LARTC - Nov 2002 - tcng version 9c

... is on SourceForge, http://tcng.sourceforge.net/#src

The increasingly more mis-named if_u32 can now also build 
classifiers using the meta fields meta_nfmark and meta_tc_index.
(Yes, finally !)

There was also a rather serious bug in the generation of 
multi-phase policers (i.e. what if_u32 uses for srTCM, trTCM,
and similar), which caused rules to be emitted in the wrong
order. Phases are now handled implicitly in the action and match
dumping functions, which use a stack of rules leading to the 
current decision. While this change doesn''t quite make if_u32
look pretty, it''s at least a bit less obscure now.

Another bug that has evaded detection for a surprisingly long
time was that invalid digits (i.e. 8 or 9) in octal numbers
caused tcc and tcsim to silently ignore the rest of the number.

There were some more minor corrections and improvements. The
complete list of changes is below.

- Werner

----------------------------------- CHANGES -----------------------------------

Version 9c (14-NOV-2002)
------------------------

- if_u32 badly mis-ordered rules with multi-phase policers (tests/u32pol)
- updated tests/arith, tests/egress, tests/intro, tests/selpath,
  tests/selpathcbq, tests/selpathdup, tests/selpathgred, tests/tcng-2n, and
  tests/tcng-7o to use unified match format introduced with above fix
- tcc and tcsim silently ignored invalid digits in octal numbers
  (tests/tcng-9c)
- tcsim did not report EOF in tcng section as an error (tests/tcng-9c)
- updated tests/typerr and tests/varhash accordingly
- if_u32.c can now generate fw and tcindex classifiers from meta-fields
  (tests/metau32)
- for consistency, dsmark can now also default parameter "value" from
qdisc
  (tests/u32pol)
- tests/tcstimstp used packets that caused SFQ to segfault under efence
- scripts/runtests.sh: also "comtc" now filters efence blabber
- added known range check problem to TODO

-- 
  _________________________________________________________________________
 / Werner Almesberger, Buenos Aires, Argentina         wa@almesberger.net /
/_http://www.almesberger.net/____________________________________________/
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Hi All,

I am running some tests in which I have to bring down
my interface down as soon as I tear down the cable.
Cable tearing results only in the link failure(as link
light went off), but it doens''t bring my interface
down. 

Is there a way to bring the interface down as soon as
my link fails, probably using ''ip link'' or ''ip
monitor''. Does anyone know about it.

If there is some hardware monitering tool that can
detect the link failure, probably I can use this to
write a small program which will bring down the
interface as soon as I link failure is detected 

Thanks,
NItin 




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On Tue, 19 Nov 2002, nitin panjwani wrote:
> Hi All,
>
> I am running some tests in which I have to bring down
> my interface down as soon as I tear down the cable.
> Cable tearing results only in the link failure(as link
> light went off), but it doens''t bring my interface
> down.
>
> Is there a way to bring the interface down as soon as
> my link fails, probably using ''ip link'' or ''ip
> monitor''. Does anyone know about it.
Monitor using mii-tool.
> If there is some hardware monitering tool that can
> detect the link failure, probably I can use this to
> write a small program which will bring down the
> interface as soon as I link failure is detected
Well, you *could* theoretically write a kernel module that would monitor
link status and call back to userland... that would result in the
quickest teardown of the link.

Doei, Arthur.

-- 
  /\    / |      arthurvl@sci.kun.nl      | Work like you don''t need
the money
 /__\  /  | A friend is someone with whom | Love like you have never been hurt
/    \/__ | you can dare to be yourself   | Dance like there''s nobody
watching

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