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Constant network traffic

3641 Views 6 Replies Latest reply: Nov 16, 2009 11:23 AM by Starfish22 RSS
Starfish22 Calculating status...
Currently Being Moderated
Nov 19, 2007 10:55 AM
I am using 10.5.1 and it seems that since the upgrade (to 5.1), I am getting constant network traffic averaging 30KB/s in and out sometimes as high as 50KB/s. Disconnecting my internet connection makes it stop but is not a practical solution for me.
BTW, I am getting the information about the net traffic from iStat Menus.
Is there any way i can tell what is going on?
I have checked Activity Monitor and its says that packets are being received and sent but I can't tell to where or from where.
Thanks in advance for any light shed on this subject.
Dual G5, Mac OS X (10.5)
  • Camelot Level 8 Level 8 (45,670 points)
    Currently Being Moderated
    Nov 19, 2007 4:05 PM (in response to Starfish22)
    The command line tool tcpdump will show all traffic in and out of your network, like:

    <pre class=command>sudo tcpdump -i en0</pre>

    to watch traffic on en0. You can specify any other interface if that's not where the traffic is flowing.
    tcpdump also has an extensive list of options for looking at the traffic, including looking at the packet data (as opposed to just the headers, which is what the above command will do).
    Mac OS X (10.5)
  • Roger Smith3 Level 6 Level 6 (13,475 points)
    Currently Being Moderated
    Nov 20, 2007 4:22 PM (in response to Starfish22)
    mdns is Bonjour. It can be shut off in 10.5, but it's not all that easy. You have to shutdown about 4 things with launchctl.

    Roger
    XServer, Mac OS X (10.4.7), XRAID, Xasperated
  • Roger Smith3 Level 6 Level 6 (13,475 points)
    Currently Being Moderated
    Nov 21, 2007 3:40 PM (in response to Starfish22)
    Assuming that what you posted was a section of traffic that just kept repeating, I can't imagine why changing passwords would matter as far as the amount of traffic. The amounts of traffic that you're quoting, and that snippet showing Bonjour blathering, don't seem out of line to me. I've never broken out Bonjour traffic, so I don't really know how much there is, I just don't like advertising in general.

    It's very possible that you notice the Bonjour traffic on the server because it advertises more services than your other machines do, but they're doing it too.

    Roger
    XServer, Mac OS X (10.4.7), XRAID, Xasperated

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