Comtech EF Data CDM-760, Installation And Operation Manual

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Ethernet Interface Operation Revision 4
CDM-760 Advanced High-Speed Trunking Modem MN-CDM760
7–21
Absent the optional High-Speed Packet Processor, the rear panel
GBEI 1
(
J5 | DATA
),
GBEI 2
(
J6
| DATA ) ports and the optional Optical Ethernet SFP Module ( J7 | OPTICAL ) are operational and
configurable.
Note the following:
GBEI Common
Use the drop-down lists to select Flow Control or Learning as Enabled or Disabled.
Click [Submit] to save.
G B E I Interfaces (Dis able P IIC Interfaces B efore C onfiguring E thernet P orts )
Use the drop-down lists to select the appropriate mode of operation for the GBEI 1 ( J5 | DATA ),
GBEI 2 (J6 | DATA) ports or, when installed, the optional Optical Ethernet SFP Module ( J7 |
OPTICAL ).
Click
[Submit]
to save.
Tx Data Rates ( read-only )
See Chapter 6. FRONT PANEL OPERATION Sect. 6.2.2.2. (CONFIG: Tx) Data

Tx Data
Rate for detailed information about calculated data rates.
• Ethernet Data Rate (ETH_DR) – This is always TOT_DR – MIN_DR. It is all data associated
with the Ethernet data interfaces.
• Minimum Data Rate (MIN_DR) –
This
read-only
value is always zero (000000.000) when the
unit is in Single Stream Mode and only Ethernet Data Type is enabled. If the minimum data
rate is not zero, then the modem is in MultiStream Mode. In MultiStream Mode, the
MIN_DR is the aggregate of all active non-Ethernet interfaces, plus the MultiStream
overhead. This overhead is 1.5% of the aggregate non-Ethernet data in Normal Block Mode,
and 5% in Short Block Mode.
• Total Data Rate (TOT_DR) – This read-only value is the aggregate data rate of the modem.
It relates to the Tx symbol rate and spectral efficiency (ModCod) settings .
Interfaces ( read-only )
This section displays the operating status for all Ethernet and PIIC interfaces. Multi-stream Mode
operation is also identified here as Enabled or Disabled .
Otherwise, when the optional High-Speed Packet Processor is installed and enabled , note the
following:
Network Configuration
•
Enter a valid Mgmt IP Address/Mask for the P0 | MGMT port, subject to the following
restrictions:
Address / Address Range or Rule Reason
0.0.0.0 – 0.255.255.255 RFC 1700 broadcast messages
127.0.0.0 – 127.255.255.255 RFC 6761 loopback addresses