Generic Switch monitoring plugin

Verax NMS Generic Switch management plugin allows easy monitoring, alerting, health check, management and performance reporting of SNMP-enabled switches supporting the following MIBs:

  • RFC1213
  • BRIDGE
  • Q-BRIDGE (optional)
  • ENTITY-MIB (optional)

The Generic Switch plugin can communicate using SNMP v1, v2 or v3.

Generic vs. dedicated plugins

The Generic Switch plugin enables monitoring and management of switch 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 Switch plugin provides full capability in terms of monitoring, performance measurements and alerting. Examples of dedicated switch plugins include:

Please refer to the Verax NMS & APM page for more information on specific device support.

General view

The view presents general configuration information about a switch such as:

  • Switch 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

This information is displayed only if a managed switch has routing functionality.

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 Switch 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 monitoring templates

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

Generic Switch monitoring templates
Generic Switch Interface Input traffic
Generic Switch Interface Output Traffic
Generic Switch Interface Inbound Non-unicast Packets
Generic Switch Interface Outbound Non-unicast Packets
Generic Switch Interface Traffic Ratio
Generic Switch Interface Unicast Ratio
Generic Switch Interface Discarded Packets Ratio
Generic Switch Interface Packets With Errors Ratio
Generic Switch IP Input Receives
Generic Switch IP Input Headers Errors
Generic Switch IP Input Address Errors
Generic Switch IP Forwarded Datagrams
Generic Switch IP Input Unknown Protocols
Generic Switch IP Input Discards
Generic Switch IP Input Delivers
Generic Switch IP Output Requests
Generic Switch IP Output Discards
Generic Switch IP Output No Routes
Generic Switch IP Reassembly Received Fragments
Generic Switch IP Reassembly OKs
Generic Switch IP Reassembly Fails
Generic Switch IP Fragmentation OKs
Generic Switch IP Fragmentation Fails
Generic Switch IP Fragmentation Creates
Generic Switch IP Routing Discards
Generic Switch ICMP Input Messages
Generic Switch ICMP Input Errors
Generic Switch ICMP Input Destination Unreachs
Generic Switch ICMP Input Time Exceeds
Generic Switch ICMP Input Parameter Problems
Generic Switch ICMP Input Source Quenches
Generic Switch ICMP Input Redirects
Generic Switch ICMP Input Echos
Generic Switch ICMP Input Echo Replies
Generic Switch ICMP Input Timestamps
Generic Switch ICMP Input Timestamp Replies
Generic Switch ICMP Input Address Mask Request Replies
Generic Switch ICMP Output Messages
Generic Switch ICMP Output Errors
Generic Switch ICMP Output Destination Unreachs
Generic Switch ICMP Output Time Exceeds
Generic Switch ICMP Output Parameter Problems
Generic Switch ICMP Output Source Quenches
Generic Switch ICMP Output Redirects
Generic Switch ICMP Output Echos
Generic Switch ICMP Output Echo Replies
Generic Switch ICMP Output Timestamps
Generic Switch ICMP Output Timestamp Replies
Generic Switch ICMP Output Address Masks Requests
Generic Switch ICMP Output Address Mask Request Replies
Generic Switch TCP Active Opens
Generic Switch TCP Passive Opens
Generic Switch TCP Attempt Fails
Generic Switch TCP Closes
Generic Switch TCP Current Established
Generic Switch TCP Input Segments
Generic Switch TCP Output Segments
Generic Switch TCP Retransmitted Segments
Generic Switch TCP Input Errors
Generic Switch TCP Output RSTs Flags
Generic Switch UDP Input Datagrams
Generic Switch UDP No Application At Port
Generic Switch UDP Input Errors
Generic Switch 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

RMON monitoring and management plugin »

Generic Router monitoring and management plugin »

Generic Firewall monitoring and management plugin »

Generic Printer monitoring and management plugin »

Generic UPS monitoring and management plugin »