snmpget and compound MIB variables

Hello All!

Juniper Networks provides handy MIBs for monitoring Source/Destination
Class Usage: JUNIPER-SCU-MIB and JUNIPER-DCU-MIB.
After issuing snmpwalk for Juniper router I got:

# snmpwalk -v2c -c public -m+JUNIPER-SCU-MIB -M+../mrtg/MIBs/Juniper/9.5 br1-gdr jnxScuStats
JUNIPER-SCU-MIB::jnxScuStatsPackets.208.ipv4."from-UAIX" = Counter64: 3874095450
JUNIPER-SCU-MIB::jnxScuStatsPackets.208.ipv4."from-World" = Counter64: 6761075110
JUNIPER-SCU-MIB::jnxScuStatsBytes.208.ipv4."from-UAIX" = Counter64: 323892864678
JUNIPER-SCU-MIB::jnxScuStatsBytes.208.ipv4."from-World" = Counter64: 554254412101
JUNIPER-SCU-MIB::jnxScuStatsClName.208.ipv4."from-UAIX" = STRING: from-UAIX
JUNIPER-SCU-MIB::jnxScuStatsClName.208.ipv4."from-World" = STRING: from-World

snmpget works fine also, for example when I want to get only one variable:
# snmpget -v2c -c public -m+JUNIPER-SCU-MIB -M+../mrtg/MIBs/Juniper/9.5 br1-gdr jnxScuStatsBytes.208.ipv4.\"from-World\"
JUNIPER-SCU-MIB::jnxScuStatsBytes.208.ipv4."from-World" = Counter64: 554258204428

The main problem is how to get the same behavior with Perl interface?
I've tried the following code:



#!/usr/bin/perl -w
use strict;
use SNMP;

$ENV{'MIBDIRS'} = '/usr/local/share/snmp/mibs:/data/noc/mrtg/MIBs/Juniper/9.5';
$ENV{'MIBS'} = 'JUNIPER-SCU-MIB';

my $sess = new SNMP::Session(DestHost => 'br1-gdr', Community => 'public', Version => '2c' );
print $sess->get('jnxScuStatsBytes.208.ipv4."from-World"'), "\n";



But script returns error NOSUCHINSTANCE.
Debugging shows that jnxScuStatsBytes.208.ipv4."from-World" is not
converted to OID correctly:
# ./test.pl
trace: netsnmp_ds_set_boolean(): default_store.c, 208:
netsnmp_ds_set_boolean: Setting LIB:4 = 0/False
trace: _snmp_build(): snmp_api.c, 2937:
snmp_send: Building SNMPv2 message...
trace: _snmp_build(): snmp_api.c, 2940:
dumph_send: GET
trace: snmp_pdu_realloc_rbuild(): snmp_api.c, 3308:
snmp_pdu_realloc_rbuild: starting
trace: snmp_pdu_realloc_rbuild(): snmp_api.c, 3323:
dumph_send:   VarBind
trace: snmp_realloc_rbuild_var_op(): snmp.c, 341:
dumph_send:     Value
dumpx_send:      05 00
dumpv_send:        NULL
trace: snmp_realloc_rbuild_var_op(): snmp.c, 442:
dumph_send:     Name
dumpx_send:      06 11 2B 06 01 04 01 94 4C 03 10 01 01 01 05 81
50 00 00
dumpv_send:        ObjID: jnxScuStatsBytes.208.0.0
                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[...]

Any help is kindly appreciated! Thanks.

-- 
MINO-RIPE

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