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Subject: [Bug 202708] netstat(1) output depends on options order
Date: Fri, 28 Aug 2015 09:31:53 +0000
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=202708

            Bug ID: 202708
           Summary: netstat(1) output depends on options order
           Product: Base System
           Version: 10.1-STABLE
          Hardware: amd64
                OS: Any
            Status: New
          Severity: Affects Many People
          Priority: ---
         Component: bin
          Assignee: freebsd-bugs@FreeBSD.org
          Reporter: demon@FreeBSD.org

I get different numbers in netstat(1) output when using different order of
options:

# netstat -I em0 -i 1
            input           net0           output
   packets  errs idrops      bytes    packets  errs      bytes colls
    156271     0     0   17092074     154604     0   20191073     0
    157305     0     0   17249790     155758     0   20542298     0
    157213     0     0   17161068     155536     0   20388553     0
    156019     0     0   16867807     154341     0   19934722     0

At the same time:
# netstat  -i 1 -I em0
            input        (Total)           output
   packets  errs idrops      bytes    packets  errs      bytes colls
    508079     0     0   54256010     506328     0   57473424     0
    509058     0     0   53768771     507231     0   56816927     0
    508992     0     0   54059333     507435     0   57132934     0

I suppose that in second form it silently ignores -I em0 and shows statistics
including loopback.

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