RE: overwrite standard mib2/interfaces

> From: [email protected] 
> [mailto:[email protected]] On 
> Behalf Of Masoud Fatollahy
> Sent: Thursday, January 31, 2008 7:24 AM

> We are planning to find the best possible way to register our 
> ports as interface in mib2/interfaces(if-mib/ifTable) table 
> on net-snmp-5.4.1. since these ports are not seen by the 
> linux system then we should include them to the interface 
> list ourselves, but the idea is to keep net-snmp as it is and 
> do not modify anything(modify as little as possible). in 
> order to do this we have decided to use a sub-agent and 
> AgentX to talk to net-snamp agent. the question is:
> How can we do this to achieve our goal? 
> A answer which we are looking at right now is that remove 
> registration of MIB2/Interfaces(if-mib/ifTable) and use our 
> subagent to register all interface mibs and callbacks functions. 
> Since you are the experties, I want to know your idea about this?

	There is no need to clobber the entire ifTable.  Simply register a row for each port.  You'll need to register each object in each row individually, which is a bit of a pain, but that's the only real problem.  I don't know if there are helpers for this.  I would recommend using very large numbers for your ifIndex to keep clear of those generated by the MIB module.

	Hopefully, the ifTable implementation has a way to cooperatively add your own rows, but I've never examined it.  Anyone?


	Thanks,

Mike

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