Cisco Model 6109 6 MHz Off-Air Reference (NTSC) 安装指南
Bandwidth Reclamation
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Default = 5 minutes.
Recapture Threshold is a setting that determines when the Server will begin any
bandwidth reclamation process. It is set to a default value of 100 Mbps by the
USRM and is located on the Applications.SdvSm.Configuration page of the
USRM webUI. If there is less than this amount of bandwidth available to the
server, it will begin sending the EventIndication message when bandwidth is
eligible for reclamation. Another way to consider this is that if the server has
used more than (Max Available BW - Recapture Threshold) Mbps, the server will
begin the bandwidth reclamation process. Prior to this threshold being met, the
server will not attempt to reclaim any unused bandwidth, regardless of how long
there has been no user activity (unless RecaptureMode is set to Immediate).
Default = 100 Mbps.
Note: Max Available Bandwidth for a Service Group is calculated by multiplying
the max bw per QAM carrier * the number of QAM carriers in a Service Group.
The default value for max available bandwidth for a 256-QAM carrier in the
USRM is 38.814 Mbps.
bandwidth reclamation process. It is set to a default value of 100 Mbps by the
USRM and is located on the Applications.SdvSm.Configuration page of the
USRM webUI. If there is less than this amount of bandwidth available to the
server, it will begin sending the EventIndication message when bandwidth is
eligible for reclamation. Another way to consider this is that if the server has
used more than (Max Available BW - Recapture Threshold) Mbps, the server will
begin the bandwidth reclamation process. Prior to this threshold being met, the
server will not attempt to reclaim any unused bandwidth, regardless of how long
there has been no user activity (unless RecaptureMode is set to Immediate).
Default = 100 Mbps.
Note: Max Available Bandwidth for a Service Group is calculated by multiplying
the max bw per QAM carrier * the number of QAM carriers in a Service Group.
The default value for max available bandwidth for a 256-QAM carrier in the
USRM is 38.814 Mbps.
Recapture Test Period is a setting that determines how often the USRM should
check to see if any bandwidth is eligible for recapture. It is set to a default value
of 5 minutes by the USRM and is located on the
Applications.SdvSm.Configuration page of the USRM webUI. Default = 5
minutes.
check to see if any bandwidth is eligible for recapture. It is set to a default value
of 5 minutes by the USRM and is located on the
Applications.SdvSm.Configuration page of the USRM webUI. Default = 5
minutes.
Bandwidth Reclamation Example
This example uses the following parameters:
Recapture Time = 2 hours (DNCS minimum allowed setting)
Recapture Mode = On Demand
LUA = 1 hour (default)
The process, represented by the following illustration, is explained in detail below.