Chapter 4. Modem And Switch Configuration; Configure The Cdm-625A Or Cdm-625 For 1:1 Redundancy; Cdm-625A Or Cdm-625 Remote User M&C Ethernet Interface; For Cdm-625A Or Cdm-625S Without The Optional Ip Packet Processor - Comtech EF Data CRS-170A Installation And Operation Manual

CRS-170A L-Band 1:1 Redundancy Switch
Modem and Switch Configuration
4.2

Configure the CDM-625A or CDM-625 for 1:1 Redundancy

•
CDM-625A Advanced Satellite Modem Installation and Operation Manual
(CEFD P/N MN-CDM625A)
•
CDM-625 Advanced Satellite Modem Installation and Operation Manual
(CEFD P/N MN-CDM625)
The CDM-625A or CDM-625 Advanced Satellite Modem automatically detects if it is connected to a 1:1
redundancy system – the steps required to configure both modems are therefore minimal, with some
exceptions:
If the CDM-625A or CDM-625 has the optional IP Packet
Processor installed and enabled, 1:1 Redundancy is
controlled from the CDM-625A or CDM-625 HTTP
Interface Redundancy page.
When both the traffic and backup modems are
equipped with the optional IP Packet Processor and
are connected to the CRS-170A L-Band 1:1
Redundancy Switch), there is no need to use the
drop-down menu here, as Packet Processor
Redundancy is enabled automatically.
If you wish to operate either modem outside of the redundant setup as a standalone unit, use the drop-
down menu to select Packet Processor Redundancy for that specific modem as Disabled.
If terrestrial data is not Ethernet and CnC will not be used, then no modem 1:1 redundancy configuration
is needed. Otherwise, if either applies, refer to the sections that follow.
4.2.1 CDM-625A or CDM-625 Remote User M&C Ethernet Interface
4.2.1.1 For CDM-625A or CDM-625s without the Optional IP Packet
Processor
See the CDM-625A or CDM625 Advanced Satellite Modem Installation and Operation Manual
(CEFD P/N MN-CDM625A or MN-CDM625) for instructions to configure one of the four
10/100 Ethernet ports as the Dedicated Management Port for remote Ethernet M&C.
TO AVOID ETHERNET NETWORKING LOOPS – If you configure more than one Ethernet port
for Ethernet traffic, you must use separate Layer 2 switches unless the Layer 2 switch in use
isolates these ports from one another.
You may configure one of the CDM-625A or CDM-625's four available 10/100 Ethernet ports for M&C
Ethernet. As configured in Dedicated Management Port Mode, when the modem is offline the M&C-
designated port remains functional and available for operation, while the three remaining ports are
unavailable. Otherwise, if none of the 10/100 Ethernet ports are reserved for M&C operation; all four
ports become unavailable when the modem is offline.
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MN/CRS170A.IOM
Revision 14