ADC Telecommunications, Inc.
420 CHAPTER 18: CONFIGURING CABLE MODEM TERMINATION SYSTEMS
Burst-len
The Burst-len parameter is the maximum number of mini-slots that can be
transmitted during a channel's burst time. A value of zero is transmitted if
the burst length is bounded by the allocation MAP rather than this profile. By
default, Max Burst Size is set to 0 for all interval usage codes.
You set the maximum burst size by performing the following tasks:
.
Diff
The Diff parameter enables differential encoding on this channel. By default,
Differential Encoding is disabled. Differential Encoding should be enabled
when FEC is not used and disabled when F EC is used.
You set the differential encoding by performing the following tasks:
.
Task Command
1. Enter cable interface
mode.
interface cable <c/s/i>
2. Configure the
maximum burst size.
modulation-profile <profile number>
interval-usage {initial | long | request | short |
station} burst-len <0..255>
Task Command
1. Enter cable interface
mode.
interface cable <c/s/i>
2. Enable the differential
encoding.
modulation-profile <profile number>
interval-usage {initial | long | request | short |
station} diff