Generic Router monitoring 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 provides predefined templates for most commonly monitored router items (listed in the table below). Other, user-defined sensors and performance counters can be added.

Generic Router monitoring templates
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

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 »