ITU-T H.248.52-2008
网关控制协议:QoS支撑包

Gateway control protocol: QoS support packages Study Group 16

ITU-T H.248.52-2008 发布历史

This Recommendation provides H.248 packages for different Quality of Service (QoS) support mechanisms. The QoS Class package (clause 6) defines a single property for signalling a QoS class codepoint. Such a codepoint may be correlated with a set of network performance parameters. Such parameters may be used in the area of transport resource management or admission control. The Differentiated Service package (clause 7) defines a property to control the setting of the 6-bit Differentiated Service (DS) field of the IP header, as defined in [IETF RFC 2474]. The Media Gateway Controller (MGC) can set the Quality of Service (QoS) for egress media flows without having to provision the Media Gateway (MG) with a default Differentiated Service Code Point (DSCP) value. Thus both packages have a slightly different scope as described in the sub-clauses below (see also Appendix II). The General IP Header QoS Octet package (clause 8) provides an extended capability, in comparison to the Differentiated Service package, in order to address the entire 8-bit field, and enable modification of individual bit values. 1.1 Typical application of the QoS Class package 1.2 Typical application of the Differentiated Services and General IP Header QoS Octet packages 1.3 Avoidance of Interaction between the Differentiated Services and General IP Header QoS Octet packages

ITU-T H.248.52-2008由国际电信联盟 IX-ITU 发布于 2008-06-01。

ITU-T H.248.52-2008 在中国标准分类中归属于: M11 通信网技术体制。

ITU-T H.248.52-2008 发布之时，引用了标准

• ITU-T H.248.1-2005 网关控制协议:第3版本 研究组16 视听服务系统和多媒体系统基础设施-通信程序 研究组16
• ITU-T H.248.15-2002 网关控制协议:SDP H.248打包贡献 H系列:视听服务系统和多媒体系统基础设施-通信程序 研究组16
• ITU-T I.371-2004 宽带综合业务数字网(B-ISDN).B-ISDN中传输控制与拥塞控制-普通网络要求和功能 研究组13
• ITU-T Q.3303.2-2007 3号资源控制协议.策略决议物理实体(PD-PE)和策略执行物理实体(PE-PE)(Rw接口)间接口的协议:可供选择的H.248.研究组11
• 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.1541-2006 基于IP业务的网络性能目标 第12研究组
• ITU-T Y.2012-2006 (预发布)NGN的功能要求和结构
• ITU-T Y.2111-2006 NGN中的资源和管理控制功能 第13研究组

ITU-T H.248.52-2008的历代版本如下：

• 2008年06月01日 ITU-T H.248.52-2008 网关控制协议:QoS支撑包

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标准号

ITU-T H.248.52-2008

发布日期

2008年06月01日

实施日期

废止日期

无

中国标准分类号

M11

发布单位

IX-ITU

引用标准

IETF RFC 2474 ITU-T H.248.1-2005 ITU-T H.248.15-2002 ITU-T I.371-2004 ITU-T Q.3303.2-2007 ITU-T Y.1291-2004 ITU-T Y.1541-2006 ITU-T Y.2012-2006 ITU-T Y.2111-2006

适用范围

This Recommendation provides H.248 packages for different Quality of Service (QoS) support mechanisms. The QoS Class package (clause 6) defines a single property for signalling a QoS class codepoint. Such a codepoint may be correlated with a set of network performance parameters. Such parameters may be used in the area of transport resource management or admission control. The Differentiated Service package (clause 7) defines a property to control the setting of the 6-bit Differentiated Service (DS) field of the IP header, as defined in [IETF RFC 2474]. The Media Gateway Controller (MGC) can set the Quality of Service (QoS) for egress media flows without having to provision the Media Gateway (MG) with a default Differentiated Service Code Point (DSCP) value. Thus both packages have a slightly different scope as described in the sub-clauses below (see also Appendix II). The General IP Header QoS Octet package (clause 8) provides an extended capability, in comparison to the Differentiated Service package, in order to address the entire 8-bit field, and enable modification of individual bit values. 1.1 Typical application of the QoS Class package 1.2 Typical application of the Differentiated Services and General IP Header QoS Octet packages 1.3 Avoidance of Interaction between the Differentiated Services and General IP Header QoS Octet packages

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