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Re: Ref. : Discovery of Cisco 12000-series routers

To: nv-l@lists.tivoli.com
Subject: Re: Ref. : Discovery of Cisco 12000-series routers
From: Steve Francis <steve.francis@COMMSERV.UCSB.EDU>
Date: Wed, 18 Aug 1999 09:00:05 -0700
Well, I have some 12000's with ATM sub-interfaces, and Netview, with the patch
mentioned in a previous note, does discover everything fine. (You need to be at
5.1.1 to apply the patch.)

Thierry Van Mol wrote:

> Hi,
>
> I don't have answers, but I wanted to add that I have the exact
> same behaviour when discovering our new Cisco 7206 VXR routers.
>
> I only found that doing a ovtopofix generally fix the demand poll
> problem, and I have then to add manuall the ATM sub-interface
> to the router.
>
> We are running IOS 12.0(4), use tag-switching and ip cef is
> enabled.
>
> Let me know if you find anything more on this subject.
>
> Thierry
>
> ----------------------------------------------------------------------------
> Thierry Van Mol                            email: thierry.van-mol@ciev.vd.ch
> Centre Informatique de l'Etat de Vaud      Tel: 41 (0) 21 316 27 05
>
> On 16.08.99 22:38:44 NV-L wrote:
> >Hello,
> >
> >We have added some Cisco 12008 routers to our backbone recently
> >and I have been having difficulty getting NetView to discover
> >them.  I wanted to see if anyone on this list had had a similar problem.  I
> >added these routers to the seed file but netmon
> >never discovered them.  I've attemped to add them manually, but
> >when I do so only the loopback interface and the ethernet interface
> >are discovered.  The ATM subinterfaces of the router are never found.
> >
> >Another interesting point is that I am unable to demand poll the
> >routers which I have added manually.  Selecting the device on the
> >map and using Test->Demand Poll usually results in the message
> >"***** Node 'nodename' not found, demand poll skipped *****" (where nodename
> >is the name of the router).  Then again, sometimes it works
> >fine.  I've not yet determined a pattern of when it works and when
> >it does not.  When a demand poll does occur on a 12008 the messages
> >show that each interface, including the subinterfaces, are found
> >and pinged.  However, the subinterfaces never show in the device's
> >IP Map.  I can reliably ping the node via the GUI, use the
> >SNMP browser on it, and do pretty much anything else other than a demand
> >poll.  The selection name for the device is in DNS and
> >resolves properly.
> >
> >I've looked through the interfaces MIB and the IP MIB, comparing
> >the replies of the 12008 to those of our Cisco 7500-series routers
> >(on which ATM subinterfaces are discovered correctly).  I did find
> >a few differences but I'm not sure why they would cause this problem.
> >The 12008 has 2 entries in the interfaces.ifTable for each subinterface, one
> >for the subinterface (with an ifDescr description
> >like "ATM0/0.100-atm subif") and one for the AAL5 layer (with an
> >ifDescr like "ATM0/0.100-aal5 layer").  The ifType of the
> >ATM subinterface entries is number 134, which is listed as "atmSubInterface"
> >by IANA but does not appear in the oid_to_protocol
> >file in NetView.  I added it, and also updated the enum field for
> >this in the snmp_fields file.  The other difference is that the IP
> >addresses in the ipAddrTable for the 12008 references the ifIndex of
> >the subinterface in the interfaces table, where the entries for
> >subinterfaces in the 7500-series routers points to the ifIndex of
> >the associated physical interface.  This is perfectly sensable.
> >
> >Anyway, is anyone successfully managing a Cisco 12000 with NetView?
> >If so, how?
> >
> >BTW, I'm running NetView 5.1.1 on AIX 4.2.1.  The 12008 routers are
> >running IOS 11.2.15.
> >
> >Thanks in advance,
> >
> >Steve
> >
> >------------------------------------------------------
> >Steve Cochran      (573)884-7200        steve@more.net
> >MOREnet Network Systems Group      http://www.more.net


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