Management Information Bases#

Important

  • The VOSS Automate system uses standard MIBs that are usually deployed as part of a Network Management System (NMS).

    No VOSS Automate specific MIBs are available.

    The standard MIBs can for example be inspected from on-line resources, such as http://www.oidview.com/mibs/detail.html.

  • String values in the trap descriptions and examples shown here is illustrative purposes only.

  • Multi-line display in the trap examples shown here is done for formatting purposes only.

SNMP information is grouped together in Management Information Bases (MIBs). The MIBs loaded on the VOSS Automate system represent all the configuration/data items that can be queried or be used to generate traps (notifications) when certain events occur. A list of all MIBs loaded on the system is provided below.

In order to manage the system, a Network Management System (NMS) should be installed at the customer site (e.g. HP OpenView, iReasoningMib Browser). The NMS should be loaded with the same set of MIBs as those installed on the system. The NMS should be configured to send SNMP queries to the managed host (i.e. correct IP address, port number (default 161), community string (default public), and version (default version 2c).

Further, the NMS should be configured to receive traps from the managed host - the correct IP, port number (default 162), version (default version 2), and community strings (default public) should be provided).

SNMP items can be selected in the MIBs and the item queried on the remote managed system. The remote system will return a response to the MIB entry being queried.

For example, if the following entry is queried

.1.3.6.1.2.1.1.5.0 alias '.iso.org.dod.internet.mgmt.mib-2.system.sysName.0'

the system will return the system name that was assigned during setup (e.g. sysName.0 ‘Voss Node00’).

Note that if any of the configured details on the NMS are incorrect, it is likely that the query will never reach the managed host and no response will be received.

Please ensure that version 2 is selected with the correct community string (default public).

When the managed system generates certain events, it will forward a SNMP trap. The reason for the event trap is contained in the SNMP MIB string.

Note that if the corresponding SNMP MIB is not loaded on the NMS, a numerical representation of the SNMP entry is provided.

The list of monitored events is described in the SNMP Trap section below.

Refer to the MIB List at the end of this document for the list of net-SNMP packages that ship with VOSS Automate.

SNMPv2-MIB - RFC 3418 - Management Information Base (MIB) for the Simple Network Management Protocol (SNMP)#

Basic information about SNMP on the entity. Includes:

  • sysDescr: A text description of the entity

  • sysObjectID: The vendor’s authoritative identification of the network management subsystem contained in the entity.

Note: sysUpTime indicates how long the SNMP software has been running on the box, and not how long the box itself has been up (this is a common misconception).

  • sysUpTime: The time since the network management portion of the system was last re-initialised.

  • Counters for SNMP requests and responses

IF-MIB - RFC 2863 - The Interfaces Group MIB#

Describes the network interfaces on the entity. For each interface the following information is given:

  • ifType: The type of interface

  • ifMtu: Size of the largest packet which can be sent/received on the interface

  • ifSpeed: An estimate of the interface’s current bandwidth

  • ifPhysAddress: The interface’s address at its protocol sub-layer. For 802.x interfaces, this is the MAC address

  • The administrative and operational state of the interface

  • The number of octets and packets sent and received on the interface

MIB-II - RFC 1213 - Management Information Base for Network Management of TCP/IP- based internets#

TCP/IP network information not covered by the other MIBs, split into a number of groups:

  • Address translation group:

  • atPhysAddress: The media-dependent physical address

  • atNetAddress: The network address (IP address) corresponding to the physical address

  • IP group:

  • ipRouteTable: IP routing table, contains an entry for each route presently known to this entity

IP-MIB - RFC 4293 - Management Information Base for the Internet Protocol (IP)#

Internet Protocol information:

  • Counters for IP packets sent and received

  • For each IP address:

  • The IP address

  • Index of the physical interface (in the IF-MIB)

  • Netmask

  • ICMP counters

TCP-MIB - RFC 4022 - Management Information Base for the Transmission Control Protocol (TCP)#

TCP information:

  • Retransmission timeout information

  • Overall counters for number of inbound and outbound connections

  • For each current connection:

  • Connection state

  • Local and remote IP addresses and TCP port numbers

UDP-MIB - RFC 4113 - Management Information Base for the User Datagram Protocol (UDP)#

UDP information:

  • Counters for datagrams sent and received

  • Local IP addresses and UDP port numbers

HOST-RESOURCES-MIB - RFC 2790 - Management Information Base for Host Resources#

Objects useful for the management of host computers. These are split into a number of groups:

  • System Group

    • hrSystemUptime: Amount of time since the host was last initialised (note this is different from sysUpTime).

    • hrSystemDate: The host’s notion of the local date and time of day

    • hrSystemProcesses: The number of process contexts currently loaded or running on this system

  • Storage Group

    • hrMemorySize: The amount of physical read-write main memory, typically RAM, contained by the host

  • For each storage device:

    • hrStorageType: The type of storage (RAM, fixed disk etc.)

    • hrStorageDescr: A description of the storage (Swap Space, mount point etc.)

  • Size of storage units, number available and number used

  • Device Group

    • For each device:

      • Type (processor, network, disk, printer etc.)

      • Description

  • For each disk storage device:

    • Access (read-write, read-only)

    • Fixed/removable

    • Capacity

  • For each disk partition:

    • Label

  • For each file system:

    • Mount point

    • Type

    • Access (read-write, read-only)

    • Bootable

  • Running Software Group

    • For each running process:

      • Name

      • Path

      • Parameters

      • Status

      • Running Software Performance Group for each running process:

      • CPU resources consumed by this process

      • Amount of real system memory allocated to this process