Avocent AV Works, Installer/User Manual

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94 AVWorks Installer/User Guide
• The remaining columns contain strings that represent a portion of the port’s EIA signals:
TD = Transmit Data
DSR = Data Set Ready
RD = Receive Data DCD = Data Carrier Detect
RTS = Request to Send RI = Ring Indicator
CTS = Clear to Send SIG3 = SIG3
DTR = Data Terminal Ready SIG4 = SIG4
The possible values in each of these columns are:
On = Power on
*On = Power on and value toggled since last poll
Off = Power off *Off = Power off and value toggled since last poll
To display port statistics:
1. Click the Settings tab in the CCM AMP.
2. Select the Ports - Statistics subcategory.
Using SNMP
The SNMP category specifies general SNMP configuration information. The SNMP - Traps
subcategory indicates which traps are enabled and disabled.
SNMP (Simple Network Management Protocol) is a protocol used to communicate management
information between network management applications and appliances. Other SNMP managers
(such as Tivoli and HP OpenView) may communicate with your appliance by accessing MIB-II
(Management Information Base) and the public portion of the enterprise MIB. MIB-II is a standard
MIB that many SNMP servers support. You may:
•
Enable or disable SNMP operations.
• Enter system information and community strings.
• Indicate which stations may manage the appliance. If you enter one or more allowable managers,
only those IP addresses will be able to manage the appliance using SNMP. If you do not enter
any allowable managers, the appliance may be managed using SNMP from any IP address.
• Indicate which stations (destinations) will receive SNMP traps from the appliance. If you do
not specify any trap destinations, no traps will be sent.
When you enable SNMP, the unit will respond to SNMP requests over UDP (User Datagram
Protocol) port 161. Port 161 is the standard UDP port used to send and receive SNMP messages.
NOTE: The CCM AMP uses SNMP within a secure tunnel to manage appliances. For this reason, UDP port 161
need not be exposed on firewalls. You will need to expose UDP port 161 to monitor Avocent appliances using
third party SNMP-based management software.
To configure general SNMP settings:
1. Click the Settings tab in the CCM AMP.
2. Select the SNMP category.
3. Enable or disable the Enable SNMP checkbox.