Hi Sverre,
On 25.10.2012 08:50, Sverre Moe wrote:
> The file system scenario was the closest example I could think of.
> The device I am creating a MIB file for has ALOT of parameters which is
> organized in a hierarchy must like a file system. Each node in the path can
> have a few scalars(parameters), but most of them are at the end of a path (a
> subsystem).
I see, thanks for the explanation.
>
> My application running against a test system created a MIB file with almost
> 5000 scalars and aprox 500 groups.
OK.
>
> According to the SMIv2 (RFC 2578) descriptor names must be unique and
> mnemonic. Using a hash is not exactly very mnemonic.
I know. But since it seems that you yourself cannot come up with 5000 unique
and mnemonic names (at least not
programmatically/automatically) while being limited to 64 chars, a hash at
least meets the "unique" requirement.
Regards,
Heiko
>
>
> /Sverre
>
> ----- Original Message -----
>
> Fra: "Heiko Gerstung" <he...@am-anger-1.de>
> Til: net-snmp-users@lists.sourceforge.net
> Sendt: 24. oktober 2012 16:00:25
> Emne: Re: A MIB file dilemma
>
>
> On 24.10.2012 14:07, Sverre Moe wrote:
>> I have come up with the following hack for names over 64 characters. I'm not
>> sure if this hack is a very good solution.
>>
>> Truncate in the middle with the number of characters over 64 (+2) and
>> replace it with "-".
>>
>>
>> std::string tmp_string = name;
>> const int length = tmp_string.length();
>> if (length > 64) {
>>
>> const int half = length / 2; //We truncate in the middle.
>>
>> const int numberOff = (length - 64) + 2; //The number of characters to
>> truncate.
>> const std::string dash = "-";
>> tmp_string = tmp_string.replace(half, numberOff, dash);
>> }
>>
>>
> Sverre,
>
> the stuff you seem to want to do with a MIB scares the hell out of me ;-) ...
> Not sure what you want to achieve with that
> (creating an SNMP file system). However, maybe you should take the MD5 hash
> of the full path (echo $FILENAME | md5sum) and
> use it as the name of the object and (for better readability....) add a
> comment "-- this is file /etc/hosts --" or something
> similar that helps you to find out which object is which file ...
>
> Again: for all the possible things that I could come up with as a reason why
> you are doing this, I would see a better
> (non-MIB "abusing" :-)) alternative. But: what do I know :-)
>
> Regards,
> Heiko
>
> P.S.: ...
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