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Unnumbered IP on a serial interface

To: nv-l@lists.tivoli.com
Subject: Unnumbered IP on a serial interface
From: "Westphal, Raymond" <RWestphal@erac.com>
Date: Thu, 31 May 2001 10:36:29 -0500
Let me try this note again. I should have provided the NetView and OS
information.

NetView for UNIX version 6.0.2 on AIX 4.3.3. 

We had an incident on our network last night where a serial interface went
down because the frame relay circuit DLCI was deleted. The event was not
Critical and was not forwarded to the Tivoli Event Console. 

Here's the text:

May 31 03:41:32 CDT: %LINEPROTO-5-UPDOWN: Line protocol on Interface
Serial0/0, changed state to down
May 31 03:41:34 CDT: %LINK-3-UPDOWN: Interface Serial0/0, changed state to
down
May 31 03:41:34 CDT: %FR-5-DLCICHANGE: Interface Serial0/0 - DLCI 500 state
changed to DELETED
May 31 03:41:34 CDT: %LINEPROTO-5-UPDOWN: Line protocol on Interface
Serial0/0.1, changed state to down
May 31 03:56:54 CDT: %LINEPROTO-5-UPDOWN: Line protocol on Interface
Serial0/0, changed state to up
May 31 03:56:55 CDT: %LINK-3-UPDOWN: Interface Serial0/0, changed state to
up
May 31 03:56:55 CDT: %FR-5-DLCICHANGE: Interface Serial0/0 - DLCI 500 state
changed to ACTIVE
May 31 03:56:55 CDT: %LINEPROTO-5-UPDOWN: Line protocol on Interface
Serial0/0.1, changed state to up

So NetView was able to ping the associated IP address because it also exists
on the FastEthernet interface. The event viewer did show corresponding
Cisco_Link_Down and Cisco_Link_Up traps. So here are my questions:

1) Do I have to setup SNMP polling in the seed file for NetView to use SNMP
to query the interface? 
2) How does NetView know this is an unnumbered interface?
3) I can create a ruleset to create a critical event to be forwarded to
Tivoli. Can I use the set state node in a ruleset to change the color of the
router object to red (Critical)?



Ray Westphal
Enterprise Rent-A-Car


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