RE: [nv-l] CDP and Discovery
I was told by Support long ago that NV used CDP as well as ARP cache info.
I sure hope that is true. Although, it would explain this problem if NV
I don't know the answer to your MIB-II question.
It's too late for the snmpwalk. I suppose you mean NV uses the ARP entries
in the "at" or arp table.
I'll check the router the next time it occurs.
From: netview AT toddh DOT net [mailto:netview AT toddh DOT net]
Sent: Thursday, August 01, 2002 2:37 PM
To: Westphal, Raymond
Subject: Re: [nv-l] CDP and Discovery
"Westphal, Raymond" <RWestphal AT erac DOT com> writes:
> Hello Everyone.
> NetView 7.1.1 or 7.1.2 on AIX 4.3.3 ML10
> I have noticed a problem with discovery on two NetView servers. NetView
> fails to add Cisco switches, for example 2924 or 2950, to the map. The
> routers on the same network are on the map, are managed and are demand
> polled every 24 hours. If I telnet to the router(s) and enter the command,
> "show cdp neighbor", the switches are listed by their configured hostname
> which may or may not be the DNS name. The demand poll shows NV is querying
> the CDP cache.
I wasn't aware that NetView leveraged CDP at all. Doesn't it rely on
MIB-II to do all its discovery?
Does a /usr/OV/bin/snmpwalk of the router show the management
interfaces of the switches you're seeking to discover? If not, I
don't know that NetView would have any way of knowing the switches are
> My seed file only contains exclusions, HSRP and SNMP status poll
> entries. In other words, I do not have IP network ranges like
> 10.10.*.* in the seed file. If I add the switch IP address to the
> netmon.seed file and run the netmonaction.sh script, the switches
> are soon added to the map.