GRASS VALLEY KARRERA, Installation & Service Manual

Page: 361 / 389

Installation & Service Manual
337
SNMP
Simple Network Management Protocol (SNMP) is an industry standard mechanism for monitoring devices
over a network, primarily intended to support service and maintenance activity. With SNMP, devices can be
interrogated about the current status of specific device components (reported as values), and devices can
report without prompting (traps) certain conditions that may require immediate attention.
An SNMP system consists of one or more Managed Devices, each of which has an Agent (software running
as a daemon on that device), and a Network Management System (NMS). The NMS is a software application
running on a computer that communicates with the Agents over the network. The information exchanged
is determined by a Management Information Base (MIB) database file. The MIB defines the structure and
content of the variables that are available as data for monitoring and reporting. A Community Name is also
used as a rudimentary security measure, acting as a password to enable communications with the Agent.
For example, a Managed Device may have a cooling fan and thermocouple. The MIB may define a variable
for the thermocouple readout, and a request for this data can be sent from the NMS to the Agent, which
will reply (if the community name matches) with the current temperature value. The MIB may also define a
Trap that reports a fan failure. Should the device’s fan stop working, the Agent sends an unprompted
message to the NMS. The NMS can be configured to respond to that Trap message, and may have the
capability to alert maintenance staff of the problem, via an automatic email message or by triggering a
warning alarm.
SNMP is an optional feature for Grass Valley switchers, and requires the purchase and entry of a license key.
SNMP is an industry standard, however, any third party NMS can be used. For third party NMS installation &
configuration, please contact your SNMP NMS software vendor.
SNMP Standards supported by Grass Valley K-Frame Family of Video
Switchers:
RFC 1155 Structure and Identification Management for TCP/IP-based Internet
RFC 1157 SNMP v1
RFC 1901-1907 SNMP v2c
RFC 1213 MIBII
RFC 1215 Convention for defining traps for use with the SNMP
The Grass Valley switcher MIBs are available from Grass Valley Customer Support. Load the MIBs for the
Video Processor Frame and Control Panel.
Grass Valley Proprietary MIBs
MIB Description Video Processor Frame Control Panel
gvg-reg last updated "200402190000Z" X X
gvg-element last updated "200503230000Z" X X
gvg-gcp last updated "200503240000Z" X X
gvg-vsm last updated "201304260000Z" X