IRIS DC1100, Installation And Operational Manual

Page: 30 / 60

Coaxial Networks, Inc. Page 30 of 60
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.