riswhois: reporting total number of ris-peers

Rene Wilhelm wrote:
> 
> On Mon, 1 Aug 2005, Andrzej Adam Filip wrote:
> 
> 
>>Rene Wilhelm wrote:
>>
>>>It's an interesting suggestion, but the number is not easily extracted
>>>from the internal data structures build by riswhois server today. We have
>>>to think how the riswhois server could get statistics on all rispeers
>>>(total # of peers, number of fullfeed peers, IPv6 peers) automatically
>>>from the collected data. Once this is clear we'll know how much coding
>>>will be involved and how long it will take to implement.
>>
>>What do you think about providing "max ris-peers per IPv4|IPv6 route" hint
>>in riswhois replies? [I think it will be easier to compute]
> 
> 
> I don't quite understand what you mean with 'max ris-peers per route'
> Could you given an example?

Sorry for lack of necessary precision.

Current format of data in riswhoisdump.IPv4.gz and riswhoisdump.IPv6.gz is 
as follows:
% Format:  <origin> <tab> <prefix> <tab> <seen by #rispeers>

I would like riswhois report (somewhere in the header comments) maximum 
value of "seen by #rispeers" ("num-rispeers:" in riwhois terminology) in 
current data set.

It would make client aware about number of rispeers seeing route with the 
best "visibility".

Based on todays dumps (2005-08-01T10:03+0000) it is:
	89 for IPv4 routes
	28 for IPv6 routes

I used the following scriplet:
zcat riswhoisdump.IPv4.gz | perl -nae '
	next if /^%/;
	$MAX=$F[2] if $F[2]>$MAX;
	END {print $MAX}
'

-- 
Andrzej [en:Andrew] Adam Filip anfi at priv.onet.pl anfi at xl.wp.pl
All that is necessary for the triumph of evil is that good men do nothing
      -- Edmund Burke (1729-1797)