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Re: [nv-l] Cisco MDS 9000 traps

To: nv-l@lists.us.ibm.com
Subject: Re: [nv-l] Cisco MDS 9000 traps
From: James Shanks <jshanks@us.ibm.com>
Date: Wed, 28 Dec 2005 09:36:02 -0500
Delivery-date: Wed, 28 Dec 2005 14:36:34 +0000
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mib2trap only provides you with a starting point for defining a trap.  It
uses that simple default format, but you can always improve on that by
using information from the original MIB.

Go to the cisco-ns-mib or whatever MIB contains the TRAP-TYPE (SNMPv1) or
NOTIFICATION-TYPE (SNMPv2) statement for  this fcNameServerNotifications
trap, and find that statement..  The very next line will say VARIABLES
(SNMPv1) or OBJECTS (SNMPv2) and it will list in order what each of the MIB
variables or objects are that will be sent with this trap.          You can
then use that name and change the format  of the trap yourself to be more
meaningful.  If that's not enough, you can also search the MIB for that
name and find where that object is defined, and there will probably be a
description clause with it which will explain just what that name object

Another alternative in current code if you have loaded all those MIBs with
the web console MIB loader is to select the ones which have trap
definitions in them and run the Java loader's --mib2Trap option on them.
It  produces a different default format which identifies the trap varbinds
by name rather than by OID.  If you like that better, then you should use
it.  Remember that you can replace a trap definition with the addtrap
command as often as you like.  If there is already a definition for the
trap defined in the addtrap command, it will be replaced.

James Shanks
Level 3 Support  for Tivoli NetView for UNIX and Windows
Tivoli Software / IBM Software Group

             "Brinkworth, Rob"                                             
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                                       "Shirley, Tony"                     
                                       <tony.shirley@landg.com>, "Skates,  
             12/28/2005 05:35          Andy" <andy.skates@landg.com>       
             AM                                                    Subject 
                                       [nv-l] Cisco MDS 9000 traps         
             Please respond to                                             

Hi All,

I'm trying to get NetView (7.1.4 FP3 on AIX 5.2) to manage Cisco MDS SAN
switches, in this example a Cisco 9216. I've loaded nearly 100 SAN-related
Cisco SNMPv2 MIB files with the Web Console MIB Loader and mib2trap. Here's
an edited highlight from our trapd.log file showing an example of an
incoming trap:

A fcNameServerNotifications 6 3 3 args: [1]
cisco.ciscoMgmt. (OctetString):.....
A [2] cisco.CiscoMgmt. (Integer): 2
A [3] snmpV2.snmpModules. (IpAddress): ......

In one way this all seems correct. The main trap is correctly getting
resolved to "fcNameServerNotifications" by virtue of the notification
definitions in cisco-ns-mib. However, there are no notification definitions
in cisco-ns-mib to allow the resolution of "..". There are
relevant OBJECT-TYPE entries in the MIB file, but that's no help as they
don't make it to the addtrap commands generated by mib2trap.

My problem is that the information is useless as it stands. If a SAN
specialist was called out-of-hours and passed the information above, it
would be of no help. No other Cisco MIBs appear to mention ciscoMgmt.293.
seems as if the MIB file has major shortcomings in being of little or no
in allowing the handling of traps by NMSs, but this seems a bit surprising
for a major player. It strikes me as much more likely that I'm missing a
fundamental point here!

I tried running the SNMPv1 version of the MIB file (cisco-ns-mib-v1smi)
through mib2trap but it doesn't appear to be any better.

Am I missing some crucial piece of the jigsaw here? Any advice gratefully


Rob Brinkworth,
Systems Management Integration Architect.
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