Creating Class of Service Profiles
DOCSIS based data networks allow each cable modem to be associated to a class of service. This class of service configuration is downloaded by the cable modem during registration process using TFTP protocol.
IRIS provides a user interface using which you can enter different values for a cable modem configuration file and then save these settings to class of service. These classes of services profiles are then available to you in the “CM Subscription” section of IRIS configuration.
Figure 17 Class of Service Creation
When creating cable modem configuration files which specify the class of service that the cable modem and CPEs behind them will be receiving, you can specify a different downstream channel that the cable modem should resynchronize to after registering with this IRIS. You can also specify which upstream channel a cable modem should register on. The Upstream channel can be used to tie a particular class of service to a particular upstream channel. This setting is useful if you have IRIS DC1200 or IRIS DC1400 models.
The “Net Access Enable” setting specifies if CPEs behind a cable modem configuration that downloads this configuration file will be able to get access o the network or not.
The remaining settings specify the various parameters for class of service. Chose a “SVC Class ID” by which you want to identify this service. This value can be any integer value and is used for identification purposes only.
In the “MAX DS Rate…” specify the rate at which cable modems can download data. For example if you wish to provide a 512bps data rate, you would enter 512000 in this field.
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