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QMultiFlex-400™ Installation and Operating Handbook
7.5 Remote Modem M&C
It is not recommended to use the M&C bridge to bridge M&C and IP traffic together as
typically there are separate VLANS involved using different networks. Bridging the M&C
and traffic together limits the unit to one network, which is not typically what is desired with
a point to multipoint network.
Paradise has chosen to create a special VLAN that is used just for M&C traffic. It is
recommended to use any VLAN ID above 0 within the range (default is 0). This M&C VLAN
can be enabled simply by setting a VLAN ID and turning it on, in the appropriate IP menu
on the units at either end of the link. Each modem will then need to be power cycled to use
the new VLAN ID value. The modems will thereafter ensure that M&C traffic is kept
separate from user traffic and it will automatically be forwarded between hub and remote
modems as required. External equipment can be attached to the remote modem M&C port
to be included on the M&C network e.g. IP enabled BUCs. The M&C VLAN is filtered by
each modem.
The M&C VLAN can be used in all modes (including bridging and routing) and for all
waveforms, regardless of whether VLANs are being used generally or not. There is no
restriction on how much bandwidth can be used for the M&C VLAN and it will consume as
much or as little as required.
There is a separate menu option to enable remote-to-remote communications, where the
hub re-transmits requests made from one remote modem when attempting to communicate
with another remote modem.
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