> > > >---- Original Message ---- >From: kushalkool...@hotmail.com >To: ow...@netptc.net, debian-user@lists.debian.org >Subject: RE: Network interface testing utlity >Date: Sun, 4 Oct 2009 13:57:20 -0700 > >> >>> Your monitor will indirectly monitor these errors if >>> it measures throughput which will decrease as the errors increase. >>I always thought that the fields "Error on Receiving/Transmission", >for example in the package ethstatus, is for telling if there are any >errors detected in the link layer? Isn't that the case? If not, then >what does those error tell you about? >> >> >>Kushal Koolwal >> >>I do blog at http://blogs.koolwal.net/ >> >> I'm not familiar with ethstatus but most error monitoring these days is done at the TCP/IP level in software L >> >> >> >> >> >>---------------------------------------- >>> From: ow...@netptc.net >>> To: kushalkool...@hotmail.com; ow...@netptc.net; >debian-user@lists.debian.org >>> Subject: RE: Network interface testing utlity >>> Date: Sun, 4 Oct 2009 07:32:53 -0700 >>> >>>> >>>> >>>> >>>>---- Original Message ---- >>>>From: kushalkool...@hotmail.com >>>>To: ow...@netptc.net, debian-user@lists.debian.org >>>>Subject: RE: Network interface testing utlity >>>>Date: Sat, 3 Oct 2009 23:37:52 -0700 >>>>
>>>>>> OK then. The next question is how and what you intend to test. >Are >>>>>> you trying only to test a link (the media between your box and >the >>>>>> next box) or end-to end (where the two boxes are separated by >many >>>>>> links and many routers)? >>>>>> Probably a block diagram of your proposed test setup would >help. >>>>BTW >>>>>> what media types? >>>>> >>>>>The idea is to test between two boxes (connected directly with a >>>>standard CAT5 cable) to eliminate/minimize any other network >>>>interference caused by routers, switches, hubs, etc. >>>>> >>>>>On one box I will have my Gigabit Ethernet card (connected with >>>>different media types) that I want to test and on the other end of >>>>the box, I am going to have a standard known reference Gigabit >>>>Ethernet. >>>>> >>>>>The media types are: >>>>>a) Standard CAT5 >>>>>b) Custom twisted pair >>>>> >>>>>Kushal Koolwal >>>>> >>>>>I do blog at http://blogs.koolwal.net/ >>>>> >>>>> >>>>> >>> OK then, here's my opintion >>> All (?) the tools you mention including Wireshark which is the one >I >>> use will provide network statistics. Since they are software, >>> however, they reside above (in the protocol sense) the link (e.g. >>> Ethernet) which is where the majority of the errors are likely to >>> occur (if a check sum error occurs your Ethernet card will merely >>> discard it and wait for a retransmission so it will never be seen >by >>> your analyzer). Your monitor will indirectly monitor these errors >if >>> it measures throughput which will decrease as the errors increase. >I >>> would surmise that by installing and using one of the tools you >will >>> gain lots of insight and knowledge but not enough to definitively >>> choose between one network card and another. >>> Larry >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>>_________________________________________________________________ >>>>>Hotmail: Trusted email with powerful SPAM protection. >>>>>http://clk.atdmt.com/GBL/go/177141665/direct/01/ >>>>> >>>>>-- >>>>>To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org >>>>>with a subject of "unsubscribe". Trouble? Contact >listmas...@lists.d >>>>ebian.org >>>>> >>>>> >>> >>> >>> >>> -- >>> To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org >>> with a subject of "unsubscribe". Trouble? Contact >listmas...@lists.debian.org >>> >> >>_________________________________________________________________ >>Hotmail: Powerful Free email with security by Microsoft. >>http://clk.atdmt.com/GBL/go/171222986/direct/01/ -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org