Use of uninitialized value within @oid_perf_inoct

[mhoogveld]

Checking if an if is up results in the warning "Use of uninitialized value within @oid_perf_inoct" on a Cisco 3750.
As requested on the check_netint.pl plugin page at exchange.nagios.org in a comment, here's the output from the latest version from the dev branch with the -v option:

$ ./check_netint-2.4b5.pl -H 10.1.1.1 -C public --name=GigabitEthernet1/0/10 -v
Alarm at 15 + 5
Filter : GigabitEthernet1/0/10
SNMP v1 login
Doing snmp get_table request on Interfaces Description Table OID: 1.3.6.1.2.1.2.2.1.2
 OID: 1.3.6.1.2.1.2.2.1.2.26 Clean Desc: 'Vlan26' Raw Desc: Vlan26
 OID: 1.3.6.1.2.1.2.2.1.2.10123 Clean Desc: 'GigabitEthernet1/0/23' Raw Desc: GigabitEthernet1/0/23
 OID: 1.3.6.1.2.1.2.2.1.2.10108 Clean Desc: 'GigabitEthernet1/0/8' Raw Desc: GigabitEthernet1/0/8
 OID: 1.3.6.1.2.1.2.2.1.2.28 Clean Desc: 'Vlan28' Raw Desc: Vlan28
 OID: 1.3.6.1.2.1.2.2.1.2.10126 Clean Desc: 'GigabitEthernet1/0/26' Raw Desc: GigabitEthernet1/0/26
 OID: 1.3.6.1.2.1.2.2.1.2.5003 Clean Desc: 'Port-channel3' Raw Desc: Port-channel3
 OID: 1.3.6.1.2.1.2.2.1.2.5179 Clean Desc: 'StackPort1' Raw Desc: StackPort1
 OID: 1.3.6.1.2.1.2.2.1.2.5004 Clean Desc: 'Port-channel4' Raw Desc: Port-channel4
 OID: 1.3.6.1.2.1.2.2.1.2.5001 Clean Desc: 'Port-channel1' Raw Desc: Port-channel1
 OID: 1.3.6.1.2.1.2.2.1.2.10117 Clean Desc: 'GigabitEthernet1/0/17' Raw Desc: GigabitEthernet1/0/17
 OID: 1.3.6.1.2.1.2.2.1.2.22 Clean Desc: 'Vlan22' Raw Desc: Vlan22
 OID: 1.3.6.1.2.1.2.2.1.2.10127 Clean Desc: 'GigabitEthernet1/0/27' Raw Desc: GigabitEthernet1/0/27
 OID: 1.3.6.1.2.1.2.2.1.2.23 Clean Desc: 'Vlan23' Raw Desc: Vlan23
 OID: 1.3.6.1.2.1.2.2.1.2.10107 Clean Desc: 'GigabitEthernet1/0/7' Raw Desc: GigabitEthernet1/0/7
 OID: 1.3.6.1.2.1.2.2.1.2.10104 Clean Desc: 'GigabitEthernet1/0/4' Raw Desc: GigabitEthernet1/0/4
 OID: 1.3.6.1.2.1.2.2.1.2.10119 Clean Desc: 'GigabitEthernet1/0/19' Raw Desc: GigabitEthernet1/0/19
 OID: 1.3.6.1.2.1.2.2.1.2.10113 Clean Desc: 'GigabitEthernet1/0/13' Raw Desc: GigabitEthernet1/0/13
 OID: 1.3.6.1.2.1.2.2.1.2.30 Clean Desc: 'Vlan30' Raw Desc: Vlan30
 OID: 1.3.6.1.2.1.2.2.1.2.10106 Clean Desc: 'GigabitEthernet1/0/6' Raw Desc: GigabitEthernet1/0/6
 OID: 1.3.6.1.2.1.2.2.1.2.254 Clean Desc: 'Vlan254' Raw Desc: Vlan254
 OID: 1.3.6.1.2.1.2.2.1.2.10120 Clean Desc: 'GigabitEthernet1/0/20' Raw Desc: GigabitEthernet1/0/20
 OID: 1.3.6.1.2.1.2.2.1.2.10121 Clean Desc: 'GigabitEthernet1/0/21' Raw Desc: GigabitEthernet1/0/21
 OID: 1.3.6.1.2.1.2.2.1.2.10115 Clean Desc: 'GigabitEthernet1/0/15' Raw Desc: GigabitEthernet1/0/15
 OID: 1.3.6.1.2.1.2.2.1.2.10111 Clean Desc: 'GigabitEthernet1/0/11' Raw Desc: GigabitEthernet1/0/11
 OID: 1.3.6.1.2.1.2.2.1.2.1 Clean Desc: 'Vlan1' Raw Desc: Vlan1
 OID: 1.3.6.1.2.1.2.2.1.2.10103 Clean Desc: 'GigabitEthernet1/0/3' Raw Desc: GigabitEthernet1/0/3
 OID: 1.3.6.1.2.1.2.2.1.2.5181 Clean Desc: 'StackSub-St1-2' Raw Desc: StackSub-St1-2
 OID: 1.3.6.1.2.1.2.2.1.2.14501 Clean Desc: 'Null0' Raw Desc: Null0
 OID: 1.3.6.1.2.1.2.2.1.2.20 Clean Desc: 'Vlan20' Raw Desc: Vlan20
 OID: 1.3.6.1.2.1.2.2.1.2.5002 Clean Desc: 'Port-channel2' Raw Desc: Port-channel2
 OID: 1.3.6.1.2.1.2.2.1.2.10101 Clean Desc: 'GigabitEthernet1/0/1' Raw Desc: GigabitEthernet1/0/1
 OID: 1.3.6.1.2.1.2.2.1.2.5005 Clean Desc: 'Port-channel5' Raw Desc: Port-channel5
 OID: 1.3.6.1.2.1.2.2.1.2.29 Clean Desc: 'Vlan29' Raw Desc: Vlan29
 OID: 1.3.6.1.2.1.2.2.1.2.10128 Clean Desc: 'GigabitEthernet1/0/28' Raw Desc: GigabitEthernet1/0/28
 OID: 1.3.6.1.2.1.2.2.1.2.10118 Clean Desc: 'GigabitEthernet1/0/18' Raw Desc: GigabitEthernet1/0/18
 OID: 1.3.6.1.2.1.2.2.1.2.223 Clean Desc: 'Vlan223' Raw Desc: Vlan223
 OID: 1.3.6.1.2.1.2.2.1.2.25 Clean Desc: 'Vlan25' Raw Desc: Vlan25
 OID: 1.3.6.1.2.1.2.2.1.2.10116 Clean Desc: 'GigabitEthernet1/0/16' Raw Desc: GigabitEthernet1/0/16
 OID: 1.3.6.1.2.1.2.2.1.2.10109 Clean Desc: 'GigabitEthernet1/0/9' Raw Desc: GigabitEthernet1/0/9
 OID: 1.3.6.1.2.1.2.2.1.2.10124 Clean Desc: 'GigabitEthernet1/0/24' Raw Desc: GigabitEthernet1/0/24
 OID: 1.3.6.1.2.1.2.2.1.2.10112 Clean Desc: 'GigabitEthernet1/0/12' Raw Desc: GigabitEthernet1/0/12
 OID: 1.3.6.1.2.1.2.2.1.2.10102 Clean Desc: 'GigabitEthernet1/0/2' Raw Desc: GigabitEthernet1/0/2
 OID: 1.3.6.1.2.1.2.2.1.2.10122 Clean Desc: 'GigabitEthernet1/0/22' Raw Desc: GigabitEthernet1/0/22
 OID: 1.3.6.1.2.1.2.2.1.2.27 Clean Desc: 'Vlan27' Raw Desc: Vlan27
 OID: 1.3.6.1.2.1.2.2.1.2.21 Clean Desc: 'Vlan21' Raw Desc: Vlan21
 OID: 1.3.6.1.2.1.2.2.1.2.24 Clean Desc: 'Vlan24' Raw Desc: Vlan24
 OID: 1.3.6.1.2.1.2.2.1.2.5180 Clean Desc: 'StackSub-St1-1' Raw Desc: StackSub-St1-1
 OID: 1.3.6.1.2.1.2.2.1.2.10110 Clean Desc: 'GigabitEthernet1/0/10' Raw Desc: GigabitEthernet1/0/10
 OID: 1.3.6.1.2.1.2.2.1.2.10125 Clean Desc: 'GigabitEthernet1/0/25' Raw Desc: GigabitEthernet1/0/25
 OID: 1.3.6.1.2.1.2.2.1.2.10105 Clean Desc: 'GigabitEthernet1/0/5' Raw Desc: GigabitEthernet1/0/5
 OID: 1.3.6.1.2.1.2.2.1.2.10114 Clean Desc: 'GigabitEthernet1/0/14' Raw Desc: GigabitEthernet1/0/14
Name : GigabitEthernet1/0/10, Index : 10110
Doing snmp request on status table OIDs: 1.3.6.1.2.1.2.2.1.8.10110
Finished SNMP request. Result contains 1 entries:
 1.3.6.1.2.1.2.2.1.8.10110 = 1
Use of uninitialized value within @oid_perf_inoct in hash element at ./check_netint-2.4b5.pl line 2232.
GigabitEthernet1/0/10:UP (1 UP): OK
$