Having all interfaces named in DNS should not cause a problem for Netview.
It is the preferred approach, as long as all of the names are the same.
That is unless something has changed. I'm getting suspicious, though. In
the
cases where you are seeing two nodes, does the DNS use the round-robin
approach?
That is, does it resolve the name to a different address each time? I've
seen
this a couple of times lately and it seemed to coincide with this sort of
problem. If that's the case, it seems like putting one entry in /etc/hosts
for
the router would solve the problem. With /etc/netsvc.conf set to
hosts=local,bind
the name would always resolve to the one address, and the rest of the
addresses
would resolve to the single name in DNS.
Another possiblity is that they are using HSRP and DNS has maybe a little
too
much information regarding the hsrp interface. This part always confuses
me,
so I won't say any more about that.
Cordially,
Leslie A. Clark
IBM Global Services - Systems Mgmt & Networking
(248) 552-4968 Voicemail, Fax, Pager
---------------------- Forwarded by Leslie Clark/Southfield/IBM on 04/19/99
02:18 PM ---------------------------
Xu He <xuhe@YAHOO.COM> on 04/16/99 11:57:53 AM
Please respond to Discussion of IBM NetView and POLYCENTER Manager on
NetView <NV-L@UCSBVM.UCSB.EDU>
To: NV-L@UCSBVM.UCSB.EDU
cc: (bcc: Leslie Clark/Southfield/IBM)
Subject: Re: Routers that appears twice
Yes, we see this at our locations a lot. For us, it's a problem with
the DNS, for some strange reason, the WAN people at my client site
decided to give a DNS name for each interface on the router. It's not
too briliant of an idea, but it's something i have to live with.
During the initial discovery ping sweep, it sees the address and
resolve a name to the address. Since there are multiple DNS entries
associated with the same router, it creates two entries in the map.
What I ended up doing is delete both entry, put the ip address of the
interface I care about in the netmon.seed. Once I discovered the
correct one, I demand poll it and most of the time it will generate a
correct symbol. It's a painstaking process.
Hope this helps.
Xu He
--- Adrian Cappelletti <Adrian@TECNET.COM.AR> wrote:
> Hi all,
>
> Did it happen that 1 router appears twice in the
> same level of submap?. I mean: Suposse that you have
> a router with 4 interfaces. The situation is that in
> one symbol you see 2 interfaces and in a second
> symbol you see the others 2. But, all interfaces
> belong to a one router.
>
> Did anybody suffer something like this ?
>
> Thanks in advance.
>
> Adrian
>
>
>
===
Xu He
Network Engineer
Network Solutions, Inc
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