HP Systems Insight Manager - Manual (Page 202)

commonly used default. However, you can specify any community string needed for your security
requirements.
NOTE: Community strings on the managed system and the HP SIM community strings for the
system must match to manage the system through SNMP. Some SNMP management agents also
provide IP address filtering. Be sure the HP SIM IP address is in the allow list for any given SNMP
agents.
The operating system of the managed system can provide additional security capabilities for SNMP
such as IP address restrictions for valid requests.
HTTP
HP SIM also takes advantage of the industry standard HTTP protocol (used to transfer information
over the World Wide Web) for transportation of management information. Many systems support
some kind of configuration "home page" that is supported over HTTP or the secure HTTPS protocol.
HP SIM attempts to find HTTPS servers running on systems if the Global Protocol Settings page
has this enabled.
WBEM
WBEM is one of the newest management protocols. This protocol leverages the industry-standard
CIM as defined by the DMTF. HP SIM can communicate to systems directly using the WBEM
protocol or to the Windows WMI systems using the WMI Mapper Proxy. HP SIM uses WBEM to
communicate with storage system
SMI-S WBEM providers and HP-UX providers. HP has been
leading this effort through its association with the Distributed Management Task Force (DMTF).
WBEM is an initiative supported by HP, Microsoft, Intel, BMC, Cisco, and 120 other platform,
operating system, and application software suppliers.
When WBEM is enabled, the management console can obtain information from any system that
supports WBEM. For WBEM to work, you must provide the correct user name and password for
the given system. WBEM enables a larger set of server and storage manageability data to be
collected and displayed on the System Page and in reports. The presence of WBEM enables the
Properties
pages and enables WBEM indications (events) to be displayed in event collections.
Without HTTPS enabled, HP SIM does not discover any WBEM-based features on a system. Support
for non-HP systems has been expanded starting with HP SIM 6.0.
NOTE: HP SIM supports WBEM over HTTPS to ensure user supplied WBEM name and password
pairs are protected.
NOTE: OpenWBEM is not supported.
Remote Method Invocation (RMI)
Java RMI is used within the CMS only for inter-process communication.
Remote Wake-Up
Remote Wake-Up refers to the ability to remotely turn on a system that is in a soft-off power state.
Systems that support the Advanced Configuration and Power Interface (ACPI) should be awakened
transparently by any network activity to the system. Alternatively, a system might support the Magic
Packet technology. When a system is turned off, the Magic Packet — capable network interface
card (NIC) is still powered on and monitoring traffic. The system will be powered on, if it receives
the Magic Packet targeting it.
Internet Control Message Protocol (ICMP)
ICMP is used during automatic system discovery and prior to other requests to a system to ensure
the system is responding. An ICMP echo request, also known as a ping, is sent to the system's IP
address. Receipt of a proper reply indicates the system is up and responding.
202 Protocols used by HP SIM