Generic Router monitoring and management plugin
Verax NMS Generic Router management plugin allows easy monitoring, alerting, health check, management and
performance reporting of SNMP-enabled routers supporting the following MIBs:
- RFC1213
- BRIDGE
- DISMAN-PING
- ENTITY-MIB (optional)
The Generic Router plugin can communicate using SNMP v1, v2 or v3.
Generic vs. dedicated plugins
The Generic Router plugin enables monitoring and management of router types/models that do not have dedicated Verax NMS plugins.
Dedicated plugins come first in the discovery order: if a dedicated plugin exists it is preferred over a generic one.
While the dedicated plugins typically provide additional functionality (display more information, allow for execution of management actions,
configuration management, etc.),
the Generic Router plugin provides full capability in terms of monitoring, performance measurements and alerting.
Examples of dedicated router plugins include:
Please refer to the Verax NMS page for more information on specific device support.
General view
The view presents general configuration information about a router such as:
-
Router vendor, model and firmware information
-
Name, uptime, location and administrative contact details
-
Interfaces' operational statistics (e.g. numbers of up/down events)
Internet protocol (IP) view
The view displays current IP configuration parameters (such as forwarding, default TTL, reassembly timeout and others)
and statistics (input receives, forwarded datagrams, routing discards and others).
Interfaces view
The view provides an inventory of all network interfaces on a device including:
-
Index and name (e.g. FastEthernet0/0)
-
Type (e.g. ethernetCsmacd)
-
Physical address
-
Administrative and operational statuses
-
Current configuration parameters (e.g. MTU size) and statistics (e.g. packets out, excessive collisions) for each interface
IP addressing view
This view provides a list of all IP addresses configured on a device including: address, mask, interface and broadcast address.
Routing table view
The view displays current IP routing table on a device including:
-
Destination IP address
-
Next hop interface and IP address
-
Route type and type dependent metrics (1 through 5)
-
Protocol describing how the route was learned
-
Age describing how long ago (in seconds) the route was created/modified
Entities view
The view provides detailed information about hardware (entities) on a device including:
-
Name (e.g. motherboard, daughter card slot, chassis, FastEtnernet card, etc.) and description
-
Containment information (e.g. card A is inserted into slot B)
-
Entity class indicating hardware type (e.g. port, module, container, etc.)
-
Hardware, firmware and software revision numbers
-
Manufacturer, model name and serial number
-
Replaceable flag indicating if given piece of hardware is considered to be a FRU (Field Replaceable Unit) or not
This information is only displayed if the device supports the SNMP ENTITY-MIB.
Standard MIBs
The Generic Router supports the standard MIB-2, enabling NMS to define sensors, performance counters, alarms and traps based on
standard MIB definitions.
Loading vendor MIBs
Additional MIBs can be loaded via NMS MIB Browser. OIDs from these MIBs can be used to define additional
sensors and performance counters as needed.
Predefined Generic Router monitoring templates
The plugin contains predefined templates for most commonly monitored router items.
Most important, selected templates are provided in the table below (other, additional sensors and performance counters
can be added by the user):
| Generic Router Interface Input Traffic |
| Generic Router Interface Output Traffic |
| Generic Router Interface inbound Non-unicast Packets |
| Generic Router Interface Outbound Non-unicast Packets |
| Generic Router Interface Traffic Ratio |
| Generic Router Interface Unicast Ratio |
| Generic Router Interface Discarded Packets Ratio |
| Generic Router Interface Packets With Errors Ratio |
| Generic Router IP Input Receives |
| Generic Router IP Input Headers Errors |
| Generic Router IP Input Address Errors |
| Generic Router IP Forwarded Datagrams |
| Generic Router IP Input Unknown Protocols |
| Generic Router IP Input Discards |
| Generic Router IP Input Delivers |
| Generic Router IP Output Requests |
| Generic Router IP Output Discards |
| Generic Router IP Output No Routes |
| Generic Router IP Reassembly Received Fragments |
| Generic Router IP Reassembly OKs |
| Generic Router IP Reassembly Fails |
| Generic Router IP Fragmentation OKs |
| Generic Router IP Fragmentation Fails |
| Generic Router IP Fragmentation Creates |
| Generic Router IP Routing Discards |
| Generic Router ICMP Input Messages |
| Generic Router ICMP Input Errors |
| Generic Router ICMP Input Destination Unreachs |
| Generic Router ICMP Input Time Exceeds |
| Generic Router ICMP Input Parameter Problems |
| Generic Router ICMP Input Source Quenches |
| Generic Router ICMP Input Redirects |
| Generic Router ICMP Input Echos |
| Generic Router ICMP Input Echo Replies |
| Generic Router ICMP Input Timestamps |
| Generic Router ICMP Input Timestamp Replies |
| Generic Router ICMP Input Address Mask Request Replies |
| Generic Router ICMP Output Messages |
| Generic Router ICMP Output Errors |
| Generic Router ICMP Output Destination Unreachs |
| Generic Router ICMP Output Time Exceeds |
| Generic Router ICMP Output Parameter Problems |
| Generic Router ICMP Output Source Quenches |
| Generic Router ICMP Output Redirects |
| Generic Router ICMP Output Echos |
| Generic Router ICMP Output Echo Replies |
| Generic Router ICMP Output Timestamps |
| Generic Router ICMP Output Timestamp Replies |
| Generic Router ICMP Output Address Masks Requests |
| Generic Router ICMP Output Address Mask Request Replies |
| Generic Router TCP Active Opens |
| Generic Router TCP Passive Opens |
| Generic Router TCP Attempt Fails |
| Generic Router TCP Closes |
| Generic Router TCP Current Established |
| Generic Router TCP Input Segments |
| Generic Router TCP Output Segments |
| Generic Router TCP Retransmitted Segments |
| Generic Router TCP Input Errors |
| Generic Router TCP Output RSTs Flags |
| Generic Router UDP Input Datagrams |
| Generic Router UDP No Application At Port |
| Generic Router UDP Input Errors |
| Generic Router UDP Output Datagrams |
Performance counters and alarming
All the above parameters can be added as sensors/performance counters within Verax NMS and configured for alarming.
Event processing
Verax NMS provides a set of standard, built-in event processing rules for MIB-2. Additional rules can be defined
based on standard and vendor-specific MIB OIDs.
See also
Generic Switch monitoring and management plugin 
Generic Firewall monitoring and management plugin
Generic Printer monitoring and management plugin
Generic UPS monitoring and management plugin
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