Users Guide

Table 10. CMC Interfaces
Interface/
Protocol
Description
Telnet Provides command line access to CMC through the network. The RACADM command line interface and the
connect command, which is used to connect to the serial console of a server or IO module, are available from
the CMC command line.
NOTE: Telnet is not a secure protocol and is disabled by default. Telnet transmits all data, including
passwords in plain text.
SNMP Simple Network Management Protocol (SNMP) is a set of protocol definitions for managing devices on the
networks. The CMC provides access to SNMP, which allows you to use SNMP tools to query the CMC for
Systems Management information. The CMC MIB file can be downloaded from the CMC Web interface, go
to Chassis Overview > Network > Services > SNMP. See the Dell OpenManage SNMP Reference Guide
for more information about the CMC MIB.
The following example show how the net-snmp snmpget command can be used to get the chassis
service tag from the CMC.
snmpget -v 1 -c <CMC community name> <CMC IP
address>.1.3.6.1.4.1.674.10892.2.1.1.6.0
WSMan The WSMan Services is based on the Web Services for Management (WSMan) protocol to perform one-to-
many systems management tasks. You can use WSMan client such as WinRM client (Windows) or the
OpenWSMan client (Linux) to use the LC-Remote Services functionality. You can also use Power Shell and
Python script the WSMan interface.
WSMan is a Simple Object Access Protocol (SOAP)–based protocol used for systems management. CMC
uses WS–Management to convey Distributed Management Task Force (DMTF) Common Information Model
(CIM)–based management information. The CIM information defines the semantics and information types
that can be modified in a managed system.
The CMC WSMan implementation uses SSL on port 443 for transport security, and supports basic
authentication. The data available through WS-Management is provided by CMC instrumentation interface
mapped to the DMTF profiles and extension profiles.
NOTE: The SSL port used for transport security is the same as the CMC HTTPS port.
For more information, see:
● MOFs and Profiles — delltechcenter.com/page/DCIM.Library
● DTMF Web site — dmtf.org/standards/profiles/
● WSMan Release notes file.
● www.wbemsolutions.com/ws_management.html
● DMTF WS-Management Specifications: www.dmtf.org/standards/wbem/wsman
For client connection using Microsoft WinRM, the minimum required version is 2.0. For more information,
refer to the Microsoft article, <support.microsoft.com/kb/968929>.
Launching CMC using other systems management tools
You can also launch CMC from the Dell Server Administrator or Dell OpenManage Essentials.
To access CMC interface using Dell Server Administrator, launch Server Administrator on your management station. In the left
pane of the Server Administrator home page, click System > Main System Chassis > Remote Access Controller. For more
information, see the Dell Server Administrator User’s Guide at dell.com/support/manuals.
Remote RACADM installation
To use remote RACADM from your management station, install remote RACADM using the Dell Systems Management Tools and
Documentation DVD that is available with your system. This DVD includes the following Dell OpenManage components:
● DVD root — Contains the Dell Systems Build and Update Utility.
● SYSMGMT — Contains the systems management software products including Dell OpenManage Server Administrator.
Installing and setting up CMC
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