Usage of mib2c.old-api.conf

Vachan

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Mar 9, 2004, 1:41:07 AM3/9/04

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Hi,
Can the Mib2c Configuaration file "mib2c.old-api.conf" be used for
Net-SNMP5.X code. The mib2c.conf file says it generates code that is
compatible with ucd-snmp4.x line of code.

Would there be any performance or any other issues if "mib2c.old-api.conf"
is used for Net-SNMP5.X code?

Thanx,
Vachan

"The only place success comes before work is in the dictionary."

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Hi,
     Can the Mib2c =
Configuaration file "mib2c.old-api.conf" be used for =
Net-SNMP5.X code. The mib2c.conf file says it generates code that is =
compatible with ucd-snmp4.x line of code.     =

Would there be any performance or any =
other issues if "mib2c.old-api.conf" is used for Net-SNMP5.X =
code?

Thanx,
 Vachan

"The only =
place success comes before work is in the dictionary."

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Dave Shield

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Mar 9, 2004, 4:57:06 AM3/9/04

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> Can the Mib2c Configuaration file "mib2c.old-api.conf" be used for
> Net-SNMP5.X code.

Yes.
Many of the MIB modules shipped with the v5 agent still use the v4 API.
The v5 agent includes a backwards compatability mode.

> Would there be any performance or any other issues if "mib2c.old-api.conf"
> is used for Net-SNMP5.X code?

There will be a slight performace hit, yes.
I'm not aware of any measurements to determine how much of a
penalty there would be - probably not great in comparison with
the overall request handling (including network delays).
But it would be less efficient that using the native v5 API, yes.

Dave

PS: Please - no HTML mail. Thanks

Vachan

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Mar 9, 2004, 6:07:36 AM3/9/04

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Hi Dave,
Thanks for the information.
Are there any examples of MIB implementation for "mib2c.iterate.conf"
method?
The agent mib group "vacm context" is implemented (vacm_context.c) using
this method but is not elaborate to understand(since it has only one OID). I
checked in the ../agent/mibgroup/examples directory, but I was not able to
find examples implemented using only "mib2c.iterate.conf" method. There was
this netSnmpHostsTable implemented using the mib2c.iterate_access.conf.

Please let me know of any examples implemented using "mib2c.iterate.conf"
method only.

Thanx,
Vachan

-----Original Message-----
From: Dave Shield [mailto:D.T.S...@csc.liv.ac.uk]
Sent: Tuesday, March 09, 2004 3:15 PM
To: Vachan
Cc: net-snm...@lists.sourceforge.net
Subject: Re: Usage of mib2c.old-api.conf

> Can the Mib2c Configuaration file "mib2c.old-api.conf" be used for
> Net-SNMP5.X code.

Yes.
Many of the MIB modules shipped with the v5 agent still use the v4 API.
The v5 agent includes a backwards compatability mode.

> Would there be any performance or any other issues if "mib2c.old-api.conf"
> is used for Net-SNMP5.X code?

There will be a slight performace hit, yes.
I'm not aware of any measurements to determine how much of a
penalty there would be - probably not great in comparison with
the overall request handling (including network delays).
But it would be less efficient that using the native v5 API, yes.

Dave

PS: Please - no HTML mail. Thanks

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Hi Dave,
        Thanks for the =
information.
 Are there any examples of MIB implementation for =
"mib2c.iterate.conf" method?
 The agent mib group "vacm context" is =
implemented (vacm_context.c) using this method but is not elaborate to =
understand(since it has only one OID). I checked in the =
../agent/mibgroup/examples directory, but I was not able to find =
examples implemented using only "mib2c.iterate.conf" method. =
There was this netSnmpHostsTable implemented using the =
mib2c.iterate_access.conf.

Please let me know of any examples implemented using =
"mib2c.iterate.conf" method only.

Thanx,
 Vachan

-----Original Message-----
 From: Dave Shield [<A =
HREF=3D"mailto:D.T.S...@csc.liv.ac.uk">mailto:D.T.S...@csc.liv.ac.uk=
</A>]
 Sent: Tuesday, March 09, 2004 3:15 PM
 To: Vachan
 Cc: net-snm...@lists.sourceforge.net
 Subject: Re: Usage of mib2c.old-api.conf

>     Can the Mib2c =
Configuaration file "mib2c.old-api.conf" be used for
 > Net-SNMP5.X code.

Yes.
 Many of the MIB modules shipped with the v5 agent =
still use the v4 API.
 The v5 agent includes a backwards compatability =
mode.

> Would there be any performance or any other =
issues if "mib2c.old-api.conf"
 > is used for Net-SNMP5.X code?

There will be a slight performace hit, yes.
 I'm not aware of any measurements to determine how =
much of a
 penalty there would be - probably not great in =
comparison with 
 the overall request handling (including network =
delays).
 But it would be less efficient that using the native =
v5 API, yes.

Dave

PS: Please - no HTML mail.  Thanks

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Dave Shield

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Mar 9, 2004, 6:37:14 AM3/9/04

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> Are there any examples of MIB implementation for "mib2c.iterate.conf"
> method?

$ cd net-snmp-5.1/agent/mibgroup/
/users/tech/daves/SNMP/net-snmp-5.1/agent/mibgroup
$ grep -l netsnmp_iterator */*.c
agent/nsCache.c
agent/nsDebug.c
agent/nsLogging.c
agent/nsModuleTable.c
agent/nsTransactionTable.c
examples/netSnmpHostsTable_access.c
examples/netSnmpHostsTable.c
mibII/ipCidrRouteTable.c
mibII/tcpTable.c
mibII/udpTable.c
mibII/vacm_context.c

Dave