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RE: [nv-l] SAN switch traps

To: <nv-l@lists.us.ibm.com>
Subject: RE: [nv-l] SAN switch traps
From: "John Sobrinho" <johnsobrinho@rogers.com>
Date: Thu, 8 Apr 2004 21:01:24 -0400
Delivery-date: Fri, 09 Apr 2004 02:19:06 +0100
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I am in the process of moving my brocade traps from test to production.
You might want read up on their SNMP documentation and the snmpmib.txt file. It is pretty clear to see what the variables and trap definitions are. I ended up using my own customized messaging and selecting only certain var binds and passed them to my scripts, as some of them were usless.
-----Original Message-----
From: owner-nv-l@lists.us.ibm.com [mailto:owner-nv-l@lists.us.ibm.com]On Behalf Of James Shanks
Sent: Thursday, April 08, 2004 9:32 AM
To: nv-l@lists.us.ibm.com
Subject: Re: [nv-l] SAN switch traps

OK, so you are saying that you get the traps but they are garbled; the format is not what you expected.  That's what I was trying to clarify.
So that is good.  It means (1) that the traps are being sent by Brocade, (2) they are in SNMP V1 format so NetView for Windows can receive them, and (3) they  are being received, and formatted in some fashion, even if not correctly, by what you have in trapd.conf.

So at this point you should be able to edit the definition for these traps in trapd.conf with Trap Settings  and change it.  Is that what you are having trouble with?     Or did you want to review the process by which you imported the trap definitions into trapd.conf in the first place to figure out where it went wrong?

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


04/08/2004 09:17 AM

James Shanks/Raleigh/IBM@IBMUS
Re: [nv-l] SAN switch traps

in the mean time I realized that those traps are not correctly because in their definition I have %d and not $d (for example) so they are only some kind of models (?) as far as I understand....

referring to your question: I don' have "no fmt found" traps.

I'm sure lots of such traps are sent by brocade switches: my events is somtehing like:

trapname: swFCPortScn        severity : Warning

source: Agent                        category: Error

Enterprise: sw                        Trap: 3


Node:   -  and this is the switch address

Description .... what I sent before

I'm not sure what you mean with "device or software log ...to find out".

I don't think traps are sent in V2 format as far as I can see them in my event console (even if uncorrecly formated) and I see them all in trapd.log. BUT in my mib file these are notification-type (this is snmp V2 name for trap-type ?) and also I think I had some problem to import them with mib2trap. in nv.log not traps are discarded!

I have ethereal installed to capture traffic especially on port 162 but I don't see why to start capture at this moment as far as I'm very sure these traps are from Brocade switch ...

thanks a lot James.. as allways your response are very good!



I hope I made my self clear... :)

What you installed are just definitions for how trapd should display those traps IF he gets them.
Do you see anything at all?  I mean are there unformatted traps which say "no fmt found" or  some garbled version of what you expect?

If not, there are two possibilities.
(1) Brocade is not sending the traps.  Is there some device or software log you can look at to find out?
(2) The traps are sent in SNMP V2 format.  NetView for Windows does not display SNMP V2 traps.  It has no code to interpret them, so they will be discarded.  How can you tell if you are getting V2 traps?   Well, you might see error messages in \usr\ov\log\nv.log about traps being discarded.

Alternatively you can answer both questions in a short time by downloading a free tool off the web.  It's called the Ethereal packet analyzer and it's available from
http://www.ethereal.com.  It installs easily in about five minutes.  Then you can set a capture filter for "udp and port 162" and see what is being sent to the MS Trap Service.  The packets will be nicely formatted.

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

"Lucian Vanghele" <lucian.vanghele@bisnet.ro>
Sent by: owner-nv-l@lists.us.ibm.com

04/08/2004 04:22 AM

Please respond to

[nv-l] SAN switch traps

hi there list !

I want to send traps from a Brocade SAN switch to a windows nv 713 and I receive allways messages like that:

- PORT INDEX %d changed to %d Port Name: %s and SSN is #%s, GroupName %s, GroupType %s, GroupMemPosition %d

I'm sure I imported correctly the traps from the switch mib file so... what could be the reason? It really doesn't help now.



Sincerely Yours / al Dvs.
Lucian Vanghele,
Senior System Engineer, Business Information Systems- BIS srl
tf./fax:+4021 255 4579
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