ITU-T Y.2172-2007
(预发布)NGN中的服务储存优先权等级 第13研究组

Service restoration priority levels in Next Generation Neworks Study Group 13

ITU-T Y.2172-2007 发布历史

As stated in [ITU-T Y.1271], enhanced priority treatment is an essential requirement for the assured capabilities needed for emergency telecommunications. One critical component is admission control and associated priorities as described in [ITU-T Y.2171]. Another critical component is service restoration particularly during emergency conditions with potentially reduced network bandwidth/resources. Under such conditions, emergency telecommunications interrupted by network failures require preferential restoration treatment. In the NGN, assured restoration can be enabled by: 1) development of service restoration priority levels based on the criticality of services; 2) development of the necessary extensions in signalling protocols that can indicate the restoration priority levels during call/session set-up; 3) development of restoration mechanisms that can recognize the signalled priority levels and undertake the necessary restoration/re-routing action. The scope of this Recommendation is limited to the development of priority levels for service restoration in the NGN. This guidance can be helpful in the development of the subsequent signalling extensions and restoration mechanisms. Administrations may require operators and service providers to take into account national regulatory and national policy requirements in implementing this Recommendation.

ITU-T Y.2172-2007由国际电信联盟 IX-ITU 发布于 2007-06-01。

ITU-T Y.2172-2007 在中国标准分类中归属于: L60 计算机综合。

ITU-T Y.2172-2007 发布之时，引用了标准

• ITU-T E.361-2003 QoS路由和相关交通工程方法结构-第E-电话网络和ISDN操作,编号,路由和移动服务和人为因素国际路由
• ITU-T Y.1271-2004 演进中电路及分组交换网络支持应急通信的网络要求与能力 Y系列 全球信息基础设施和网络协议方面和下一代*， 2022-07-18 更新
• ITU-T Y.1291-2004 分组网络中支持业务质量(QoS)的结构框架 Y系列 全球信息基础设施和网络协议方面和下一代网络
• ITU-T Y.2171-2006 NGN中的管理控制优先权等级 第13研究组

* 在 ITU-T Y.2172-2007 发布之后有更新，请注意新发布标准的变化。

ITU-T Y.2172-2007的历代版本如下：

• 2007年06月01日 ITU-T Y.2172-2007 (预发布)NGN中的服务储存优先权等级 第13研究组

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标准号

ITU-T Y.2172-2007

发布日期

2007年06月01日

实施日期

废止日期

无

中国标准分类号

L60

发布单位

IX-ITU

引用标准

ITU-T E.361-2003 ITU-T Y.1271-2004 ITU-T Y.1291-2004 ITU-T Y.2171-2006

适用范围

As stated in [ITU-T Y.1271], enhanced priority treatment is an essential requirement for the assured capabilities needed for emergency telecommunications. One critical component is admission control and associated priorities as described in [ITU-T Y.2171]. Another critical component is service restoration particularly during emergency conditions with potentially reduced network bandwidth/resources. Under such conditions, emergency telecommunications interrupted by network failures require preferential restoration treatment. In the NGN, assured restoration can be enabled by: 1) development of service restoration priority levels based on the criticality of services; 2) development of the necessary extensions in signalling protocols that can indicate the restoration priority levels during call/session set-up; 3) development of restoration mechanisms that can recognize the signalled priority levels and undertake the necessary restoration/re-routing action. The scope of this Recommendation is limited to the development of priority levels for service restoration in the NGN. This guidance can be helpful in the development of the subsequent signalling extensions and restoration mechanisms. Administrations may require operators and service providers to take into account national regulatory and national policy requirements in implementing this Recommendation.

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