BSR 2000 Configuration and Management Guide
Release 1.0
6-80
MGBI
526360-001-00 Rev. B
200-1600
is the maximum upstream physical delay in microseconds. The default
value is 1600 microseconds.
-or-
Use the
cable upstream physical-delay
command in Interface Configuration mode to
set the
fixed
value for an upstream channel:
MOT
(config-if)#
cable upstream
<
NUM
>
physical-delay
<
10-1600
>
where:
NUM
is the upstream port number.
10-1600
is the fixed upstream physical delay value in microseconds.
Enabling Pre-equalization
Use the
cable upstream pre-equalization
command to enable the pre-equalization
adjustment function on the upstream port, which includes sending pre-equalization
coefficients in a ranging response to a CM to compensate for impairment over the
transmission line in Interface Configuration mode:
MOT
(config-if)#
cable upstream
<
NUM
>
pre-equalization
where:
NUM
is the upstream port number.
If you need to disable the pre-equalization adjustment, use the
no cable upstream
pre-equalization
command.
Forcing the Fragmentation of Large Upstream Packets
The
cable upstream force-frag
command is used as a traffic shaping tool. When a
CM sends a request to the cable interface for a large data grant that exceeds the
configured minislot threshold, the cable interface grants the CM the configured
minislot threshold, which forces the CM to make another data grant request for the
remaining data, thereby causing the data packets to be fragmented by the CM.
Use the
cable upstream force-frag
command to force CMs to fragment large
upstream packets in Interface Configuration mode:
Note:
Not all CMs support the pre-equalization adjustment. If you enable the
pre-equalization adjustment for an upstream port and the CM does not
support this adjustment, the cable interface may not receive valid upstream
data from the CM.
Содержание BSR 2000
Страница 1: ...BSR 2000 Configuration and Management Guide 526360 001 00 Rev B Release 1 0 MGBI ...
Страница 6: ... Motorola Motorola Motorola Motorola Motorola Motorola Motorola Motorola Motorola ...
Страница 50: ......
Страница 130: ......
Страница 164: ......
Страница 458: ......
Страница 490: ......
Страница 580: ......
Страница 632: ......
Страница 648: ......
Страница 649: ......
Страница 650: ...526360 001 00 Rev B 7 06 MGBI Visit our website at www motorola com ...