Transcript Basic Troubleshooting

OpenView and Network
Node Manager
Fundamentals
A Network Management Protocol –
SNMP
Simple Network Management Protocol
Management
Station
Managed
Node
SNMP Services
Status and
Configuration
Information
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OpenView and NNM
Fundamentals
[vpo_nnm_fund]
The Management Information Base
root (world)
0 ccitt
2 join-iso-ccitt
1 iso
3 org
1 reg
authority
0 std
2 member
body
6 dod
1 internet
2 mgmt
1 directory
1
3
experimental
4
private
mib-2
snmp
system
interfaces
at
ip
tcp
icmp
3
udp
egp
transmission
OpenView and NNM
Fundamentals
[vpo_nnm_fund]
The Basic Components of NNM
Remote System
NNM Local System
NNM Processes
and Applications
NNM
Databases
NNM User
Interfaces
Web
Launcher
Web
Browser
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OpenView and NNM
Fundamentals
[vpo_nnm_fund]
How NNM Works
Foreground
Processes associated with a user’s
interactive ovw session.
Processes, started by
ovstart, which monitor
network nodes.
Background
Processes
(Services)
OpenView
Database
Contains data stored and used by
foreground and background NNM
processes.
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OpenView and NNM
Fundamentals
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Starting NNM Services
ovsuf
ovstart
ovaddobj
snmpCol.conf
ovsessionmgr
snmpCollect
ovalarmsrv
ovspmd
ovdbcheck
ovuispmd
ovrepld
ovactiond
trapd.conf
LRF file
ovtrapd
pmd
ovwdb
ovtopmd
netmon
seed file
ovsnmp.conf_db
oid_to_type
HPoid2type
Binary Event
Store
Topology
Database
Object
Database
application, foreground process
database
service,background process
Configuration file
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OpenView and NNM
Fundamentals
[vpo_nnm_fund]
The OpenView Databases
• Object database. Contains general object information, including
some object attributes and capabilities.
• Topology database. Contains specific topology information
maintained and used by the IP network discovery and layout
services.
• Map database. Contains map-specific information, such as
submap customizations and symbol placement.
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OpenView and NNM
Fundamentals
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Basic NNM Windows
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OpenView and NNM
Fundamentals
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The Submap Window Components
Menu Bar
Tool Bar
Viewing Area
Status Bar
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OpenView and NNM
Fundamentals
[vpo_nnm_fund]
Introduction to Maps and Submaps
Map Default
Submap
Submap
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OpenView and NNM
Fundamentals
[vpo_nnm_fund]
The IP Submap Hierarchy
Root
Internet
Network
Segment
Node
Network
Segment
Node
Node
Segment
Node
Node
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Segment
Node
Node
Node
OpenView and NNM
Fundamentals
[vpo_nnm_fund]
Introduction to Objects and Symbols
Symbol
Real World
Object
Object
Database
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OpenView and NNM
Fundamentals
[vpo_nnm_fund]
Accessing Object Descriptions
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OpenView and NNM
Fundamentals
[vpo_nnm_fund]
Capabilities and General Attributes
•
•
•
•
Describe the object.
Set by NNM during discovery.
Capabilities cannot be changed.
General attributes are rarely changed.
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OpenView and NNM
Fundamentals
[vpo_nnm_fund]
IP Map Object Attributes
• IP-specific attributes
• Set and maintained by IP Map
• Vary with the object type
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OpenView and NNM
Fundamentals
[vpo_nnm_fund]
Locating an Object
• An object (corresponding symbols) may be located in the map via
one of the following search methods:
– By Selection Name
– By Attribute
– By Comment
– By Symbol Status
– By Symbol Type
– By Symbol Label
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OpenView and NNM
Fundamentals
[vpo_nnm_fund]
Symbol Class and Subclass
• Symbol class
– Groups related symbols
– Defines a symbol’s geometric shape
• Symbol subclass
– Corresponds to a symbol icon
– Image displayed on a submap
– Superimposed on class shape
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OpenView and NNM
Fundamentals
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Status Examples
IP Internet submap
Network B submap
A
Compound
Status is
Warning
42
B
B
42
Symbol
Status is
Normal
Interface to B
Interface to A
Interface to B
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OpenView and NNM
Fundamentals
[vpo_nnm_fund]