Article View: comp.dcom.sys.cisco
Article #609Re: Interfaces statics don't jibe with Sniffer's
From: oberman
Date: Sat, 01 Sep 1990 20:07
Date: Sat, 01 Sep 1990 20:07
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1649 bytes
In article <25514@boulder.Colorado.EDU>, pleticha@mpad.span.nasa.gov (Dennis Pleticha/MDSSC-ESD @ (713) 283-4207) writes: > > I've noticed that the interfaces statics from our cisco don't correlate well > with those of the Network General Sniffer hanging off the same interface. > In particulare collisions, framing errors, runts, and CRC errors reported by > the cisco router is orders of magnitude greater than those of the Sniffer! > Who do I believe and/or should I be concerned? My experience with the Sniffer is that it is a good protocol analyzer, but a so-so network analyzer. I also use an HP analyzer and it shows far more errors and such than the Sniffer. Because the Sniffer uses a more or less standard interface, it can't seem to see some types of errors. The HP has a fully custom interface and seem to catch EVERYTHING. (But it's not much of a protocol analyzer.) I suspect that the counts on the cisco are correct. R. Kevin Oberman Lawrence Livermore National Laboratory Internet: oberman@icdc.llnl.gov (415) 422-6955 Disclaimer: Don't take this too seriously. I just like to improve my typing and probably don't really know anything useful about anything.
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arc1-ca.pugleaf.net!utzoo!attcan!utgpu!news-server.csri.toronto.edu!mailrus!iuvax!cica!sol.ctr.columbia.edu!lll-winken!rogue.llnl.gov!obermanReferences:
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Path: arc1-ca.pugleaf.net!utzoo!attcan!utgpu!news-server.csri.toronto.edu!mailrus!iuvax!cica!sol.ctr.columbia.edu!lll-winken!rogue.llnl.gov!oberman From: oberman@rogue.llnl.gov Newsgroups: comp.dcom.sys.cisco Subject: Re: Interfaces statics don't jibe with Sniffer's Message-ID: <1990Sep1.130728.1@rogue.llnl.gov> Date: 1 Sep 90 20:07:28 GMT References: <25514@boulder.Colorado.EDU> Sender: usenet@lll-winken.LLNL.GOV Lines: 24