)
0x95, 0x03, // REPORT_COUNT (3)
0x75, 0x01, // REPORT_SIZE (1)
0x81, 0x02, // INPUT (Data,Var,Abs)
0x95, 0x01, // REPORT_COUNT (1)
0x75, 0x05, // REPORT_SIZE (5)
0x81, 0x03, // INPUT (Cnst,Var,Abs)
0x05, 0x01, // USAGE_PAGE (Generic Desktop)
0x09, 0x30, // USAGE (X)
0x09, 0x31, // USAGE (Y)
0x15, 0x81, // LOGICAL_MINIMUM (-127)
0x25, 0x7f, // LOGICAL_MAXIMUM (127)
0x75, 0x08, // REPORT_SIZE (8)
0x95, 0x02, // REPORT_COUNT (2)
0x81, 0x06, // INPUT (Data,Var,Rel)
0xc0, // END_COLLECTION
0xc0 // END_COLLECTION
My UsageId is the first Usage Hex value in the report descriptor I believe (I am still a little confused too). My UsagePage is the hex values in the first Usage_Page in the report descriptor.
Note: the problem with the VB.NET code is that it returns 0 on the count above which means it did not find a device using my criteria.
Once you eliminate the impossible, whatever remains, no matter how improbable, must be the truth. - Sherlock Holmes. speak softly and carry a big stick - theodore roosevelt. Fear leads to anger, anger leads to hate, hate leads to suffering - Yoda. Blog -
http://www.computerprofessions.us

Before I start, I would like to share this link I used to access windows RT libraries from Desktop applications (only the ones stated in MSDN documentation that are accessible from desktop applications):
http://blogs.msdn.com/b/cdndevs/archive/2013/10/02/using-windows-8-winrt-apis-in-net-desktop-applications.aspx .
After following the above instructions you can import some of the windows RT libraries in references. I have been trying to use the Windows.Devices.HumanInterfaceDevice library. I think my UsagePage and UsageId are off though. I am wondering
if someone good in hex can translate them from my report descriptor. I already have the VID and PID (this should be enough along with the path if I called write file or some of the other win32/OS api's). Here's the code I am using in VB.NET:
Public Class VirtualMouseDeviceOpen
Class Enumeration
' Enumerate HID devices
Public Async Function EnumerateHidDevices() As Task
Dim vendorId As UInt32 = &HBEEF
Dim productId As UInt32 = &HFEED
Dim usagePage As UInt32 = &HFF
Dim usageId As UInt32 = &H1
' Create a selector that gets a HID device using VID/PID and a
' VendorDefined usage
Dim selector As String = HidDevice.GetDeviceSelector(usagePage, usageId, vendorId, productId)
' Enumerate devices using the selector
Dim devices As Windows.Foundation.IAsyncOperation(Of Windows.Devices.Enumeration.DeviceInformationCollection) = DeviceInformation.FindAllAsync(selector)
Dim count As Integer = devices.GetResults.Count
If count > 0 Then
' Open the target HID device
' At this point the device is available to communicate with
' So we can send/receive HID reports from it or
' query it for control descriptions
Dim device As HidDevice = HidDevice.FromIdAsync(devices.GetResults.ElementAt(0).Id, FileAccessMode.ReadWrite)
Await Vendor.ReadWriteToHidDevice(device)
Else
' There were no HID devices that met the selector criteria
MsgBox("MUTT HID device not found!", MsgBoxStyle.Exclamation)
End If
End Function
Class Vendor
Public Shared Async Function ReadWriteToHidDevice(device As HidDevice) As Task
If device IsNot Nothing Then
' construct a HID output report to send to the device
Dim outReport As HidOutputReport = device.CreateOutputReport()
' Initialize the data buffer and fill it in
Dim buffer As Byte() = New Byte() {10, 20, 30, 40}
Dim dataWriter As New DataWriter()
dataWriter.WriteBytes(buffer)
outReport.Data = dataWriter.DetachBuffer()
' Send the output report asynchronously
Dim a As Windows.Foundation.IAsyncOperation(Of UInteger) = device.SendOutputReportAsync(outReport)
' Sent output report successfully
' Now lets try read an input report
Dim inReport As HidInputReport = device.GetInputReportAsync()
If inReport IsNot Nothing Then
Dim id As UInt16 = inReport.Id
Dim bytes = New Byte(3) {}
Dim dataReader__1 As DataReader = DataReader.FromBuffer(inReport.Data)
dataReader__1.ReadBytes(bytes)
Else
MsgBox("Invalid input report received")
End If
Else
MsgBox("device is NULL")
End If
End Function
End Class
End Class
Here's my report descriptor to avoid scrimmaging through everything trying to find it:
HID_REPORT_DESCRIPTOR G_DefaultReportDescriptor[] = {
0x06,0x00, 0xFF, // USAGE_PAGE (Vender Defined Usage Page)
0x09,0x01, // USAGE (Vendor Usage 0x01)
0xA1,0x01, // COLLECTION (Application)
0x85,CONTROL_FEATURE_REPORT_ID, // REPORT_ID (1)
0x09,0x01, // USAGE (Vendor Usage 0x01)
0x15,0x00, // LOGICAL_MINIMUM(0)
0x26,0xff, 0x00, // LOGICAL_MAXIMUM(255)
0x75,0x08, // REPORT_SIZE (0x08)
//0x95,FEATURE_REPORT_SIZE_CB, // REPORT_COUNT
0x96,(FEATURE_REPORT_SIZE_CB & 0xff), (FEATURE_REPORT_SIZE_CB >> 8), // REPORT_COUNT
0xB1,0x00, // FEATURE (Data,Ary,Abs)
0x09,0x01, // USAGE (Vendor Usage 0x01)
0x75,0x08, // REPORT_SIZE (0x08)
//0x95,INPUT_REPORT_SIZE_CB, // REPORT_COUNT
0x96,(INPUT_REPORT_SIZE_CB & 0xff), (INPUT_REPORT_SIZE_CB >> 8), // REPORT_COUNT
0x81,0x00, // INPUT (Data,Ary,Abs)
0x09,0x01, // USAGE (Vendor Usage 0x01)
0x75,0x08, // REPORT_SIZE (0x08)
//0x95,OUTPUT_REPORT_SIZE_CB, // REPORT_COUNT
0x96,(OUTPUT_REPORT_SIZE_CB & 0xff), (OUTPUT_REPORT_SIZE_CB >> 8), // REPORT_COUNT
0x91,0x00, // OUTPUT (Data,Ary,Abs)
0xC0, // END_COLLECTION
0x05, 0x01, // USAGE_PAGE (Generic Desktop)
0x09, 0x02, // USAGE (Mouse)
0xa1, 0x01, // COLLECTION (Application)
0x85, 0x02, // REPORT_ID (2)
0x09, 0x01, // USAGE (Pointer)
0xa1, 0x00, // COLLECTION (Physical)
0x05, 0x09, // USAGE_PAGE (Button)
0x19, 0x01, // USAGE_MINIMUM (Button 1)
0x29, 0x03, // USAGE_MAXIMUM (Button 3)
0x15, 0x00, // LOGICAL_MINIMUM (0)
0x25, 0x01, // LOGICAL_MAXIMUM (1)
0x95, 0x03, // REPORT_COUNT (3)
0x75, 0x01, // REPORT_SIZE (1)
0x81, 0x02, // INPUT (Data,Var,Abs)
0x95, 0x01, // REPORT_COUNT (1)
0x75, 0x05, // REPORT_SIZE (5)
0x81, 0x03, // INPUT (Cnst,Var,Abs)
0x05, 0x01, // USAGE_PAGE (Generic Desktop)
0x09, 0x30, // USAGE (X)
0x09, 0x31, // USAGE (Y)
0x15, 0x81, // LOGICAL_MINIMUM (-127)
0x25, 0x7f, // LOGICAL_MAXIMUM (127)
0x75, 0x08, // REPORT_SIZE (8)
0x95, 0x02, // REPORT_COUNT (2)
0x81, 0x06, // INPUT (Data,Var,Rel)
0xc0, // END_COLLECTION
0xc0 // END_COLLECTION
My UsageId is the first Usage Hex value in the report descriptor I believe (I am still a little confused too). My UsagePage is the hex values in the first Usage_Page in the report descriptor.
Note: the problem with the VB.NET code is that it returns 0 on the count above which means it did not find a device using my criteria.
Once you eliminate the impossible, whatever remains, no matter how improbable, must be the truth. - Sherlock Holmes. speak softly and carry a big stick - theodore roosevelt. Fear leads to anger, anger leads to hate, hate leads to suffering - Yoda. Blog -
http://www.computerprofessions.us
I forgot anyone wanting a picture of what the device hierarchy looks like in control panel here it is (HID compliant vendor device is the first one in the report descriptor above I want to access and then the mouse device):
Once you eliminate the impossible, whatever remains, no matter how improbable, must be the truth. - Sherlock Holmes. speak softly and carry a big stick - theodore roosevelt. Fear leads to anger, anger leads to hate, hate leads to suffering - Yoda. Blog -
http://www.computerprofessions.us

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Here,
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Here is the version info of the installed map:
I have Bluetooth enabled. Now, when I use the maps, every second the"Last devices used" pops up and goes away again. Mildly irritating would be a severe understatement here. Switching Bluetooth off and starting the map again gives the question "Bluetooth is currently switched off. Switch on?". Every second. It seems impossible to answer the popup-question or do something with the popup-menu.
Is this a known prob by anyone, and can you please tell me a fix or workaround (preferably a fix of course)?
Thank you,
wlamee
Solved!
Go to Solution.

And I got a nippy reply from the Benelux Nokia Care.
The trick is I had to go to Tools -> Settings -> General -> Positioning -> Positioning Methods, and switch off 'Bluetooth GPS'. I think I always ahd this switched on and it never complained with the standard Nokia maps, but I'm not sure - I think I saw that menu only once, when I was palying with my GPS and the original maps.
But hey, it's fixed. Cool!
wlamee

Maintaining clock settings on a 2950 switch?

I have set up external NTP synchronization on a 2950 switch which works fine while the switch is powered on. However if the switch is cycled with a "reload" command, the time established is way off once the switch comes back up. Is this the expected behaviour?
Thanks.

BTW:
Also sometimes difficult finding mention whether the hardware supports an on-board calendar. I've found using the ntp update-calendar both often a fast method to help in determining this, and a great way to keep the calendar accurate across reboots/reloads (if you're using NTP).

Flash Builder 4.5: debugging Flex Mobile application on Android Virtual Device

Hi,
we are trying without success to debug a flex mobile application in Flash Builder 4.5 on an Android Virtual Device (AVD).
We can debug with real Android devices via Flash Builder 4.5, by using a standard Mobile Application debug configuration with "On device" launch method, but emulated devices are not listed in the "Choose device" Flash Builder 4.5 window.
The emulated device is correctly listed by "adb" command line tool, as the following screenshot shows:
c:\Program Files (x86)\Adobe\Adobe Flash Builder 4.5\sdks\4.5.0\lib\android\bin\adb" devices
List of devices attached
emulator-5554 device
("emulator-5554" has been created and started with Android AVD Manager standard Eclipse plug-in)
By using the adb command-line tool we can also install applications on the emulated device, but we'd like to use Flash Builder 4.5 directly, without manually using adb.
Many thanks in advance for any direction.
PS: we can debug with Flash Builder "internal" android emulator (the one used with "On desktop" launch method), but we want to use the more "realistics" android emulated devices provided by Android SDK (Android Virtual Device (AVD)).

well that's just ... oh what's the word I'm looking for? ... um ... ah yes - inconvenient.
I've been wrestling with this too. I use VDs with eclipse all the time, I'm wondering why it's not supported in flashbuilder. I mean, it's just a VD that runs on a virtual port, plugs into the editor like a read device would - right?
I'm going to take a wild stab at this and say it probably has something to do with running a program inside (Air) a virtual machine, running inside a virtual machine inside a virtual device?

Not able to recognize any video/audio devices using jmf and java soun

Hi ,
I need one help from your side.
Here I am expecting some clarifications from you. Before that let you my environement.
My working environment :
Eclipse tool and added jmf jar to my project I did not do any thing more.
If any thing I need to do just let me know. My target platform is MAC & UBUNTU.
Please bare with my questions.
1) I am not able to recognize any video/audio devices using jmf and java sound APIs on My system.
( I checked with the app mentioned in the http://www.java-forums.org/new-java/11201-jmf-cannot-connect-device.html )
Do we need any administrives rights for our working PC.
What is the procedure/ setup I need to follow from a java application to enable particular audio/video device since I dont about end-user system setup right.
If possible send some sample code to recognize /r detect audio device ( voice input ). It should run on both MAC and UBUNTU.
2) I run the one sample audio recording application of this link (http://www.jsresources.org/examples/SimpleAudioRecorder.java.html) which is provided by YOU.
I got output audio file and able to hear voice on UBUNTU system but not able to hear voice on MAC system.
I heared that default line in ( audio setup of the sys) is wont take any voice data on MAC.Why I made this stmt means we are getting false when using isSupported methods of JAVA SOUND API.
( like for TragetdataLine ...i,e, all ports are getting false)
I have one sample audio recording app implemented by QUICKTIME API. In this case also he taking audio ftom device only using quicetime API.
With that we are able to record and hear audio ( voice input --> not line in , external device we added some thing like SSB...)
3) In case of Video capturing DataSource, Streams are implemented by PullBufferDataSource , PullBufferStream intefaces used.
In case of Audio capturing DataSource, Streams are implemented by PushBufferDataSource, PushBufferStream intefaces used.
Can you explain the reasons ? I gone through API but i am not clear.
HOPE I WILL BE CLARIFIED EVERY THING FROM YOU.
Thanks
RamaRao.G

Hi ,
I need one help from your side.
Here I am expecting some clarifications from you. Before that let you my environement.
My working environment :
Eclipse tool and added jmf jar to my project I did not do any thing more.
If any thing I need to do just let me know. My target platform is MAC & UBUNTU.
Please bare with my questions.
1) I am not able to recognize any video/audio devices using jmf and java sound APIs on My system.
( I checked with the app mentioned in the http://www.java-forums.org/new-java/11201-jmf-cannot-connect-device.html )
Do we need any administrives rights for our working PC.
What is the procedure/ setup I need to follow from a java application to enable particular audio/video device since I dont about end-user system setup right.
If possible send some sample code to recognize /r detect audio device ( voice input ). It should run on both MAC and UBUNTU.
2) I run the one sample audio recording application of this link (http://www.jsresources.org/examples/SimpleAudioRecorder.java.html) which is provided by YOU.
I got output audio file and able to hear voice on UBUNTU system but not able to hear voice on MAC system.
I heared that default line in ( audio setup of the sys) is wont take any voice data on MAC.Why I made this stmt means we are getting false when using isSupported methods of JAVA SOUND API.
( like for TragetdataLine ...i,e, all ports are getting false)
I have one sample audio recording app implemented by QUICKTIME API. In this case also he taking audio ftom device only using quicetime API.
With that we are able to record and hear audio ( voice input --> not line in , external device we added some thing like SSB...)
3) In case of Video capturing DataSource, Streams are implemented by PullBufferDataSource , PullBufferStream intefaces used.
In case of Audio capturing DataSource, Streams are implemented by PushBufferDataSource, PushBufferStream intefaces used.
Can you explain the reasons ? I gone through API but i am not clear.
HOPE I WILL BE CLARIFIED EVERY THING FROM YOU.
Thanks
RamaRao.G

Application timeouts w/ subnet devices using 2950 switching

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