Cisco Model D9500 Switched Digital Video Server (NTSC and PAL) 릴리즈 노트
4035984 Rev A
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Appendix B: Policy
Appendix B: Policy
The simple video policy server that existed in prior versions of USRM 2.x. has been
enhanced in USRM 2.1.4 with a new configuration setting in which the mode is
explicitly configured. The modes are ChannelBased, GuaranteeAll, and
GuaranteeHighPri.
You can enter and configure applications that will be governed by USRM Policy on
the Resource manager under the ResourceManager.Application Policy tab. You can
specify up to 16 separate applications for each USRM. For each application, you can
also specify the minimum and maximum allowable bandwidth.
enhanced in USRM 2.1.4 with a new configuration setting in which the mode is
explicitly configured. The modes are ChannelBased, GuaranteeAll, and
GuaranteeHighPri.
You can enter and configure applications that will be governed by USRM Policy on
the Resource manager under the ResourceManager.Application Policy tab. You can
specify up to 16 separate applications for each USRM. For each application, you can
also specify the minimum and maximum allowable bandwidth.
Once the applications are configured, you can specify the policy mode on the
ResourceManager.Configuration page. You can choose one of three Policy Modes:
Channel Based, Guarantee All, and Guarantee Higher Priority.
ResourceManager.Configuration page. You can choose one of three Policy Modes:
Channel Based, Guarantee All, and Guarantee Higher Priority.
ChannelBased mode indicates that a QAM channel is configured for a specific
application. Channel based should be used for siloed applications (i.e., specific
TSIDs for VOD, specific TSIDs for SDV). If a TSID is not specified for a particular
application, any application can use it on a first-come, first-serve basis. If Channel
Based Mode is selected, the Minimum and Maximum Bandwidth settings on the
Application Policy page are not necessary, and are ignored if they are set.
TSIDs are specified for each application on the ResourceManager.QAMs.QAM
xyz.QAM Channels page. The example below shows a GQAM whose first carrier on
output Port 1 is VOD-only, whose fourth carrier is SDV-only and whose second and
third carrier can be used by either application.
application. Channel based should be used for siloed applications (i.e., specific
TSIDs for VOD, specific TSIDs for SDV). If a TSID is not specified for a particular
application, any application can use it on a first-come, first-serve basis. If Channel
Based Mode is selected, the Minimum and Maximum Bandwidth settings on the
Application Policy page are not necessary, and are ignored if they are set.
TSIDs are specified for each application on the ResourceManager.QAMs.QAM
xyz.QAM Channels page. The example below shows a GQAM whose first carrier on
output Port 1 is VOD-only, whose fourth carrier is SDV-only and whose second and
third carrier can be used by either application.
Use GuaranteeAll or GuaranteeHighPri when QAM sharing between applications,
such as VOD and SDV is enabled. Applications are allocated a specific percentage of
total bandwidth. A percentage of minimum bandwidth and maximum bandwidth is
specified for each application. These percentages apply to the total amount of
bandwidth available to the service group. If a QAM or other edge device is
OutOfService or otherwise unavailable, the USRM applies the percentages to the
total amount of bandwidth available at the time of the service request.
such as VOD and SDV is enabled. Applications are allocated a specific percentage of
total bandwidth. A percentage of minimum bandwidth and maximum bandwidth is
specified for each application. These percentages apply to the total amount of
bandwidth available to the service group. If a QAM or other edge device is
OutOfService or otherwise unavailable, the USRM applies the percentages to the
total amount of bandwidth available at the time of the service request.