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    SUPPORTING ENHANCED MEDIA COMMUNICATIONS
    1.
    发明申请
    SUPPORTING ENHANCED MEDIA COMMUNICATIONS 审中-公开
    支持加强媒体传播

    公开(公告)号：WO2005019988A3

    公开(公告)日：2006-05-04

    申请号：PCT/US2004025686

    申请日：2004-08-09

    Applicant: CISCO TECH IND ,  TIGHE JAMES R ,  HAHN PAUL S ,  PLATT RICHARD B ,  MC FARLAND ROWAN L

    Inventor： TIGHE JAMES R ,  HAHN PAUL S ,  PLATT RICHARD B ,  MC FARLAND ROWAN L

    IPC: G06F20060101 ,  H04M3/42

    CPC classification number: H04M7/0027 ,  H04L51/04 ,  H04L65/1046 ,  H04L65/1069 ,  H04L65/403 ,  H04M2201/50 ,  H04N7/147 ,  H04N7/15 ,  H04N21/42203 ,  H04N21/4223 ,  H04N21/4788

    Abstract: A method for supporting communications includes establishing a packet-based audio communication link with a remote device (12) and forming a local computing device (14) of the audio communication link. A message requesting identification of enhanced media (26) capabilities associated with the remote device is received from the local computing device (14) and tunneled in the audio communication link (24) to the remote device (12). A tunneled response in the audio communication link is received from the remote device (12) and forwarded to the local computing device (14). The response identifies the enhanced media capabilities associated with the remote device (14).

    Abstract translation: 一种用于支持通信的方法包括与远程设备（12）建立基于分组的音频通信链路并形成音频通信链路的本地计算设备（14）。 从本地计算设备（14）接收请求识别与所述远程设备相关联的增强媒体（26）能力的消息，并在所述音频通信链路（24）中隧道传送到所述远程设备（12）。 音频通信链路中的隧道响应从远程设备（12）接收并转发到本地计算设备（14）。 响应标识与远程设备（14）相关联的增强的媒体能力。

    SYSTEM AND METHOD FOR PRESERVING MULTICAST DATA FORWARDING DURING CONTROL FAILURES IN A ROUTER
    2.
    发明申请
    SYSTEM AND METHOD FOR PRESERVING MULTICAST DATA FORWARDING DURING CONTROL FAILURES IN A ROUTER 审中-公开
    在路由器中控制失败期间保留多播数据的系统和方法

    公开(公告)号：WO2006014710A3

    公开(公告)日：2006-04-06

    申请号：PCT/US2005025704

    申请日：2005-07-20

    Applicant: CISCO TECH IND

    Inventor： WINDISCH KURT J ,  LEE WEESAN ,  KOUVELAS ISIDOROS

    IPC: H04J3/26 ,  G01R31/08

    CPC classification number: H04L45/00 ,  H04L45/16 ,  H04L45/22 ,  H04L45/28 ,  H04L45/60 ,  H04L49/201

    Abstract: A multicast non-stop forwarding (NSF) router architecture enhances high availability of a multicast router (400) in a computer network. The router architecture further preserves multicast data forwarding through a data plane (470) during NSF recovery of one or more failures in a control plane (410) of the router(400). Various multicast components of the router (400) cooperate to provide a checkpointing and recovery technique of the multicast NSF architecture that enables efficient restart and recovery of the control plane failures without loss of data connectivity. In addition, a technique prevents multiple multicast forwarders from forwarding multicast packets for a route over a link in a computer network during NSF recovery of one or more failures in a control plane (410) of a multicast router (400).

    Abstract translation: 多播不间断转发（NSF）路由器架构增强了计算机网络中组播路由器（400）的高可用性。 路由器架构还在路由器（400）的控制平面（410）中的一个或多个故障的NSF恢复期间进一步保留通过数据平面（470）的组播数据转发。 路由器（400）的各种组播组件协作提供组播NSF架构的检查点和恢复技术，其能够在不损失数据连接的情况下有效地重新启动和恢复控制平面故障。 另外，在组播路由器（400）的控制平面（410）中的一个或多个故障的NSF恢复期间，技术可以防止多个多播转发器在计算机网络中的链路上为路由转发多播分组。

    RAPID PROTOCOL FAILURE DETECTION
    3.
    发明申请
    RAPID PROTOCOL FAILURE DETECTION 审中-公开
    快速协议故障检测

    公开(公告)号：WO2006016982A3

    公开(公告)日：2006-03-30

    申请号：PCT/US2005022097

    申请日：2005-06-21

    Applicant: CISCO TECH IND ,  APPANNA CHANDRASHEKHAR ,  RAMAIAH ANANTHA ,  KAPOOR RUCHI

    Inventor： APPANNA CHANDRASHEKHAR ,  RAMAIAH ANANTHA ,  KAPOOR RUCHI

    IPC: G01R31/08

    CPC classification number: H04L41/06 ,  H04L43/0811 ,  H04L45/00 ,  H04L45/04 ,  H04L45/22 ,  H04L45/28 ,  H04L67/14 ,  H04L69/16 ,  H04L69/163 ,  H04L69/40

    Abstract: A method is disclosed for rapidly detecting a protocol failure. In one embodiment, the method includes receiving an indication that a first process has failed. The first process having been engaged in communications over one or more network connections with a second process. A packet is formed, such that the packet appears to have been formed by the first process. The packet includes one or more data values, which, when received and processed by the second process, will cause the second process to close the network connection. The packet is sent to the second process. When the second process receives the packet, the second process to closes the network connection.

    Abstract translation: 公开了一种用于快速检测协议故障的方法。 在一个实施例中，该方法包括接收第一过程失败的指示。 第一个过程已经通过一个或多个网络连接与第二个过程进行通信。 形成分组，使得分组似乎已经由第一过程形成。 该分组包括一个或多个数据值，其在第二过程接收和处理时将导致第二过程关闭网络连接。 数据包被发送到第二个进程。 当第二个进程接收到数据包时，第二个进程关闭网络连接。

    PROPAGATION OF MINIMUM GUARANTEED SCHEDULING RATES
    6.
    发明申请
    PROPAGATION OF MINIMUM GUARANTEED SCHEDULING RATES 审中-公开
    最低保证调度费率的传播

    公开(公告)号：WO2006017753A2

    公开(公告)日：2006-02-16

    申请号：PCT/US2005027922

    申请日：2005-08-05

    Applicant: CISCO TECH IND

    Inventor： COHEN EARL T ,  OLSEN ROBERT ,  KAPPLER CHRISTOPHER J ,  CHARNY ANNA

    IPC: H04L12/28 ,  H04L12/54

    CPC classification number: H04L47/527 ,  H04L47/50 ,  H04L47/525 ,  H04L47/58 ,  H04L47/60 ,  H04L47/6215 ,  H04L47/628

    Abstract: Propagation of minimum guaranteed scheduling rates among scheduling layers in a hierarchical schedule is disclosed. The minimum guaranteed scheduling rate for a parent schedule entry is typically based on the summation of the minimum guaranteed scheduling rates of its immediate child schedule entries. This propagation of minimum rate scheduling guarantees for a class of traffic can be dynamic (e.g., based on the active traffic for this class of traffic, active services for this class of traffic), or statically configured. One embodiment also includes multiple scheduling lanes for scheduling items, such as, but not limited to packets or indications thereof, such that different categories of traffic (e.g., propagated minimum guaranteed scheduling rate, non propagated minimum guaranteed scheduling rate, high priority, excess rate, etc.) of scheduled items can be propagated through the hierarchy of schedules accordingly without being blocked behind a lower priority or different type of traffic.

    Abstract translation: 公开了在分层调度中在调度层之间传播最小保证调度率。 父母日程条目的最小保证日程安排率通常基于其直接子日程条目的最小保证日程安排率的总和。 针对一类业务的最小速率调度保证的传播可以是动态的（例如，基于这类业务的活动业务，用于这类业务的活动业务）或静态配置。 一个实施例还包括用于调度项目的多个调度通道，诸如但不限于分组或其指示，使得不同类别的通信量（例如，传播的最小保证调度率，非传播最小保证调度率，高优先级，超额率 等等）的预定项目可以相应地通过时间表的分层结构传播，而不被阻止在较低优先级或不同类型的业务之后。

    ERROR PROTECTION FOR LOOKUP OPERATIONS IN CONTENT-ADDRESSABLE MEMORY ENTRIES
    7.
    发明申请
    ERROR PROTECTION FOR LOOKUP OPERATIONS IN CONTENT-ADDRESSABLE MEMORY ENTRIES 审中-公开
    内容可寻址存储器中的查找操作的错误保护

    公开(公告)号：WO2006007250A2

    公开(公告)日：2006-01-19

    申请号：PCT/US2005019092

    申请日：2005-06-01

    Applicant: CISCO TECH IND

    Inventor： SHOHAM DORON ,  LISTMAN SHIMON ,  SHAPIRO ELIAHU

    IPC: G06F12/00 ,  G11C15/00

    CPC classification number: G11C15/00 ,  G06F11/1064

    Abstract: Error protection for lookup operations in a content-addressable memory (CAM) entries is disclosed. Values extended to include error protection or error protection fields are stored in CAM entries and a lookup operation is performed on a similarly extended lookup word to determine whether or not an entry is matched, that is, if all or all but some predetermined number of bits match one of the extended entries. For example, one implementation includes multiple CAM entries and logic configured to perform a lookup operation in parallel on each of the CAM entries based on a lookup word to determine whether or not a hit results, where the hit is determined if an entry matches the lookup word in all or all but k bit positions, where n and k are integers, n > k, and k > 0.

    Abstract translation: 公开了对内容寻址存储器（CAM）条目中的查找操作的错误保护。 扩展为包括错误保护或错误保护字段的值存储在CAM条目中，并且对类似扩展的查找字执行查找操作以确定条目是否匹配，即，如果全部或全部，但是除了一些预定数量的位 匹配一个扩展条目。 例如，一个实现包括多个CAM条目和逻辑，其被配置为基于查找字来并行地对每个CAM条目执行查找操作，以确定命中是否得到确定，其中条目是否匹配查找 除k个位之外的所有或全部字，其中n和k是整数，n> k和k> 0。

    METHODS AND APPARATUS FOR ACCESSING PRESENCE INFORMATION
    8.
    发明申请
    METHODS AND APPARATUS FOR ACCESSING PRESENCE INFORMATION 审中-公开
    用于访问存在信息的方法和装置

    公开(公告)号：WO2005022339A3

    公开(公告)日：2006-01-05

    申请号：PCT/US2004027888

    申请日：2004-08-27

    Applicant: CISCO TECH IND

    Inventor： DAY MARK STUART

    IPC: H04L29/08 ,  G06F15/16 ,  G06F11/30 ,  G06F12/14

    CPC classification number: H04L67/24

    Abstract: A presence server provides presence information to content subscribers via unicast transmission of the presence information. In the case where the presence server receives, from a subscriber, a subscription request for presence information having a relatively large number of subscribers, the presence server directs the content subscriber to a multicast transmission channel. The content subscriber, in turn, accesses the presence information via the multicast transmission channel. By directing content subscribers toward the multicast transmission channel, the presence server conserves connection resources associated with the presence system, thereby allowing the presence system to distribute presence information with a relatively high level of speed and efficiency. Furthermore, by directing content subscribers toward the multicast transmission channel, the presence server minimizes the costs associated with adding new subscribers to the presence system.

    Abstract translation: 呈现服务器通过存在信息的单播传输向内容订户提供呈现信息。 在存在服务器从用户接收到具有相对较多数量的订户的存在信息的订阅请求的情况下，存在服务器将内容订户引导到组播传输信道。 内容订户又通过组播传输信道访问存在信息。 通过将内容订户引导到组播传输信道，存在服务器节省与存在系统相关联的连接资源，从而允许存在系统以相对较高的速度和效率水平分发呈现信息。 此外，通过将内容订阅者指向多播传输信道，存在服务器将与向存在系统添加新订户相关联的成本降至最低。

    METHOD AND APPARATUS FOR HANDLING IPV4 DNS PTR QUERIES ACROSS IPV4 AND IPV6 NETWORKS
    9.
    发明申请
    METHOD AND APPARATUS FOR HANDLING IPV4 DNS PTR QUERIES ACROSS IPV4 AND IPV6 NETWORKS 审中-公开
    用于处理IPV4和IPV6网络的IPV4 DNS PTR查询的方法和设备

    公开(公告)号：WO2005117375A2

    公开(公告)日：2005-12-08

    申请号：PCT/US2005017238

    申请日：2005-05-16

    Applicant: CISCO TECH IND ,  SATAPATI SURESH

    Inventor： SATAPATI SURESH

    IPC: H04L12/66 ,  H04L29/06 ,  H04L29/12

    CPC classification number: H04L29/12066 ,  H04L29/12358 ,  H04L29/12556 ,  H04L61/1511 ,  H04L61/251 ,  H04L61/2585 ,  H04L69/16 ,  H04L69/167

    Abstract: Disclosed are methods and apparatus for efficiently and reliably handling DNS (domain name service) PTR (pointer) queries and replies across IPv4 and IPv6 networks. In general terms, an IPv4 DNS PTR query which is sent by an IPv4 device to an IPv6 DNS Server is intercepted or received (302), for example, by a network device configured with NAT-PT and DNS-ALG. The received IPv4 DNS PTR query is then translated into two different types of IPv6 DNS PTR queries: a query having an "IP6.INT" string (304) and a query having an "IP6.ARPA" string (306). Both types of IPv6 queries are then sent to the IPv6 destination DNS Server (304, 306). Whether the DNS sends an IP6.ARPA or an IP6.INT type reply or both types of replies back, a valid reply is identified (if present) and then translated before reaching the IPv4 device.

    Abstract translation: 公开了用于有效和可靠地处理跨IPv4和IPv6网络的DNS（域名服务）PTR（指针）查询和回复的方法和装置。 一般来说，例如由配置有NAT-PT和DNS-ALG的网络设备拦截或接收由IPv4设备发送到IPv6 DNS服务器的IPv4 DNS PTR查询（302）。 接收的IPv4 DNS PTR查询然后被转换成两种不同类型的IPv6 DNS PTR查询：具有“IP6.INT”字符串（304）的查询和具有“IP6.ARPA”字符串（306）的查询。 然后将两种类型的IPv6查询发送到IPv6目标DNS服务器（304,306）。 DNS是否发送IP6.ARPA或IP6.INT类型的回复或两种类型的回复，确定有效的回复（如果存在），然后在到达IPv4设备之前进行翻译。

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