User's Manual

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Overview of the WMTS and Modem Configuration – p.

Chapter 4. Overview of the WMTS

and Modem Configuration

This section provides an overview of the steps and tools necessary to configure

both sides of the communications link (WMTS and modem) required to add a

data modem or the data portion of a new E1/T1 modem to the network. Several

different tools and files are used as described below.

1. Make sure that the three required servers are installed and operational:

DHCP, ToD and TFTP. For details see Chapter 8, Installing Vyyo

Servers for WMTS Operation. The failure of the modem to establish

communication with any of these three servers will prevent the modem

from completing the registration process.

2. Review the Network IP Plan and use it to assign an IP address to the

WMTS, then make it permanent by following the procedure in the section

Setting the WMTS IP Address.

3. Verify that the right software version is loaded into the WMTS as

described in Appendix B. See the “readme” notes in the distribution

software for the version number.

4. Review the RF plan for the network and configure the WMTS upstream

and downstream channels accordingly using the procedures in Setting

the Upstream Channel. It may not be necessary to configure new

upstream and downstream channels when adding a modem; but if

required, the Vyyo Configuration tool can be used to modify these

parameters.

5. Review the RF Plan to find out which downstream frequency(ies) and

upstream channel ID(s) the modem will use to communicate with the

WMTS. Use the CMConfiguration Editor (CMConfigFileEditor.exe) to

edit the modem configuration file that will be downloaded to the modem

during the modem initialization sequence to reflect these choices and

other needed parameters (e.g., QoS or Class of Service, Max Number of

CPE, BPI Enable/Disable – required for E1/T1, etc.). If you know in

advance that this modem will be used for an E1/T1 connection then

additional edits may be made at this time as described in Chapter 6,

Configuring a T1 Connection.

NOTE: One modem configuration file may be used for

several modems if the same upstream channel ID and

downstream channel are used by all the modems (i.e.,

same “profile”); thus, this step may not be required every

time a new modem is added to the system.