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Thread: Network Bandwidth affected

  1. #1
    Join Date
    Jun 2008
    Ubuntu Studio 11.04 Natty Narwhal

    Network Bandwidth affected

    Hey ubuntu world ..

    lately i have noticed this weird behavior in my office internet connection .. whenever i run the ubuntu OS updates, on any ubuntu computer, the whole internet connection does dead slow .. i mean we have a corporate T1 line, wherein at any given time the download/upload speed is 10/10 mbps .. but running a simple OS update ( during which the download speed is around 1.5 to 2.5mbps ) almost halts the entire traffic .. any reason why ???

    its a simple office setup, with NETGEAR ProSafe VPN Firewall FVS336GV2
    and basic portforwarding rules enabled .. thats it .. nothing fancy ...

    any inputs would be greatly appreciated. .. thanks ..
    Thinkpad X61
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  2. #2
    Join Date
    Sep 2006
    Silicon Valley, CA, USA

    Re: Network Bandwidth affected

    A very cursory test on my uduntu machine with iptraf and bmon showed just an apt-get update using ingress 200-1000kbps, egress ~400kbps, this is with no packages being downloaded

    Are you sure about your bandwidth? Remember most sites like give you your speed in BITS, and application download speeds are generally given in BYTES. This means that for each 1MBps download is 8mbps in ISP-speak.

    I recommend updating during non-peak hours or policing your apt-get traffic, I am not sure what knobs Netgear offers for traffic engineering.
    Jeff Moorse

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