Re: About SQUID and SNMP TRAPS , and snmp in general

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I certainly can't argue with what Henrik says. I was really hoping for
an AgentX implementation, though. (In fact, i was wanting to be the
developer who implements it, but then i had a child, and, well, nowadays
i'm lucky to have time enough to read my e-mail.) My biggest reason for
that was SNMPv3 support. I don't believe in SNMP before version 3, and
hooking in to Net-SMNP via AgentX is a quick and easy way to get SNMPv3
into Squid (because Squid doesn't have to do the work).

I just wanted to add that quick thought to the discussion.

                -&

Henrik Nordstrom wrote:
> On Sat, 9 Jul 2005, Henrik Nordstrom wrote:
>
>> There is two approaches, either resurrect the now deleted trap snmp
>> code in the old simplminded snmp library used (and distributed) by
>> Squid, or do it more proper and replace the SNMP agent glue in Squid
>> with a new one using the more up to date net-snmp library API
>> <url:http://net-snmp.sourceforge.net/>, making Squid a SMUX or AgentX
>> sub-agent to an existing system SNMP agent supporting either method.
>
>
> A quick inspection of the net-snmp agent API indicates it is not
> immediately suitable to be called from inside Squid. This due to a
> design heavily centered around select() semantics and fd_set processing.
>
> It may be possible to build glue around, but I have doubts in how the
> library uses the fd_set:s. Any library having static/local fd_set
> instances is not useable from Squid (filedescriptor limitation problem).
>
> So for now I think it would be better to simply resurrect/reimplement
> the TRAP PDU sending code. Since we are only looking at sending traps
> there is not much danger or maintenance headache.
>
> Regards
> Henrik
>

- --
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Received on Sun Jul 10 2005 - 03:12:34 MDT