[Search for users] [Overall Top Noters] [List of all Conferences] [Download this site]

Conference netcad::hub_mgnt

Title:DEChub/HUBwatch/PROBEwatch CONFERENCE
Notice:Firmware -2, Doc -3, Power -4, HW kits -5, firm load -6&7
Moderator:NETCAD::COLELLADT
Created:Wed Nov 13 1991
Last Modified:Fri Jun 06 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:4455
Total number of notes:16761

1755.0. "Auditable Traps" by ODIF11::LICATA () Fri Dec 02 1994 19:19

    Does Hubwatch produce auditable traps. Is there such a thing
    defined in SNMP?
    
    I have a customer whom has three Network Command Centers. He is 
    starting to purchase DEChubs and Hubwatch. He has not standardized
    on a Enteprise Network Mgmt platform as trap receivers, but the for 
    runners are HP OV and Sun Net Mgr. 
    
    If a change is made on a DEChub via Hubwatch is there any way of
    knowing where that change came from? 
    
    As I understand it-  Hubwatch uses SNMP which is based on UDP -
    so if a trap is not generated upon the the receipt of the set request
    than there is no way of knowing where the set came from.  So guess the 
    real question is -- is/could the source address of the element manager
    (hubwatch) as well as the event (a successfully set) be sent as a trap?
    
    Thanks in advance,
    
    Jim     
    
T.RTitleUserPersonal
Name
DateLines
1755.1NETCAD::SLAWRENCEMon Dec 05 1994 12:285
    
    There is a group in the DEChub Public Common mib that can be used to
    control what addresses (address & mask) are allowed to perform sets,
    but no traps are sent for successfull sets.  
    
1755.2Not in SNMP, but is in SNMPv2.NETCAD::GALLAGHERMon Dec 05 1994 13:3621
Your customer can use pcomSnmpAuth objects in the "DEChub900 Public Common
MIB" to ensure that only the three Network Management Stations (NMS)
are allow set access.  (As described in .1.)

What your customer really wants is SNMPv2 on the NMS.  SNMP Version 2 
contains the "Manager to Manager" MIB.  It allows the three NMS to 
communicate changes made to a device.  (There are no plans to support
SNMPv2 in HUBwatch, but maybe HP and Sun will provide a solution.)

The next version of the Hub Management Agent Module (MAM) will contain RMON 
Alarms and Events.  If your customer uses the MAM for all sets to line-cards
in the hub, RMON A&E can be used to monitor key objects which indicate that
the hub has undergone a change.  RMON A&E can be set up to send an SNMP
trap when changes occur.  The addresses of the three NMS should be set as
"trap sinks" via the MAM's console, or via the pcomSnmpAuth group.  Only a
limited number of objects can be monitored (say 20).  For example, the MAM 
could be configured to send traps to the three NMS when the Hub's backplane 
configuration changed.  (There is no HUBwatch support for RMON A&E [and 
none is planned] so setting this up is only useful for very sophisticated 
SNMP users.) 
						-Shawn
1755.3Look foward to it. ODIF11::LICATAMon Dec 05 1994 16:294
    
    Thanks for the response. It was right on target.
    
    Jim