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Re: Un-numbered Interface Connections

To: nv-l@lists.tivoli.com
Subject: Re: Un-numbered Interface Connections
From: Leslie Clark <lclark@US.IBM.COM>
Date: Mon, 21 Feb 2000 11:33:40 -0500
First, you have to configure Netmon to discover unnumbered interfaces.
Then demandpoll the two routers involved and a straight line network (as
opposed to a bubble network) should be drawn between them on the
IP Internet level of the submap.  Look at the two node-level submaps. There
should be interface cards drawn for the unnumbered interfaces. If one is
there and not the other, try deleting the one and demandpolling both.

There are some limitations to the discovery of unnumbered interfaces on
certain router hardware. For Bay devices using their 'circuitless IP' ,
there
is no entry in the interface table so there is nothing for Netview to find.
For
Cisco's prior to 11.2, if  you are using sub-interfaces, there is also
nothing
in the interface table and thus nothing for Netview to find.

There are some limitations to the management of unnumbered interfaces by
Netview V5 (greatly enhanced in V6!). They will be discovered, and their
status will be correct at the time of discovery, but they are not polled.
To
compensate for that, at current maintenance levels of Netview, the status
of the unnumbered interfaces is not included in the calculation of the node
status, so the node will go red when you lose contact with it, even though
the
unnumbered interfrace may still look green.

If there are any problems with this peculiar to the Solaris platform, I
would
not know about them.

Cordially,

Leslie A. Clark
IBM Global Services - Systems Mgmt & Networking
Detroit
===================================


> Any advise greatly appreciated.
> Netview 5.1
> Solaris 2.6
>
> I have a router with an un-numbered IP interface, I can display the
router
> at the far end and ethernet subnets hanging off that, (by specifying the
> subnets and router in my seed file).
>
> The problem I have is that the map will not display the connection
between
> the two routers. I have the two routers in location containers, have
added
> a connection between the two containers but it stays 'blue'. Is there a
> way for me to discover the un-numbered connection through discovery, or
is
> there a way I can 'frig' the map to show the link as normal ?
>
>
>
> Billy Clayton
> perot systems* Europe Ltd.
> +44 (0)7771 797539
>


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