1. Message Source Configuration: SNMP Trap Interception

2. Section Overview SNMP Traps as a Message Source
SNMP Trap process on the Management Server
VPO Distributed Event Interception
Avoiding Duplicate Messages
SNMP Trap Configuration
Configuration GUI
Generating Traps/Events
Examples
Message Source Configuration: SNMP Trap Interception

3. SNMP Traps SNMP Trap SNMP Agent SNMP Manager Managed Node
Enterprise ID
Generic Trap ID
Specific Trap ID
Varbind 1 ….
Varbind n
Managed Node
Management Server
Message Source Configuration: SNMP Trap Interception

4. SNMP Trap Interception
SNMP Agent
VPO agent only
SNMP Agent
NNM and VPO working in parallel
SNMP Manager
SNMP Agent
Management Server
NNM software only
SNMP Agent
No NNM or VPO software
Message Source Configuration: SNMP Trap Interception

5. SNMP Trap Interceptor on The Management Server
Conditions
VPO Trap
Interceptor
ovtrapd
pmd
port 162
Message
Agent
Community
Generic Trap ID
Specific Trap ID
Number of parameters
Parameters
VPO Message
Severity
Application
Message Group
Object
SNMP Trap Arguments
Default Message Attributes
Message Source Configuration: SNMP Trap Interception
Traps from Systems and Applications

6. VPO Distributed Event Interception
VPO Management
Server
RPC
TCP
NNM
RPC
pmd
opcmsga
opcmsga
NNM
ovtrapd
pmd
opctrapi
opctrapi
Events
ovtrapd
Events
Events
Message Source Configuration: SNMP Trap Interception

7. Distributed Event Interception: Benefits
Reduced Network Traffic and Management Server Workload through VPO-Specific Features for Local Processing
More attributes to suppress messages (e.g. SNMP Trap Variables)
Duplicate message suppression, local actions etc.
Event Correlation Services
Secure Communication between Agent and Management Server through DCE/RPC-Based Implementation
Authentication, Encryption
Flexible Management through VPO Flexible Manager Concepts
Follow-the-Sun, Competence Centers, Backup Manager
Message Source Configuration: SNMP Trap Interception

8. Distributed Event Interception: Configuration
Supported Platforms:
all Platforms, where NNM is supported
Novell NetWare 4.1, 4.11, 5.0, 5.1 with NMA 2.1 installed
Configuration Steps:
Configure Event Interception Template in Message Source Templates window and in Add SNMP Trap window.
Assign Event Interception Template to agents and distribute the templates.
If NNM is not to be used on agent for event interception (i.e. SNMP traps intercepted directly by opctrapi), then add the following line to file opcinfo:
SNMP_SESSION_MODE NO_TRAPD
Restart the VPO agents
Message Source Configuration: SNMP Trap Interception

9. How to Avoid Duplicate Messages
Problem Situation:
Node pepper
SNMP Destinations:
curry
nutmeg
Original method and showing how duplicates can occur
SNMP
Agent
Node curry
Node nutmeg
opctrapi
Using local interception and avoiding duplicates
opctrapi
OV pmd
OV pmd
opcmsga
opcmsga
VPO Management Server
OV pmd
opctrapi
Solution with VPO:
SNMP Agents must have only one trap destination configured
An VPO event interceptor runs on all possible SNMP destinations
Message Source Configuration: SNMP Trap Interception

10. SNMP Template Configuration
Add Trap within
Message Source
Templates and
define defaults
Match/Suppress
Condition
Window
Message Source Configuration: SNMP Trap Interception

11. SNMP Trap Condition Example
SNMP trap generated by OmniBack
snmptrap hpbblcs1.bbn.hp.com \
Integer 1 \
OctetString doghouse.bbn.hp.com \
OctetString”HP OmniBack:[Error}(Worklist Syntax) \
Can’t open worklist file’/etc/omniback/work’ Status: Critical \
OctetString “Critical” \
OctetString “Omniback”
Message Source Configuration: SNMP Trap Interception