Since none of those MIBs will be accessed or read by netmon for discovery
you have no problems there. And they play no role status in updates either
. Status is by ping. If you want to collect data from those MIBs
however, you should create either collections or wildcard groups in for use
in xnmsnmpconf. Since that does not support an index, you will just have
to specify the actual string for each collection or group.
James Shanks
Tivoli (NetView for UNIX) L3 Support
Frederic Mottiat <frederic_mottiat@BE.IBM.COM> on 04/21/99 05:47:17 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: James Shanks/Tivoli Systems)
Subject: Community string indexing
Good morning,
How can we deal with Community String Indexing in Netview ?
Usually a particular SNMP entity only contains one instance of the
MIB, and one community string is assigned to one IP address.
But particular devices such as Cisco Catalyst switches include
one instance of the standard BRIDGE-MIB for each Virtual LAN in the
switch. If the read-only community string is "public" and the read-write
community string is "private", one could use "public@25" to read the
BRIDGE-MIB for VLAN 25 and use "private@33" to read and write the
BRIDGE-MIB for VLAN 33. If just "public" or "private" is used, the
BRIDGE-MIB for VLAN 1 is accessed.
Traps sent from a mib that is indexed by community string also indicate
which instance of the mib it corresponds to be using a community string
indexing.
The problem is that we access the device with 1 IP address but may have
multiple community strings to use, depending on what information we
want to have (e.g. multiple VLAN for BRIDGE-MIB or SNMP-REPEATER-MIB).
I don't think this is a problem regarding the netmon's polling activity
for status, but could it be for configuration polling or discovery
polling ?
Also, how can we address this problem for data collection and thresholds
or MIB applications ?
Any help or comment highly appreciated ||||
Best regards
Frederic Mottiat - IBM Global Services (PSS-SMNS)
Tivoli Implementation & Services
Email : frederic_mottiat@be.ibm.com
Tel : 02/225 34 08 Gsm : +32 (0)75 388 773
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