Path: utzoo!utgpu!watmath!clyde!att!ucbvax!HP-SDE.SDE.HP.COM!kincl%hp-iag
From: kincl%hp-iag@HP-SDE.SDE.HP.COM (Norman Kincl)
Newsgroups: comp.protocols.tcp-ip
Subject: Re: Network Monitor
Message-ID: <8901091832.AA05477@hp-iag.HP.COM>
Date: 9 Jan 89 18:32:48 GMT
References: <8901090311.aa25225@SEM.BRL.MIL>
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The Internet
Lines: 46


> Last spring two of my co-workers and I conducted and in-depth
> evaluation of offerings from Cabletron, Network General, Excelan,
> Hewlett Packard ...

Lots can happen in that time.

> Hewlett Packard:  I forget the model number, 

The model number is HP 4972A.

>                           Has a floppy disk and an optional 10MB(?) hard
> disk available.

A 20MB hard disk is standard.  Up to two additional hard disks (10, 20
or 40MB) can be added.

>                                                         Also loses when
> it comes to anything above the link layer.

We have a TCP/IP protocol interpreter that runs on the HP 4972A ( part
number HP 18221A).  It decodes the level 3 and 4 protocols of TCP,
DUP, IP, ICMP, ARP and RARP.

Other features include the use of an IP address list that allows users
to define names to be used in the display of information.  Addresses
that do not have a user-defined name are displayed in dotted-decimal
notation.  The interpreter will also flag checksum errors and illegal
frame lengths.

Also included are utilities that allow users to capture conversations,
trigger on events for further analysis (capture ICMP messages of
specific type, capture one conversation start to finish, capture
trivial window problems, and so on).

You can do things like display the login time, time to first data
transfer, number of frames that carry only one byte of data, number of
frames with more than one byte of data, number of acknowledgements and
total connect time.


-Norm Kincl
 Information Archirtecture Group, Hewlett-Packard

(I don't make or sell these things---call your local sales office if
you want real details.)