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Re: [nv-l] Wireless Network Management and cisco mibs

To: nv-l@lists.us.ibm.com
Subject: Re: [nv-l] Wireless Network Management and cisco mibs
From: ray.smith@clorox.com
Date: Thu, 18 Mar 2004 13:22:47 -0800
Delivery-date: Thu, 18 Mar 2004 21:41:33 +0000
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James,
I may have been diving into this in the wrong direction. I am sitting here with our TEC guru and we are looking at the traps that are created by the wlse.  I responded to an email for CiscoTAC to help explain the different arguments the wlse appliance generates.  But here is what we are looking and hoping to identify one or more of the 7 arguments in the trap as unique for the dup detect TEC Rules.  The following is captured from wtdumprl on the TEC server.
===========================
TEC_ITS_WireLess;source=nvserverd;sub_source=A;origin=x.x.64.155;hostname="caplewlse.clorox.com";adapter_host=x.x.64.81;category=1;date="03/18/04 11:47:05 AM";severity=WARNING;status=OPEN;msg="cderMIBNotifPrefix 6 1 7 args:  [1] cderExceptionEntry.cderExcepId.14619 (OctetString): 37  [2] cderExceptionEntry.cderExcepHostAddressType.14619 (Integer): 1  [3] cderExceptionEntry.cderExcepHostAddress.14619 (OctetString): x.x.122.14  [4] cderExcepPriorityDescription.14619 (OctetString): OK  [5] cderExc
ptionEntry.cderExcepTime.14619 (Ticks): 846701154  [6] cderExceptionEntry.cderExcepData.14619 (OctetString): Fau
ltId 37 DeviceId 254 DeviceIP x.x.122.14 DeviceName x.x.122.14 MO RF Port awc0 Change Packet Error is in
 OK state (0%) ChangeSeverity OK StateChange PacketErrors is OK AlarmState Cleared OverallSeverity OK DeviceType
 AccessPoint  [7] cderExceptionEntry.cderExcepReportedBy.14619 (OctetString): FaultNotifier@CAPLEWLSE.clorox.com
 ";nv_enterprise=cderMIBNotifPrefix;nv_generic=6;nv_specific=1;nv_var1="37";nv_var2=1;nv_var3="x.x.122.14";n
v_var4="OK";nv_var5=846701154;nv_var6="FaultId 37
DeviceId 254
DeviceIP x.x.122.14
DeviceName x.x.122.14
MO RF Port awc0
Change Packet Error is in OK state (0%)
ChangeSeverity OK
StateChange PacketErrors is OK
AlarmState Cleared
OverallSeverity OK
DeviceType AccessPoint
";nv_var7="FaultNotifier@CAPLEWLSE.clorox.com";END

### END EVENT ###
PROCESSED

1~7067605~1~1079639225(Mar 18 11:47:05 2004)
### EVENT ###
TEC_ITS_WireLess;source=nvserverd;sub_source=A;origin=x.x.64.155;hostname="caplewlse.clorox.com";adapter_hos
t=x.x.64.81;category=1;date="03/18/04 11:47:05 AM";severity=WARNING;status=OPEN;msg="cderMIBNotifPrefix 6 1
7 args:  [1] cderExceptionEntry.cderExcepId.14618 (OctetString): 28  [2] cderExceptionEntry.cderExcepHostAddress
Type.14618 (Integer): 1  [3] cderExceptionEntry.cderExcepHostAddress.14618 (OctetString): x.x.122.13  [4] cd
erExcepPriorityDescription.14618 (OctetString): P2  [5] cderExceptionEntry.cderExcepTime.14618 (Ticks): 84670114
9  [6] cderExceptionEntry.cderExcepData.14618 (OctetString): FaultId 28 DeviceId 253 DeviceIP x.x.122.13 Dev
iceName ohpai7103.clorox.com MO RF Port awc0 Change Packet Error is in Overloaded state (50%) ChangeSeverity P2
StateChange PacketErrors is Overloaded AlarmState Active OverallSeverity P1 DeviceType AccessPoint  [7] cderExce
ptionEntry.cderExcepReportedBy.14618 (OctetString): FaultNotifier@CAPLEWLSE.clorox.com ";nv_enterprise=cderMIBNo
tifPrefix;nv_generic=6;nv_specific=1;nv_var1="28";nv_var2=1;nv_var3="x.x.122.13";nv_var4="P2";nv_var5=846701
149;nv_var6="FaultId 28
DeviceId 253
DeviceIP x.x.122.13
DeviceName ohpai7103.clorox.com
MO RF Port awc0
Change Packet Error is in Overloaded state (50%)
ChangeSeverity P2
StateChange PacketErrors is Overloaded
AlarmState Active
OverallSeverity P1
DeviceType AccessPoint
";nv_var7="FaultNotifier@CAPLEWLSE.clorox.com";END



Ray Smith
IS Engineer
The Clorox Services Company
925-425-4363



James Shanks <jshanks@us.ibm.com>
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03/18/2004 11:37 AM
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Ray, you know more than you think you do.  

But I'm still confused, so maybe you should posts a couple of concrete examples.


But for the sake of argument let's say you have a trap coming into NetView with OID .1.3.6.1.4.1.9.9.224 and it has three variables.  The first is threshold, the second rogue app, and the third is clients associated.   Presumably these variables go over to TEC as different slots, along with hostname, and the usual stuff.  So if your device sends a trap A, which says P1=500, P2=agent1, and P3=client1, client2, client3; and then it sends trap B, which says  P1=600, P2=agent3, and P3=client4, client5, client6;   how are these not different slot values?  


Also, I have the dup-detect thing backwards.  You say dup_detect= yes for some field so that TEC doesn't trash events which are otherwise duplicates except for that field.  We use dup-detect for hostnames for example, so that a Node Up for host A is not  tossed because we get one for host B.  So I'm having a hard time seeing how that would not do the same thing for these events.  


If it truly is the case that all the fields are the same, then my question is, "how do you tell the events apart in NetView?"  By timestamp?     In that case, you could always have ovactiond kick off a script which adds that, and forwards to TEC with postemsg, or uses snmptrap to send an event of your own design, which you then froward to TEC instead of the original.




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


ray.smith@clorox.com
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03/18/2004 01:53 PM
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Subject Re: [nv-l] Wireless Network Management and cisco mibs








yep that one came up.


The dup detect rules are based on slot values and these are based on the varbind arguments that are forwarded.  Since the subtree 224.1.x.x.x does not parse into slots the dup does not see them as separate events.




Ray Smith
IS Engineer
The Clorox Services Company
925-425-4363

James Shanks <jshanks@us.ibm.com>
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03/18/2004 10:39 AM
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I'm not certain but I think the solution to your problem is in TEC.  Now my TEC skills are not hot, but they have a duplicate detection thing going on over there, which is configurable.  Have you asked them about turning it off?  If memory serves me, then somewhere in your TEC rules  you can say dup_detect = no and then the events are treated as individual just like they were sent.


Anyone else?


James Shanks
Level 3 Support  for Tivoli NetView for UNIX and Windows
Tivoli Software / IBM Software Group
ray.smith@clorox.com
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03/18/2004 01:26 PM
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Subject [nv-l] Wireless Network Management and cisco mibs












go easy I have only been using NV for 6 months.



I am attempting to Configure the Cisco's Wireless LAN Solution Engine to forward traps to NetView and then have NetView forward Events to the TEC Console.

NV 7.1.3 fp02 on Solaris,  TEC 3.7,   WLSE release 2.5fcs which manages the 1150 and 1200 series access points.


I searched the archives and found entries for monitoring access points dated 2001.  These entries referenced the 350 ap's and spoke of 802.11 mibs.  This unfortunately did not shed light on my problem.


The wlse refers to cisco-device-exception-reporting-mib.my.  This creates the oid .1.3.6.1.4.1.9.9.224 ciscoMgmt.  I was having trouble running mib2trap and opened a pmr.  Support guided me thru extracting the 224. trap from the mib and enlightened me on how wonderful cisco mibs are.


The Problem is;

wlse appliance options allow you to identify and forward events of interest to a north-bound trap receiver.  Everything from rogue ap detection to RF thresholds.  These can be setup with a P1, P2, P3 and so on.  When these event traps are forwarded they all come under the ciscoMgmt 224 oid.  (This is where I am learning, be kind) The ?varbind? arguments? for the additional 224.1.x.x.whatever that allow one to parse the ?varbind? trap ? arguments ? for the different P1 threshold, P1 rogue ap detect, P1 clients associated. All come under the top level 224. trap.


This is fine if the staff were only looking at the NV event browser.  Since I am forwarding these events to TEC what happens is the duplicate arguments do not work since all the messages come from wlse and the 224ciscoMgmt oid.  So every event that comes after the first one overwrites the previous.


Is there another way to do this?  Or shall I take Cisco TAC up on there offer to work with NetView Support and identify and then creating a more complete mib that parses the varbind arguments for the WLSE Appliance?


Any Ideas?  Or am I totally off base here and someone is about to take me to school?  (which I probably need)



Ray Smith
IS Engineer
The Clorox Services Company
925-425-4363



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