Jeff, I had a similar problem with a different vendors hub once. The
solution was to add the "S" flag in the oid_to_type file and restart netmon.
You can read about the "S" flag in the comments section of the oid_to_type
file. Worth a try, good luck.

Blaine Owens
Eastman Chemical Company
Phone - (423)-229-3579
Fax - (423)-229-1188
bowens AT eastman DOT com

> -----Original Message-----
> From: Jeff Fitzwater [SMTP:jfitz AT PRINCETON DOT EDU]
> Sent: Wednesday, June 02, 1999 3:56 PM
> To:   NV-L AT UCSBVM.ucsb DOT edu
> Subject:      Hub gets deleted after sucessful snmp query??
>
> Problem:
>
> I have a Cabletron hub that gets deleted within seconds of being
> discovered or added via LOADHOSTS.
>
> 1. I am running Netview 5.1.1 on Solaris.
>
> 2. I have no specific entry in SNMPCONF for the hub.
>
> 3. The default SNMPCONF community is public and NODE DOWN DELETE
> INTERVAL is 52w.
>
> 4. The hub gets loaded and stays, if I don't let it get discovered via
> SNMP (Change default community to "junk").
>
> 5. Once the Hub is discovered by only ICMP, I then change the SNMPCONF
> default community back to public and do a demand poll.  The device goes
> through the following events and gets deleted as you can see.   I can
> repeat this at will.  It makes no difference if I give it a specific
> SNMPCONF entry.
>
>
> 6.  The oid_to_type is set to H for HUB.
>
> 7.  I do know that all the hubs that act this way have the sane agent
> code but why does Netview delete them?
>
> SEQUENCE of events...
>
> 1.      12:09:53        Node added
> 2.      12:09:53        Interface decriptor for Lan lan0 changed to "lan0"
> 3.      12:09:53        Interface lan0 up
> 4.      12:09:53        Network mask  for lan0 Changed to 255.255.252.0
> 5.      12:09:53        Interface Type for lan0 Changed to ieee 802.3
> csmacd
> 6.      12:09:53        Link address for lam0 Changed to (none)
> 7.      12:09:53        System name changed
> 8.      12:09:53        Node up
> 9.      12:09:53        Interface lan0 added
> 10.     12:10:14        Object Identifier changed to 1.3.6.1.4.1.52
> 11.     12:10:24        System Description Changed to "MRXI Version
> 1.04.01PR"
> 12      12:10:24        Interface lan0 Deleted
> 13.     12:10:24        Forwarding Status Changed -- Now a Host
> 14.     12:10:25        Node Deleted
>
>
> Any ideas why it gets deleted???