[Top] [All Lists]

Re: [nv-l] Netmon on NT

To: nv-l@lists.us.ibm.com
Subject: Re: [nv-l] Netmon on NT
From: Gareth Holl <gholl@us.ibm.com>
Date: Wed, 3 Dec 2003 18:43:14 -0500
Delivery-date: Wed, 03 Dec 2003 23:50:07 +0000
Envelope-to: nv-l-archive@lists.skills-1st.co.uk
In-reply-to: <OFE74324A1.2ED7777C-ON85256DF1.00806934-85256DF1.00807BB1@mead.com>
Reply-to: nv-l@lists.us.ibm.com
Sender: owner-nv-l@lists.us.ibm.com

Timeouts depend on the device or more so the speed of the connection you would have been the device and NetView. I would consider 20 seconds to be too long a timeout for most ethernet devices. Generally speaking the default is satifactory - how long would you think it takes for a ping to make it to it's destination and back again - try it on the command line. Double it to be sage if you like, but 20 seconds would make for a slooooooow network. Of course if you are monitoring devices on the other end of a 64k serial (eg. dial-up) link, then maybe not.

Ping spray has nothing to do with community names. A ping spray is only used during discovery and is basically a series of ping tests of every valid IP address in a given subnet where it listens for responses as a means of learning of a devices existance. Usually netmon only pings IPs it has learnt about from the route tables (and other lists) from devices it has already discovered and has successfully SNMP polled. netmon can also learn of other devices via a seedfile, its own arp cache, or its own default route.

Gareth Holl
Staff Software Engineer

IBM Software Group - Tivoli Brand
Research Triangle Park,  North Carolina.

"Christopher J Petrina" <cjp8@meadwestvaco.com>
Sent by: owner-nv-l@lists.us.ibm.com

12/03/2003 06:23 PM
Please respond to nv-l

        To:        nv-l@lists.us.ibm.com
        Subject:        Re: [nv-l] Netmon on NT

WOuld you consider 20 seconds for 1st timeout fairly long to keep them in there.  with snmp setup properly.  We are not using Ping Spray.   Is Ping Spray more practical when we are not exactly sure of all the community strings on all the devices?

<Prev in Thread] Current Thread [Next in Thread>

Archive operated by Skills 1st Ltd

See also: The NetView Web