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Appendix D
CDM-760 Advanced High-Speed Trunking Modem
Figure D-3. CDM-760 Switching – InBand "Disabled"
•
InBand Enabled – Figure D-4 shows the internal Ethernet architecture for the CDM-760
when InBand is "Enabled". In other circumstances it may be advantageous to allow the M&C
traffic and User Data traffic to co-exist in order to monitor and control a remote site without
the need for an external switch. Setting InBand as "Enabled" facilitates this configuration.
Figure D-4. CDM-760 Architecture – InBand "Enabled"
With this configuration, you must take care not to create an Ethernet loop (Figure D-5).
Ethernet loops happen when an Ethernet frame can get to the same switch or modem on
more than one port. See Sect. D.3.1 for more information.
D–4
Revision 4
MN-CDM760
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