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    • 4. 发明申请
    • VOIP TRAFFIC ENGINEERING AND PATH RESILIENCE USING MEDIA GATEWAY INCLUDING NEXT-HOP ROUTERS
    • 使用媒体网关包括NEXT-HOP路由器的VOIP业务和路径弹性
    • WO2005034449B1
    • 2005-05-12
    • PCT/US2004031918
    • 2004-09-30
    • SANTERA SYSTEMS INCZHU RUPERTLU DAVID ZLI SAN-QIQIAN EDWARD Y
    • ZHU RUPERTLU DAVID ZLI SAN-QIQIAN EDWARD Y
    • H04L1/22H04L12/56H04L12/66
    • H04L12/66H04L45/10H04L45/22H04L45/28H04L45/3065H04L47/10H04L47/125H04L65/1023H04L65/1043H04L69/40
    • Method, systems, and computer program products for voice over IP (VOIP) traffic engineering and path resilience using media gateway (300) and associated next-hop routers (R1, R2, R3) are provided. In one example, a media gateway (300) includes multiple media processing hosts (H1, H2, H3, H4) and a multiple network interfaces (I1, I2, I3) separate from the media processing hosts (IPI1, IPI2, IPI3). At least one of the media processing hosts (H1) is reachable via at least two of the network interfaces (I1, I2). Next-hop routers (R1, R2, R3) associated with the network interfaces advertise reachability information regarding the media processing hosts (H1, -H4) to routers in the network (304). The next-hop routers (R1-R3) also participate in network routing protocols to form mulitiple paths between the media gateway (300) and a remote media gateway (302). Costs may be assigned to association between the media processing hosts (H1-H4) and the next-hop routers (R1-R3) for traffic engineering purposes.
    • 提供了使用媒体网关(300)和相关联的下一跳路由器(R1,R2,R3)的用于IP语音(VOIP)流量工程和路径弹性的方法,系统和计算机程序产品。 在一个示例中,媒体网关(300)包括与媒体处理主机(IPI1,IPI2,IPI3)分开的多个媒体处理主机(H1,H2,H3,H4)和多个网络接口(I1,I2,I3)。 至少有一个媒体处理主机(H1)可通过至少两个网络接口(I1,I2)到达。 与网络接口相关联的下一跳路由器(R1,R2,R3)向网络(304)中的路由器通告关于媒体处理主机(H1,-H4)的可达性信息。 下一跳路由器(R1-R3)也参与网络路由协议以在媒体网关(300)和远程媒体网关(302)之间形成多条路径。 为了流量工程的目的,可以将成本分配给媒体处理主机(H1-H4)和下一跳路由器(R1-R3)之间的关联。
    • 7. 发明申请
    • VOICE OVER IP MEDIA GATEWAY
    • IP媒体网关的声音
    • WO2005034454A2
    • 2005-04-14
    • PCT/US2004031920
    • 2004-09-30
    • SANTERA SYSTEMS INCZHU RUPERTLU DAVID ZLI SAN-QIQIAN EDWARD Y
    • ZHU RUPERTLU DAVID ZLI SAN-QIQIAN EDWARD Y
    • H04L1/22H04L12/56H04L12/66
    • H04L12/66H04L45/10H04L45/22H04L45/28H04L45/3065H04L47/10H04L47/125H04L65/1023H04L65/1043H04L69/40
    • Methods and systems for providing voice over IP traffic engineering and path resilience using a network-aware media gateway are provided. In a media gateway, voice over IP hosts (H1-H4) are assigned a first set of IP addresses (IPV1-IPV4). Network interfaces (I1-I3) in the media gateway (300) are assigned a second set of IP addresses (IPI1-IPI3) that differ from the first set of IP addresses. Per-interface routers (R1-R3) advertise reachability information from at least one of the voice over IP hosts (H1-H4) via multiple interfaces (I1-I3) and participate in network routing protocols to generate per interface routing tables. Voice over IP path lists (314) may be generated based on the per interface routing tables. Internal costs may be assigned to the associations between the voice over IP hosts (H1-H4) and the interfaces (I1-I3) based on traffic engineering criteria.
    • 提供了使用网络感知媒体网关提供IP话音工程和路径弹性的方法和系统。 在媒体网关中,为IP语音主机(H1-H4)分配第一组IP地址(IPV1-IPV4)。 媒体网关(300)中的网络接口(I1-I3)被分配与第一组IP地址不同的第二组IP地址(IPI1-IPI3)。 每个接口路由器(R1-R3)通过多个接口(I1-I3)从至少一个IP语音主机(H1-H4)发布可达性信息,并参与网络路由协议以生成每个接口路由表。 可以基于每个接口路由表来生成IP语音路径列表(314)。 内部成本可能会根据流量工程标准分配给IP语音主机(H1-H4)和接口(I1-I3)之间的关联。
    • 9. 发明申请
    • METHODS AND SYSTEMS FOR PER-SESSION DYNAMIC MANAGEMENT OF MEDIA GATEWAY RESOURCES
    • 媒体网关资源的会议动态管理方法与系统
    • WO2005033889A2
    • 2005-04-14
    • PCT/US2004032232
    • 2004-09-30
    • SANTERA SYSTEMS INCQIAN EDWARD YLU DAVID ZLI SAN-QISHEI YENLEE WEIJUN
    • QIAN EDWARD YLU DAVID ZLI SAN-QISHEI YENLEE WEIJUN
    • G06F20060101H04L12/66G06F
    • H04M3/2263H04L65/1043H04M7/121H04M7/1255
    • Methods and systems for per-session dynamic management of media gateway resources are disclosed. According to one method, the logical and physical resources in a media gateway are divided and dynamically managed at the Transport Layer (i.e. OSI Layer 4), which results in finer granularity than managing such resources statically at the Data Link Layer (i.e. OSI Layer 2) or Network Layer (i.e. OSI Layer 3). Voice-processing resources provided by voice server cards may be pooled into a common pool available to all external networks. For each new call/session, the dynamic resource manager of the media gateway dynamically allocates a voice chip from the pooled voice processing resources, and assigns a logical resource identifier (e.g. a local IP and local UDP pair) to the session. When a network interface card receives incoming voice packets, it checks the destination IP and UDP and optionally the source IP and UDP to find out, and forward voice packets to, the voice chip assigned to the session.
    • 披露了媒体网关资源的每会话动态管理的方法和系统。 根据一种方法,媒体网关中的逻辑和物理资源在传输层(即OSI层4)处被分割和动态管理,这导致比在数据链路层静态地管理这样的资源更精细的粒度(即OSI层2 )或网络层(即OSI第3层)。 由语音服务器卡提供的语音处理资源可以汇集到可用于所有外部网络的公共池中。 对于每个新的呼叫/会话,媒体网关的动态资源管理器从池化的语音处理资源动态地分配语音芯片,并且向会话分配逻辑资源标识符(例如本地IP和本地UDP对)。 当网络接口卡接收到传入的语音数据包时,它检查目标IP和UDP以及可选的源IP和UDP来查找分配给会话的语音芯片的语音数据包。