Security

Hi experts,

Good day to you all.

I want to ask about snmp oid number of rpm counter.

I create rpm services between 2 juniper devices.

Let's say:

A - B

A - C

A is client, B and C is server. This configuration means, I create 2 rpm services in the device A (Let's say RPM service AB and RPM service AC). I use Junos Space to see the rpm measurement from both interconnections.

Junos Space present the measurement result using snmp oid.

Here are the actual snmp oid of rpm measurement for standard deviation (jnxRpmResultsCalculatedTable) in devices A:

9.71.82.74.75.84.78.48.48.49.12.116.111.95.71.83.74.75.84.78.48.48.49.1.1

9.71.82.74.75.84.78.48.48.49.12.116.111.95.71.83.74.75.84.78.48.48.50.1.1

I noticed the difference is the last third digit, but how I know which oid indicates rpm measurement from RPM service AB and which from RPM service AC?

Thanks in advance.

Best Regards,

Martin Pakpahan

The OIDs you're getting contain the decimal values of each of the ascii characties in the probe test name.

It's not pretty.

The format for the name you're seeking is defined as "pingCtlTestName" in the rpm mib.

See /usr/share/snmp/mibs/mib-jnx-rpm.txt on your Space device for the exact definitions.

If you want to extract the name string from that OID, you have to map each of the decimal values to their corresponding ascii character and concatenate them.  

9 -> \t  (tab)

71 -> "G"

82 -> "R"

74 -> "J",

etc.

So, this oid: 9.71.82.74.75.84.78.48.48.49.12.116.111.95.71.83.74.75.84.78.48.48.49.1.1

...translates to this string:
        GRJKTN001
                 to_GSJKTN001


and this oid: 9.71.82.74.75.84.78.48.48.49.12.116.111.95.71.83.74.75.84.78.48.48.50.1.1

...translates to this string:
        GRJKTN001
                 to_GSJKTN002

I can hear you groaning from here.  😉

Here's a perl script that will help you deocode/debug:

#!/usr/bin/perl

use strict;
use warnings;

my $input = $ARGV[0];
print "input = $input\n";

my @oid = split('\.', $input);

foreach my $val (@oid) {
        print chr($val);
}
print "\n";

exit

Hi dmcpherson,

You hear me just fine. I am groaning loudly here 😄

Thanks for the tip, man. You are a lifesaver. 🙂

With this example : 1.3.6.1.4.1.2636.3.50.1.1.1.2.9.73.80.86.52.45.84.69.83.84.15.71.111.111.103.108.101.45.80.117.98.108.105.99.45.49.1

1.3.6.1.4.1.2636.3.50.1.1.1.2. = Base OID
9. Character count for the owner name
73.80.86.52.45.84.69.83.84.  Owner name (In this case « IPV4-TEST »)
15. Character count for the test name
71.111.111.103.108.101.45.80.117.98.108.105.99.45.49  test Name (In this case « Google-Public-1 »)
.1  Sample type

So, this oid: 9.71.82.74.75.84.78.48.48.49.12.116.111.95.71.83.74.75.84.78.48.48.49.1.1...translates to this string:        GRJKTN001                 to_GSJKTN001and this oid: 9.71.82.74.75.84.78.48.48.49.12.116.111.95.71.83.74.75.84.78.48.48.50.1.1...translates to this string:        GRJKTN001                 to_GSJKTN002

#!/usr/bin/perluse strict;use warnings;my $input = $ARGV[0];print "input = $input\n";my @oid = split('\.', $input);foreach my $val (@oid) {        print chr($val);}print "\n";exit

Hi,

Another way to quickly identify the associated information is to examine the XML reply.

e.g.

> show snmp mib walk jnxRpmResultsCalculatedTable | display xml

<rpc-reply xmlns:junos="http://xml.juniper.net/junos/12.1X46/junos">
    <snmp-object-information xmlns="http://xml.juniper.net/junos/12.1X46/junos-snmp">
        <snmp-object>
            <name>jnxRpmResCalcSamples.9.99.117.115.116.111.109.101.114.65.9.105.99.109.112.45.116.101.115.116.1.1</name>
            <index>
                <index-name>pingCtlOwnerIndex</index-name>
                <index-value>customerA</index-value>
            </index>
            <index>
                <index-name>pingCtlTestName</index-name>
                <index-value>icmp-test</index-value>
            </index>
            <index>
                <index-name>jnxRpmResSumCollection</index-name>
                <index-value>1</index-value>
            </index>
            <index>
                <index-name>jnxRpmResCalcSet</index-name>
                <index-value>1</index-value>
            </index>
            <object-value-type>gauge</object-value-type>
            <object-value>1</object-value>
            <oid>1.3.6.1.4.1.2636.3.50.1.3.1.2.9.99.117.115.116.111.109.101.114.65.9.105.99.109.112.45.116.101.115.116.1.1</oid>
        </snmp-object>
        <snmp-object>
        ...
        </snmp-object>
    </snmp-object-information>
    <cli>
        <banner></banner>
    </cli>
</rpc-reply>

Regards,

Andy