juniper and dynamic snmp indexes

Hello,

we have a Juniper EX-4200 optical switch and it has some interesting 
"feature" ;)

When we unplug SFP module, switch removes its OIDs from SNMP. When we 
plug SFP module back, switch creates all its OIDs again, but with 
different "index" (I mean the latest number in OID.).

For example: when I do "snmpwalk", there is:

IF-MIB::ifDescr.775 = STRING: ge-0/0/1
IF-MIB::ifOperStatus.775 = .....
IF-MIB::ifInOctets.775 = .....
etc...

then we "replug" the SFP module, and there is:

IF-MIB::ifDescr.1824 = STRING: ge-0/0/1
IF-MIB::ifOperStatus.1824 = .....
IF-MIB::ifInOctets.1824 = .....
etc...

So we always have to modify OIDs in scripts we are using for 
monitoring/graphing ports. We were talking to some other companies using 
Junipers as well. They all tell us that they know about this behaviour, 
some of them even issued a trouble ticket (even we did), but nothing has 
changed so far.

So we have done some extensive googling and found a few posts, where 
some people say, that querying SNMP using static OIDs is no more "sexy" 
and there are new ways to request "dynamic" OIDs, and so on...

But we cannot find any example.

Is there really such a way? For example something like:

snmpget .... ifInOctets.(of interface with ifDescr='ge-0/0/1')

Thank you very much for your time.
-Jan



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