MacPro is utilizing abnormally high bandwidth

We have a MacPro that is utilizing high ammounts of bandwidth for no apparent reason. Between the hours of 11 PM and 7 AM it used 5 GB of data through our firewall. During this time no one was using the computer.
Below is a list of thigs we have tried so far.
1) Switching from NIC1 to NIC2
2) Using a USB to NIC adater
3) Running a full system antivirus scan
4) Verified all applications and the O/S are patched.
5) Built a brand new OS X 10.8.5 disk fully patched with clean installs of applications and none of the users settings. (5 GB 11 PM to 7 AM)
6) Plugged into different port on switch
7) Tested patch cable and line to patch panel
Below is a list of the software on the machine:
1) OS X 10.8.5 fully patched
2) Adobe Design Standard 6 Fully patched
3) Office 2007 (Outlook running via MS Hosted Exchange) minimum email traffic during the evening
4) Suitcase Fusion 4
5) Stuffit Expander
6) Firefox
7) Chrome
These are all the apps installed on the clean machine.
Please help, at this point I cant see how this is not a hardware issue. it is connected to a Cisco 2960 series Switch. We have 18 other MacPro users in the department who are not having this issue.
thanks!

Most often BitTorrent, iCloud, Dropbox, or some other cloud-data application is involved in cases of mysterious bandwidth use by a Mac. If you use iCloud, uncheck at least Photo Stream and Documents & Data in its preference pane and see whether there's any change. If you use third-party network backup or file-sync software, disable that. If you use a torrent client, remove it.
Otherwise, there's no easy way to monitor network usage per process using built-in tools. If you're an advanced user and you want to try, see the manual page for the nettop(1) shell command. It may or may not provide the information you're looking for.
The third-party products Rubbernet and Little Snitch are supposed to record network usage by processes. I can't vouch for them. Both were available as free trials, the last time I checked. I suggest you uninstall either one when the question has been answered.

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Skype 4.2.0.11 has abnormally high CPU usage while...

Skype 4.2.0.11 has abnormally high CPU usage while idle.
I can't get my laptop under 70 degrees celsius unless I cpulimit or quit skype, and cpulimiting it actually makes it completely unresponsive, as if some other thread is constantly generating a lot of work and taking priority over the UI thread.
What the heck is skype doing? (And why do any of its threads need nice -10?) It takes up more CPU time than pulseaudio, truecrypt, and deluged combined.
Its CPU usage is constantly between 5 and 50 percent*, it's absolutely horrible.
*While idle. I'm unable to make calls.
I know this is expected from a linux user, but for all I know, Skype is malware. It's not open-source, so I can't find out for myself, and there are no open-source alternatives so the frankly shameful amount of bugs I encounter in Skype will never be fixed.
There are several bugs I'd love to be fixed in Skype, but first, PLEASE, optimize your code. It's absolutely horriffic at the moment.

Attached are statistics from my desktop over approximately a 24 hour period for the processes shown (other than firefox and adb).
Pulseaudio tops skype this time but that's because I've had music playing through mpd for a few hours. Skype uses more than 16 times the CPU that pidgin does, and almost double the RAM! RAM isn't shown in the screenshot but take my word for it. Bear in mind that I haven't taken (or made) any calls in this period of time, and pidgin has been signed into three different services and using encrypted chat.
I really wish that at least the protocol would be documented so someone could work around this, at the moment I don't think the guys writing skype realize just how unstable the linux port is. At least it's better than the Android port.
[Edit for those unfamiliar with linux processes: "TIME" is the cumulative time that the program has been scheduled for on any core, effectively making it a measure of total CPU usage for a given time period]
Attachments:
2014-06-22-233238_530x119_scrot.png ‏9 KB

High Bandwidth Voltage Input Isolation

Hello,
I'm using the NI 6025E DAQ board and connect it through the SC2050 conditioning board to an analog I/O board, 5B01. I would like to isolate between the board and an analog signal coming out of of a DUT unit, and I need the isolation unit to be able to handle signals of Mghzs bandwidths.
I realize that I cannot find a 5Bxx unit with such high BW, but what do you recommend I should do instead ?
Michael.

Hello Michael,
I see that you are looking for an isolation module to connect to your 6025E device that has a bandwidth in the MHz range. Unfortunately, I think this type of setup will not work for you since the 6025E has a maximum sampling rate of 200kHz. If you need to be able to sample data in the MHz range you will need to have a device that can sample much faster (i.e. High Speed S-Series or NI-Scope products).
Typically you do not see much signal conditioning for these types of devices since they have such a high bandwidth. For example if you look at our SXCI isolated analog input modules they have a bandwidth of just over 20kHz.
I hope this helps. If you have any additional questions can you please give us a little more information about the signal coming from your DUT (i.e. voltage and frequency range and what type of isolation you are looking for)?
Regards,
Jesse O.
Applications Engineering
NIC
Message Edited by Jesse O on 10-17-2006 10:44 AM
Jesse O. | National Instruments R&D

Rate limit high bandwidth application

I have a 10mb line from a site office to my HQ.
there is one user in the HQ office that is running some high bandwidth application, taking up 50% of my total bandwith.
its some video monitoring system.
i am using a C1841 router.
how do i limit the bandwidth the user can occupy ?
SrcIf SrcIPaddress DstIf DstIPaddress Pr SrcP DstP Bytes
Fa0/0 10.200.2.181 Tu1002 10.200.90.158 06 022A CC9F 46M
Fa0/0 10.200.2.181 Tu1002 10.200.90.158 06 022A CCE7 32M
Fa0/0 10.200.2.181 Tu1002 10.200.90.158 06 022A CD01 25M
Fa0/0 10.200.2.181 Tu1002 10.200.90.158 06 022A CC9C 21M
Fa0/0 10.200.2.181 Tu1002 10.200.90.158 06 022A CE2B 9478K

i have enable nbar on the router.
what i can see that all are gre traffic.
FastEthernet0/1
Input Output
Protocol 5min Bit Rate (bps) 5min Bit Rate (bps)
gre 223000 288000
bgp 0 0
ntp 0 0
bittorrent 0 0
citrix 0 0
cuseeme 0 0
custom-01 0 0
custom-02 0 0
custom-03 0 0
custom-04 0 0
unknown 0 0
Total 223000 288000

Capwap high bandwidth utilization

Hello,
I would like to know if this traffic is correct... (wan link - remote APs)
minute:
15 minutes:
I think that something is wrong... there is a high bandwidth utilization.
All APs are configured with h-reap and local switching.
All traffic wan link - 15 minutes:
thanks.

Maybe this answer my question?
Ongoing Exchanges
Heartbeat
The LWAPP architecture provides for a heartbeat timer that is
      accomplished by a series of Echo Requests and Echo
      Responses. An AP periodically sends Echo Requests in order to
      determine the state of the connection between the AP and the WLC. In response,
      the WLC sends the Echo Response in order to acknowledge the receipt of the Echo
      Request. The AP, then, resets the heartbeat timer to the
      EchoInterval. The LWAPP protocol specification draft contains
      a detailed description of these timers. The system heartbeat, coupled with
      fallback mechanism, is 4 packets every 30 seconds and is comprised of these
      packets:
LWAPP ECHO_REQUEST from AP (78 bytes)
LWAPP Echo-Response to AP (64 bytes)
LWAPP PRIMARY_DISCOVERY_REQ from AP (93 bytes)
LWAPP Primary Discovery-Response to AP (97 bytes)
This exchange generates 33 bytes of traffic every 30 seconds.
RRM Measurements
There are two ongoing RRM exchanges. The first one, at every 60-second       interval, is the load and signal measurement and consists of 4 packets. This       exchange always adds up to 396 bytes:
LWAPP RRM_DATA_REQ from AP (107 bytes)
LWAPP Airewave-Director-Data Response to AP (64 bytes)
LWAPP RRM_DATA_REQ from AP (161 bytes)
LWAPP Airewave-Director-Data Response to AP (64 bytes)
The second sequence of packets is the noise measurement that includes a       statistics information request and response sequence. It is done every 180       seconds. This short exchange of packets averages approximately 2,660 bytes and       typically lasts 0.01 seconds. It consists of these packets:
LWAPP RRM_DATA_REQ from AP
LWAPP Airewave-Director-Data Response to AP
LWAPP RRM_DATA_REQ from AP
LWAPP Airewave-Director-Data Response to AP
LWAPP RRM_DATA_REQ from AP
LWAPP Airewave-Director-Data Response to AP
LWAPP RRM_DATA_REQ from AP
LWAPP Airewave-Director-Data Response to AP
LWAPP STATISTICS_INFO from AP
LWAPP Statistics-Info Response to AP
LWAPP RRM_DATA_REQ from AP
LWAPP Airewave-Director-Data Response to AP
LWAPP RRM_DATA_REQ from AP
LWAPP Airewave-Director-Data Response to AP
LWAPP RRM_DATA_REQ from AP 00:14:1b:59:41:80
LWAPP Airewave-Director-Data Response to AP
LWAPP RRM_DATA_REQ from AP
LWAPP Airewave-Director-Data Response to AP
LWAPP STATISTICS_INFO from AP
LWAPP Statistics-Info Response to AP

High Bandwidth Utilization

Hi all,
i am a newbie here. Currently i am working as net admin which is i need to monitoring and manage my workplace network( education center )
I got a few question about network traffic flow. Here is the issued.
I got high bandwidth utilization so high after office hours which is only on night. as we know, after office hours there is no person at the office but the traffic flow on bandwidth utilization is high.
what are the possibilities of this issued? If there any possibilities that cause the event, I'd like to know everything that may cause it.
Thanks

What switches do you have?
What router are you using?
What servers do you have?
What time does the high utilization start and what time does it end?
Are you running backup across the WAN links?

High Bandwidth Option

I have read this stream regarding video.
http://www.connectusers.com/forums/cucb
… p?pid=1599
It is stated there that the "High Bandwidth" option can be
activated at the account level. Can find nothing about it anywhere.
Questions:
What would it do for me if I could activate it?
Are there other ways to enhance the video experience in
addition to using the options under "Meeting?"
My connection is Time Warner Cable Business Class 5 down x
1.5 up. Is that enough for good quality video? Would DSL work
better?
Knowing that there are many factors outside my control that
will impact video, are there things within my control that I could
do to enhance it?
Have Adobe hosted account.
Thank you.

You will have to contact Adobe support. See link below. I
have not seen it on a hosted account - only licensed. But be aware
that meeting participants might have limited bandwidth. "High
Bandwidth" option don't have a kbps limit and streams at 30 fps for
both LAN and DSL set-up. To compare the "high quality images"
option streams at 250 kbps and 12 fps (LAN) and 125 kbps and 12 fps
(DSL). For most webinars and webmeetings the "High Bandwidth"
option will not provide better meetings - only increase latency.
John K.
http://www.adobe.com/go/2daec9b0

Why does it take so long to download a service? Its been over 4 hours. I have high bandwidth. This is unacceptable

Why does it take forever for Dreamweaver to download? I'm running on a high bandwidth. I've been at this all night. Reconsidering a purchase.

Are you trying to install Dreamweaver app from Adobe Creative Cloud application ?
If so , may I know @ wat percentage the progress at stuck ?

EXP utillity has higher version than database - export failed !

Hi,
I have a Oracle8 Enterprise Edition Release 8.0.5.0.0 database on our server and I have installed a 9i client on my PC. Now I have to use the export utility to export a specific table from our DB, but as I read from 'Oracle9i Database Utilities' book:
"The version of the Export utility must be equal to the lowest version of the source or target database".
So, I guess I need to install a 8.0.5 client on my PC (I have W2K) but nobody can give me the install CD in the company:(
I've looked on the OTN page if I can find the needed version, but I found only the 8i (8.1.7) install kit. Do you think it shall work the EXP utility if I install that ? Or can I find somewhere else the 8.0.5 install kit ?
Thanks:
Szilard
PS: the error message what I got when I tried to export with 9i client from 8.0.5 DB:
C:\exp user/passw file=myexp.dmp tables=emp;
EXP-00056: ORACLE error 2248 encountered
ORA-02248: invalid option for ALTER SESSION
EXP-00000: Export terminated unsuccessfully
, but the same command line from a 9i DB worked...

Since your target server is 8.0.5, you should have the EXP utility from a 8.0.x versions. Anything higher will not work.
HTH.

Do router/firewall ports need to be opened for higher bandwidth?

Currently I use iChat between myself and my mom across town with decent results. The video is blurred but extremely smooth.
We are both on broadband with different ISPs (Telus & Shaw) with our own routers. None of the ports on either router are open for iChat yet we connect fine.
If I opened up iChat ports on both routers will that allow more bandwidth to flow through the video resulting in less blur?

Hi
No it will not give any more bandwidth, seeing you have iChat working i would leave the ports alone
Have you both set the Quicktime settings, goto sys prefs/quicktime/streaming/streaming speed set what you get from your ISP go no higher then 1.5mbps(dont use automatic)
In ichats prefs click on video and change bandwidth limit to NONE.
Restart iChat.
Tony

Sound playback: no sound, abnormally high bitrate.

I've been reading up on using JMF for simple sound playback all day, and I've seen countless examples that do the same thing I'm doing, but in every instance, I get absolute silence. Additionally, it seems that the read bitrate is higher than it should be, according to the control panel's properties dialog (e.g., 480Kbps for a 192Kbps mp3).
The code always goes something simple like this:
    Player player = null;
    try {
      MediaLocator ml = new MediaLocator(new File("BGM.mp3").toURL());
      player = Manager.createPlayer(ml);
    catch (Exception e) { System.err.println("BGM messed up"); }
    if (player != null) {
      player.addControllerListener(p);
      player.start(); //this does realize and prefetch
    }I put some debug output statements in my controllerUpdate function, and it is indeed realizing, prefetching, and starting playback of the file. I have tried this with both wav's and mp3s (I have the mp3 plugin installed in addition to the JMF 2.1.1e itself), and have always gotten the same result - MediaTime progresses too fast, roughly 2.5 times faster than it should (5 seconds for every 2 real seconds), and I get no sound.
At this point, after having tried at least 2 examples found online in addition to my own code, I'm convinced there's something up with my Java runtime in itself, not just my code... anyone have any experience with this kind of problem?
System Info:
OS: Windows XP Pro SP1
Java Version: 1.5.0_02
JMF Version: 2.1.1e (zip version [no performance pack], with mp3plugin added)
Thanks in advance for any help.

Do you use it in an Applet ?
I'm also unable to play any sound with Java(TM) Plug-in 1.5.xx the
plugin to all browsers nowadays.
You mentioned you used it on Windows 98 SE.
The old IE browser used the build in javaVM. It worked - just look at
the java consol and you see a lot of warnings and errors -, but in the
end it played video and sound.
The only solution I found is to use Java(TM) Plug-in 1.4.xx. The
'automatic search for update' box must not be checked, otherwise it
will update to the newest Plugin and you face the same problem. If you
want to place an applet on your homepage, just use video only - until
now it works correctly on ALL PLATFORMS.
There was a Bug Report 6245070 where I was asked as well to give an
example a year ago, but this was all - no response at all. In this
applets I used
Content Type : video.quicktime
Video Encoding : h263
Audio Encoding : ULAW
not even mpg3!!
I tried to compile the whole JMF Version: 2.1.1e with J2SE 5.0 and
Standard Edition 6 Beta. At one version I changed all the
inconviences like the reserved words "enum" ..., and an other version
with old style, which is possible with Standard Edition 6 Beta.
It seem's the problem is not in the part you are able to compile. It
seems to me it is in the sound.jar api, but I really don't know - just
trail and error.
Conclusion only JRE lower and until version 1.4.xx will work.
It would be a pleasure to me if I'm wrong and there is a solution.

DFSR performance question - high latency and high bandwidth - windows 2012r2

Hello,
first question here...
We have a pair of backup servers, connected with a 1G WAN link (290 ms latency).
I am replicating backup files (mainly SQL files) between them (one-way), for DR/BCP purposes.
a Get-DfsrState regularly shows hundreds of files in waiting state, and only 16 or so being downloaded at the same time. The system is using very little bandwidth, much less than what I have set in the replication properties (256mbps)
Is there any parameter I can tweak to increase the number of files being transferred in parallel copies?
Before you ask, the WAN circuits are fine and currently ~80% free. I can easily saturate them using other technologies (rsync, gluster, HTTP). The servers are doing very little as well (2x6C, 32G ram, lots of disks, CPU usually under 10%).
Any idea on how to speed this up? I saw some registry settings in old articles for windows 2008r2, but nothing for 2012r2.
Thanks

Hi,
It seems that the number of downloading files is not related to bandwidth.
By default, a maximum of 16 (four in Windows Server 2003 R2) concurrent downloads are shared among all connections and replication groups. Because connections and replication group updates are not serialized, there is no specific order in which updates are
received. If two schedules are opened, updates are generally received and installed from both connections at the same time.
For more detailed information, please refer to the thread below:
DFSR to Multiple sites over slow bandwidth links
http://social.technet.microsoft.com/Forums/en-US/aedfc06d-9ffa-408c-8852-08fb14c115f0/dfsr-to-multiple-sites-over-slow-bandwidth-links
Regards,
Mandy
We
are trying to better understand customer views on social support experience, so your participation in this
interview project would be greatly appreciated if you have time.
Thanks for helping make community forums a great place.

Seeing event 1564 causing failure in two node cluster, with file witness on same subnet (at same, low latency, high bandwidth site)

Hello all,
Yesterday, we faced an issue early in the day that our cluster removed all active nodes (exchange 2010 DAG). and the root cause was because we lost contact with the alternate cluster node (over a WAN link), and concurrently lost connectivity to the file
witness share (event id 1564 was recorded).
The odd thing is that the cluster should be tolerant to having the second node be unreachable, as long as the file witness share is reachable by the node. Being that the file witness share is located at the same physical site (possibly inside the same
hypervisor host), the idea that the share is ever unreachable is very interesting!
The system engineering team has adjusted the CrossSubnetDelay and CrossSubnetThreshold values, but I do not think this will solve the problem of the file witness server being inaccessible by the node.
[PS] C:\>cluster /prop | Select-String "Subnet"
D CONTOSO-DAG CrossSubnetDelay 4000 (0xfa0) # not default
D CONTOSO-DAG CrossSubnetThreshold 10 (0xa) # not default
D CONTOSO-DAG PlumbAllCrossSubnetRoutes 0 (0x0)
D CONTOSO-DAG SameSubnetDelay 1000 (0x3e8) # default
D CONTOSO-DAG SameSubnetThreshold 5 (0x5) # default
What can I further investigate in relation to the file witness share being inaccessible? Are there any settings that we can adjust to make sure the node is more tolerant to file witness share availability? There may be a variety of things occurring
on the file witness share server, like VSS snapshots, etc. But none of these things are expected to be interferring with the operations of (1) the OS, or (2) the availability and accessibility of any share.
Thanks,
Matt

Hi mbrownnyc,
The quorum configuration in a failover cluster determines the number of failures that the cluster can sustain while still remaining online.
If an additional failure occurs beyond this threshold, the cluster will stop running.
A common perception is that the reason why the cluster will stop running if too many failures occur is to prevent the remaining nodes from taking on too many workloads and having the hosts be overcommitted.
Generally multi-site clusters have two sites with an equal number of nodes at each site, giving an even number of nodes.
By adding this additional vote at a 3rd site, there is an odd number of votes in the cluster, at very little expense compared to deploying a 3rd site with an active cluster node and writable DC. Therefore when your cluster node can connect the witness
and got the higher vote, that node will keep running when others node fail.
Please offer use more information about your environment, such as your server edition and your network nic advanced configuration. You can install all the recommend update
or following the following steps to narrow the issue first.
1.Configure Heartbeat according your network delay and DNS Settings in a Multi-Site Failover Cluster
http://technet.microsoft.com/en-us/library/dd197562(WS.10).aspx
a) If issue still persist check wet Windows
Cluster is healthy or not.
b) Check wet nodes are communicating properly with FSM.
c) Increase the heart beat interval by running the commands:
cluster /prop SameSubnetDelay=2000
cluster /prop SameSubnetThreshold=10
Follow this article
http://technet.microsoft.com/en-us/library/dd197562(WS.10).aspx
d) Confirm your cluster CNO have full permissions on the FSW.
2. Check if AV scanning is set properly on C:\Windows\Cluster folder and FSW folder
3. Uninstall Symantec Endpoint Protection for troubleshooting purpose
4. Break the teaming if you are using it.
5.
TCP Chimney \ RSS \ NetDMA issue
Information about the TCP Chimney Offload, Receive Side Scaling, and Network Direct Memory Access features in Windows Server 2008
http://support.microsoft.com/kb/951037
More information:
Understanding Quorum in a Failover Cluster
http://blogs.msdn.com/b/clustering/archive/2011/05/27/10169261.aspx
Clustering: What exactly is a File Share Witness and when should I use one?
http://blogs.technet.com/b/askpfeplat/archive/2012/06/27/clustering-what-exactly-is-a-file-share-witness-and-when-should-i-use-one.aspx
Example, Clustered Service or Application in a Multi-Site Failover Cluster
http://technet.microsoft.com/zh-cn/library/dd197519(v=ws.10).aspx
I’m glad to be of help to you!
We
are trying to better understand customer views on social support experience, so your participation in this
interview project would be greatly appreciated if you have time.
Thanks for helping make community forums a great place.

Youtube App is still a joke - why is there no button to switch to High-Quality on a 3G network with high bandwidth?

I was hoping that with iOS5 Apple is also updating the remaining Youtube App - but NO - the problem: Videos are shown in extremely bad resolution when you are logged in a 3G Network - when you are logged in via wifi then the quality of the same video is superb. The workaround: You have to go to the mobile version of youtube and watch the videos via Browser - there is a button to change to High-Quality manually - this button is missing in the Apple-Youtube-App - why is it this difficult for Apple to integrate this function - we have one of the best 3G networks here in Austria, usually there is a download-speed of approximately 2 - 5 Mbit - there is no need to reduce the bit rate when watching youtube mobile on iPad or iPhone on a 3G network. In early days the quality of youtube videos was very bad so it was not a real problem, nowadays when we "could" watch nearly HD on iPad when being on a presentation this IS a problem. Please Apple, these are so simple wishes ...

These are user-to-user forums, they are not monitored by Apple (there are too many forums/threads/messages for that to happen). If you want to leave feedback for Apple then you can do so here : http://www.apple.com/feedback/ipad.html

High bandwidth usage while inactive

Twice today I've glanced at Activity Monitor's Dock icon, which I have set to view Network Usage, and saw a large amount of data streaming continuously through my internet connection.
This morning when I noticed it for the first time, I poked around my system, and after not seeing any other programs (Safari, Software Update, etc.) being active, I tried quitting Messages Beta - and the bandwidth instantly dropped down to nothing. At that time, it was moving around 60KB/sec upstream, and probably around half that downstream according to Activity Monitor.
A few minutes ago this evening, I saw it happen again - my Activity Monitor was showing heavy continuous bandwidth usage. This time I simply set my status to 'Offline' in Messages Beta and once again it instantly dropped down to nothing. This time the bandwidth was closer to 160kb/sec upstream, and half that downstream! When I changed my status back to 'Available' a few seconds later, everything continued on normally, with almost no data usage.
I had no active chats going, never used video, screen or file sharing - so what in the world is Messages Beta doing with so much data streaming? I'm quite mystified, and wondering if anybody else has seen this happen....

The issue seemed to be local network traffic.

MacPro is utilizing abnormally high bandwidth

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