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CRS-180 70/140 MHz IF 1:1 Redundancy Switch
Introduction
Figure 1-5. CDM-570 1:1 IP Redundancy Router Mode – Switchover ('B' Online)
1.2.1.1.2 CDM-625/750/700/710/710G Managed Switch Mode
A standard, user‐provided Ethernet Layer 2 Switch is needed when a CDM‐625, CDM‐750, CDM‐
700, CDM‐710, or CDM‐710G modem is configured for Managed Switch Mode (also known as
"Ethernet Bridge Mode") terrestrial traffic.
A Layer 2 Switch is designed to limit the traffic that egresses each port by only sending Ethernet
packets out the port that the destination network device is located. The switch maintains a table
‐ known as the dynamic Content‐Addressable Memory (CAM) table ‐ that maps MAC addresses
to switch ports. When a packet arrives, in which an entry for that specific destination MAC is
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Revision 8
MN/CRS180.IOM
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