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Thanks all for the clarification,
I
checked and found that Yes, we use $ in the seed file to assure SNMP
polling, now the question I'm trying to find an answer for is
that:
In SOME cases "Not always", the SNMP daemon on the agent "any
device" becomes disabled or not running, but NetView didn't catch this and
didn't report unreachable event why is that happening?
My
thought that NetView is using the ping to make sure that the device is really
down before generating the unreachable event, but this is not always the case,
Can
any one explain what is happening??
Regards!
Hany
Abadir
I apparently can't type
today
To assure polling with SNMP rather than ICMP you must have the "$"
-----Original
Message-----
From: owner-nv-l-digest@lists.us.ibm.com
[mailto:owner-nv-l-digest@lists.us.ibm.com]On Behalf Of Barr, Scott
Sent: Tuesday, October 07,
2003 8:19 AM
To: nv-l@lists.us.ibm.com
Subject: RE: [nv-l] SNMP vs
ICMP
There is one point of clarification - if you do discovery
without the "$" sign - NetView will discover using SNMP (assuming community
access) but that is not the same as polling with SNMP. To assure polling with
SNMP rather than SNMP you must have the "$" sign in netmon.seed.Otherwise
netmon will discover with SNMP and then poll with ICMP.
-----Original
Message-----
From: owner-nv-l-digest@lists.us.ibm.com
[mailto:owner-nv-l-digest@lists.us.ibm.com]On Behalf Of Jane Curry
Sent: Tuesday, October 07, 2003
2:50 AM
To: nv-l@lists.us.ibm.com
Subject: Re: [nv-l] SNMP vs
ICMP
In theory, you should not need to have entries in the seedfile
for
active discovery, as well as $ entries. Provided automatic
discovery is
turned on then the discovery algorithm should find things
eventually
unless entries in the seedfile prevent
discovery.
However, once you have any wildcard in your seedfile (*
? - ) then the
seedfile will PREVENT discovery of anything that is
not specified
explicitly or in a range. I guess it depends on your
policy for your
seedfile. As soon as you have any wildcards in your
seedfile, then
Ken's example is the way to
go.
Cheers,
Jane
Ken Karasek wrote:
>
>
Hany,
>
> If you are running v7.1 or later, review the
/usr/OV/conf/netmon.seed
> file for further information for controlling
node discovery. As I
> learned, you need to precede any special
line entry (lines prefixed
> with special character attributes $, !, ^,
etc.) with the discovery
> entry. This means you need to first discovery
the node(s) prior to
> assigning a limiting discovery attribute(s). This
will ensure
> discovery of the node(s), then netmon will create a list
of nodes with
> special discovery attributes and assign them to the
node(s) you
> defined.
>
> I have edited
an example from the netmon.seed file below to describe
> what I was
attempting to explain. The nodes are first discovered, then
> the
attributes are assigned.
>
>
> SNMP Status Support
>
#
> # Nodes that have serial interface
cards will automatically use SNMP
> # to
query for ifAdminStatus and ifOperStatus for ALL interfaces on
>
# that node. Specify other nodes you would
like to use SNMP to
> query
> # for
status instead of ICMP pings here.
> #
>
# Use the prefix '$', and use the same syntax
for ranges and
> wildcards
> #
described above for positive seed entries. For instance,
>
#
> # 1.1.2-10.221-230
>
# $1.1.2-10.221-230
>
>
> Hope this
helps,
>
> Ken
>
>
______________________
>
> Ken Karasek
> IS Network
Management
> Hewitt Associates, LLC
> 100 Half Day Road
>
Lincolnshire, Illinois 60069
> Phone: 847.295.5000
> FAX:
847.295.8877
>
> The information transmitted is intended only for
the person(s) or
> entity(ies) to which it is addressed. This
information may contain
> information that is confidential or otherwise
protected from
> disclosure. If you are not the intended recipient of
this message, or
> if this message has been addressed to you in error,
please immediately
> alert the sender by reply e-mail and then delete
this message,
> including any attachments. Any dissemination,
distribution or other
> use of the contents of this message by anyone
other than the intended
> recipient is strictly prohibited.
>
______________________
>
>
>
>
>
>
>
>
>
>
*CMazon@commercebankfl.com*
> Sent by:
owner-nv-l-digest@lists.us.ibm.com
>
> 10/06/2003 03:34 PM
>
Please respond to nv-l
>
>
>
To:
nv-l@lists.us.ibm.com
>
cc:
>
>
Subject: Re: [nv-l] SNMP vs
ICMP
>
>
>
>
>
> Do these commands work in
Windows Netview as well?
>
> Carlos
>
>
>
*Jane Curry
<jane.curry@skills-1st.co.uk>*
> Sent by:
owner-nv-l-digest@lists.us.ibm.com
>
> 10/06/2003 03:13 PM
>
Please respond to nv-l
>
>
>
To:
nv-l@lists.us.ibm.com
>
cc:
>
Subject: Re: [nv-l] SNMP vs
ICMP
>
>
>
>
>
> If you have $ entries in
your netmon.seed file then ping should not be
> used (unless an operator
uses the Test -> Ping menu). The way I usually
> check is with
the netmon -a commands:
> netmon -a
8 shows
nodes being status polled with SNMP
> netmon -a
12 shows netmon's ping
list (if status polls use
> SNMP, the first field should be a very large
number)
> netmon -a
16 shows netmon's SNMP
list
>
> All output is in
/usr/OV/log/netmon.trace.
>
> Cheers,
> Jane
>
>
Abadir Hany-O10544 wrote:
>
> >Hello,
> >I want to use
SNMP only not SNMP and icmp with NetView to prevent
> double
traffic
> >
> >I found out that /usr/OV/bin/ovtopodump -rl
<device name> returns
> some data which contains
>
>"SNMP STATUS POLL: MAXIMUM TIME" which means that the device is
>
configured for ICMP requests
> >
> >My question here: Does
this device also configured for SNMP requests
> since I added it to the
seedfile with $ in the front of the device name ?
> >
> >The
second question is that how I turn the ICMP request off and just
> keep
the SNMP request?
> >
> >I guess by issuing the following
command Netmon -M0?
> >
> >Is that right?
>
>
> >
> >
> >
> >
>
>Regards!
> >Hany Abadir
> >
> >
>
>
> >
> >
>
> --
> Tivoli
Certified Consultant & Instructor
> Skills 1st Limited, 2 Cedar
Chase, Taplow, Bucks, SL6 0EU, UK
> Tel: +44 (0)1628 782565
>
Copyright (c) 2003 Jane Curry <jane.curry@skills-1st.co.uk>.
All
> rights
reserved.
>
>
>
>
>
>
--
Tivoli
Certified Consultant & Instructor
Skills 1st Limited, 2 Cedar Chase,
Taplow, Bucks, SL6 0EU, UK
Tel: +44 (0)1628 782565
Copyright (c) 2003
Jane Curry <jane.curry@skills-1st.co.uk>. All rights
reserved.
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