[mrtg] Re: Monitor Frame Relay availabilty & accuracy

[Seiya Lin]

Hi Paul,

I could do a little maths in my performance script-thanks to David 
Sawyer. It's working fine.

Target[205]: 
(((frCircuitReceivedFrames.183.205&frCircuitSentFrames.183.205:public@
127.0.0.1 -  
1.3.6.1.4.1.9.9.49.1.2.1.1.1.183.205&1.3.6.1.4.1.9.9.49.1.2.1.1.2.183.
205:public at 127.0.0.1) / 
frCircuitReceivedFrames.183.205&frCircuitSentFrames.183.205:public at 127
.0.01) * 100)

However, what I don't get is that the OID to measure availability & 
accuracy -- according to the formula given below from Cisco Press 
book -- the OID exist but when I tried to poll it, it returns NULL 
value.
I wonder if there are any other formulas to measure availability and 
accuracy? Does anyone know?

Regards
Seiya Lin


---- Begin Original Message ----

From: "Paul C. Williamson" <pwilliamson at mandtbank.com>
Sent: Wed, 30 Jan 2002 23:12:52 -0500
To: <cloudd at asia1.com>, <mrtg at list.ee.ethz.ch>
Subject: [mrtg] Re: Monitor Frame Relay availabilty & accuracy



Are you trying the math on those OIDs in the target?

Something like:

Target[blah]: OID1&OID2 * 100 / OID3&OID4

?  That won't work.  You almost need to write an 
external script any interface it back in to MRTG.

Paul

>>> "Seiya Lin" <cloudd at asia1.com> 01/30/02 20:19 PM >>>

Hi Paul,

Minimum is 11.3 - 12.0.
I have no problem monitoring the usage and link performance, CPU and 
Memory usage. I can't monitor the accuracy and availability though.
When I double-checked with GetIf program, all variables in the 
formulas below return no value.

Thanks
Seiya Lin

---- Begin Original Message ----

From: "Paul C. Williamson" <pwilliamson at mandtbank.com>
Sent: Wed, 30 Jan 2002 10:07:53 -0500
To: <cloudd at asia1.com>, <mrtg at list.ee.ethz.ch>
Subject: [mrtg] Re: Monitor Frame Relay availabilty & accuracy



What version of IOS are you running?
I can monitor my F/R interfaces with no problems at all.

Paul

>>> "Seiya Lin" <cloudd at asia1.com> 01/29/02 10:38PM >>>

Hi,

does anyone here know how to monitor network availability and 
accuracy for Frame Relay for Cisco routers?

Below is the formula I got from Cisco Press book: Performance & Fault 
Management
Accuracy: ifInErrors *100 / (ifinUCastPkts + ifInNUCastPkts)
Availability: MTBF / (MTBF + MTTF)

For Accuracy, the OID is only for serial interface. It doesn't return 
any value for my frame relay ports.

Thanks for your help
Seiya Lin

---- End Original Message ----



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