Re: [Devmon] Repeater table without primary column?

[Thomas K. <tk...@ne...>]

Hi Buchan,

On Mon, Dec 19, 2011 at 03:39:49PM +0100, Buchan Milne wrote:
> On Monday, 19 December 2011 12:40:51 Thomas Kähn wrote:
> > I only have the data column in this table as seen in the output below.
> > 
> > The slot/port combination can only be deduced from the last three
> > numbers in the OID.
> 
> Before I look at the MIB, from your explanation, the last three numbers should 
> be accessible in devmon by using the INDEX operator (as the index of the SNMP 
> table). If not, you aren't looking at an SNMP table.

thank you very much for the hint with the INDEX transform. I am still
running v0.3.0 which doesn't have the INDEX transform. So I didn't find
it in the documentation.

> > > > E.g. I want to monitor the PPP sessions on individual interfaces
> > > > on a Juniper E320 BRAS system.
> > > > However there is no ifName or ifIndex column in this table. Instead the
> > > > the last three numbers in the returned OID is the interface name:
> > > > 
> > > > $ snmpwalk e320bras 1.3.6.1.4.1.4874.2.2.20.1.8.8
> > > > SNMPv2-SMI::enterprises.4874.2.2.20.1.8.8.1.2.3.1.0.1 = Gauge32: 4928
> > > > SNMPv2-SMI::enterprises.4874.2.2.20.1.8.8.1.2.3.1.0.2 = Gauge32: 3232
> 
> After looking for this MIB at mibdepot.com, it seems this 
> (1.3.6.1.4.1.4874.2.2.20.1.8.8) is juniAaaSubscriberLocationSummaryTable, and 
> each entry in the table has a juniAaaSubscriberLocationSummaryLocationIndex 
> (1.3.6.1.4.1.4874.2.2.20.1.8.8.1.1) and juniAaaSubscriberLocationSummaryCount 
> (1.3.6.1.4.1.4874.2.2.20.1.8.8.1.2).
> 
> If you can't get juniAaaSubscriberLocationSummaryLocationIndex, then you 
> should use the INDEX operator on juniAaaSubscriberLocationSummaryCount.

Yes, the index column is mentioned in the MIB file. Sadly it doesn't
exist on the device:

$ snmpwalk e320bras 1.3.6.1.4.1.4874.2.2.20.1.8.8.1.1
SNMPv2-SMI::enterprises.4874.2.2.20.1.8.8.1.1 = No Such Object available on this agent at this OID

Good to know devmon has a solution to this problem :-)

Best regards
Thomas Kähn
-- 
Thomas Kähn
Technik, Network Engineering & Design; Content Delivery Platform & IP
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