[Coral-dev] Incorrect masklen.

[Ryan Koga]

On 2/4/11 10:42 PM, Sharad Chandra wrote:

> I installed coral-3.8.6 and noticed incorrect masklen in generated file
> from "parse_bgp_dump -g".
>
> <skip>
> 12.120.214.0    24      17224
> 12.127.255.255  3212    7018<<<-----------------here
> 12.128.0.0      9       7018
> <skip>
>
> I tried to debug the script and figure out that It is happening because of
> separator missing between "Network" and "Next Hop" in database
> http://archive.routeviews.org/oix-route-views/2011.02/oix-full-snapshot-latest.dat.bz2
>
> Note in 2nd row, below
>
> *  12.120.214.0/24  95.140.80.254            0      0      0 31500 3549 7018
> 17224 i
> *  12.127.255.255/3212.0.1.63                0      0      0 7018 i<----here
> *  12.128.0.0/9     62.72.136.2              0      0      0 5413 1299 7018 i
>
> and hence subroutine ParseBGPDump::parse_table_line is not able to
> successfully extract masklen.

You are absolutely correct; this is a bug we noticed when RouteViews 
made some changes to their output format.  The attached patch to 
ParseBGPDump.pm will hopefully fix the problem.  Let us know if it helps 
(or more importantly, if it doesn't).
-- 
rkoga at caida.org (Ryan Koga)
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