Default DOCSIS 1.0 ToS Overwrite Overview
Currently, ToS overwrite requires the creation of static cable QoS profiles, which are assigned ToS fields and
are then associated with 1.0 CMs. This implementation works well if only a few different service types are
offered.
However, scalability issues arises when large numbers of service types are presented; each requiring a static
QoS profile in order to perform ToS overwrite.
The Default DOCSIS 1.0 ToS Overwrite feature eliminates the need to create multiple QoS profiles in order
to perform type-of-service (ToS) overwrite by automatically bounding all DOCSIS 1.0 Cable Modem (CM)
created profiles to a default ToS overwrite.
DOCSIS
Created by CableLabs, Data Over Cable Service Interface Specification (DOCSIS) defines the interface
standards and requirements for all cable modems associated with high-speed data distribution over a cable
television system network.
The DOCSIS architecture consists of the following two components:
•
Cable Modem (CM)
•
Cable Modem Termination System (CMTS)
Each of these components are situated at different locations, often with the CM located on a customer site
and the CMTS on the service provider site, and communication between the CM and CMTS is conducted
over cable through DOCSIS.
Though there are several versions of DOCSIS available, the Default DOCSIS 1.0 ToS Overwrite feature
is only applicable to CMs running DOCSIS 1.0.
Note
Type-of-Service (ToS)
Tools such as type-of-service (ToS) bits identification make it possible to isolate network traffic by the type
of application being used. ToS capabilities can be further expanded to isolate network traffic down to the
specific brands, by the interface used, by the user type and individual user identification, or by the site address.
How to Configure Default DOCSIS 1.0 ToS Overwrite
The tasks in this section enables the use of the Default DOCSIS 1.0 ToS Overwrite feature.
Cisco cBR Series Converged Broadband Routers Quality of Services Configuration Guide for Cisco IOS XE Fuji
16.7.x
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Default DOCSIS 1.0 ToS Overwrite
Default DOCSIS 1.0 ToS Overwrite Overview
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