Abstract: Host computers in a distributed open standards-based computing system are configured for performing application operations and management operations, including sending and receiving configuration management messages according to a web based protocol across an Internet Protocol. Each host computer includes an application resource configured for executing the corresponding application operations, for example initiating a unified messaging session for a unified messaging subscriber, providing text to speech services, providing short message service operations, etc., in response to an application request received from the open standards interface. Each host computer also includes a management resource configured for executing prescribed configuration management operations based on a corresponding received management command from the open standards interface.
Type:
Grant
Filed:
March 27, 2001
Date of Patent:
July 25, 2006
Assignee:
Cisco Technology, Inc.
Inventors:
Steven J. Martin, Ryan Alan Danner, Tin Thanh Dang
Abstract: A wireless communication system includes a radio node controller in an SS7 network that generates SS7 formatted information for transport in an Asynchronous Transfer Mode Permanent Virtual Circuit in response to communications with a mobile unit. A signaling gateway receives the SS7 formatted information on the Asynchronous Transfer Mode Permanent Virtual Circuit. The signaling gateway translates the SS7 formatted information into Internet Protocol information and maps the Asynchronous Transfer Mode Permanent Virtual Circuit to stream control transmission protocol endpoint and stream. A mobile switching center in an Internet Protocol network receives the Internet Protocol formatted information on the Stream Control Transmission Protocol stream and performs further processing thereof.
Abstract: Methods and apparatus are disclosed for defining and using associative memory entries with force no-hit and priority indications of particular use in implementing policy maps in communication devices. In one use, a set of entries is determined based on a policy map with a force no-hit indication being associated with one or more of the entries. Additionally, programmable priority indications may be associated with one or more of the entries, or with the associative memory devices, associative memory banks, etc. The force no-hit indications are often used in response to identified deny instructions in an access control list or other policy map. A lookup operation is then performed on these associative memory entries, with highest matching result or results identified based on the programmed and/or implicit priority level associated with the entries, or with the associative memory devices, associative memory banks, etc.
Type:
Grant
Filed:
July 29, 2003
Date of Patent:
July 25, 2006
Assignee:
Cisco Technology, Inc.
Inventors:
Venkateshwar Rao Pullela, Dileep Kumar Devireddy, Bhushan Mangesh Kanekar, Stephen Francis Scheid
Abstract: Enforcement firewalls and other security devices are located on a network for a given source node and destination node. Nodes in the network topology are programmatically identified as being part of a non-looping communication path between the source node and the destination node. These nodes may be part of a path closure set. Security devices that are part of the path closure set are identified as the enforcement security devices for the given source and destination node.
Type:
Grant
Filed:
November 30, 2001
Date of Patent:
July 25, 2006
Assignee:
Cisco Technology, inc.
Inventors:
Shigang Chen, Partha Bhattacharya, Liman Wei
Abstract: Maintaining session connectivity without termination when a mobile node is assigned a new layer-3 address upon moving from a old location to a new location. Routers between the mobile node and correspondent node are configured to perform network address translation (NAT) such that both the nodes can potentially use the old IP address in communicating with each other, and yet the packets are routed accurately using the new layer-3 address. As a result, the session may not be terminated at either of the nodes when the mobile node moves.
Abstract: A Time-Based Service Monitoring mechanism for monitoring Service Level Agreements (SLAs) over specific time intervals is described. To provide for the time-based monitoring of service, data is received for defining one or more tests for monitoring the level of network service that is being provided to a particular customer. Based on the received data, information is created and stored that defines a specific time range for when the one or more tests are to be enforced. The one or more tests are distributed to one or more agents that are configured to communicate with devices that are associated with the network. The devices are then configured to perform the one or more tests within the specific time range. Based on the results, the customer is provided information indicating whether they are receiving the level of service that has been guaranteed by the service provider over the specific time intervals.
Type:
Grant
Filed:
November 30, 2000
Date of Patent:
July 25, 2006
Assignee:
Cisco Technology, Inc.
Inventors:
Karen Ann Bradley, Christian Lemler, Amrit C. Patel, Ray Mein Lau
Abstract: A method for handing off a call between networks includes monitoring a quality of a first link between a mobile station and a wireless local area network (WLAN) when the mobile station is actively connected with the WLAN on a call and monitoring a quality of a second link between the mobile station and a cellular network when the mobile station is actively connected with the WLAN on the call. The method also includes handing off the call from the WLAN to the cellular network when the quality of the first link is less than a handoff trigger threshold for a drop count duration and when the quality of the second link is greater than a minimum cellular link quality threshold.
Type:
Grant
Filed:
September 12, 2003
Date of Patent:
July 25, 2006
Assignee:
Cisco Technology, Inc.
Inventors:
Ramanathan T. Jagadeesan, Bich Tu Nguyen
Abstract: A method and apparatus for virtual application of features to electronic messages is disclosed. When a device applies a set of features to an electronic message, one or more of the features may be virtually applied instead of actually applied. For example, instead of encrypting a payload portion of a packet and adding an encryption header, the packet may not be encrypted. However, an appropriate encryption header may still be included in the packet such that the packet appears to have been encrypted when other features are applied. Prior to sending the packet, the payload portion is actually encrypted, such as by using a hardware accelerator. Some implementations may use a dual processor router, in which the input/output processor controls the hardware accelerator, the routing processor performs the virtual application of a feature, and prior to sending the packet the input/output processor actually applies the virtually applied feature.
Type:
Grant
Filed:
April 30, 2002
Date of Patent:
July 25, 2006
Assignee:
Cisco Technology, Inc.
Inventors:
Karthik M. Sadhasivam, Eric M. Trehus, Anders K. Fung, Bin Liang, Nicholas R. Leavy
Abstract: A method and apparatus are provided for optimizing retrieval of network resources. In one embodiment, a method of optimizing access to a network resource is implemented in a computer program executed by a router, cache server, or proxy server. A network resource that contains one or more embedded symbolic host name references is received. A network address corresponding to each of the embedded symbolic host name references is determined. A modified copy of the network resource is created and stored; in the modified copy, a network address is substituted for each corresponding embedded symbolic host name reference. Thereafter, the modified copy of the network resource in responding to all subsequent client requests for the network resource, thereby greatly reducing the required number of network address lookup operations. In one specific embodiment, IP addresses are determined using DNS queries for the hostname portion of all URLs that are embedded in a Web page using image, applet, object, or embed tags.
Abstract: A method for providing supplementary services in a packet voice network. The method includes the steps of receiving a list of information elements from a sending station and then inserting the list into a call control message. The message is inserted in such a manner as to ensure that any supplementary services information included in the information elements is preserved. In addition locally significant messages are included in a globally significant message so any supplementary services information in the locally significant messages is preserved. After the supplementary services information is preserved, the messages are sent to a receiving station. A network device operable to provide this functionality is also discussed.
Abstract: In a network system for transporting GFP-encapsulated Fibre Channel/FICON data across a SONET/SDH transport network between two Fibre Channel/FICON ports, a transport interface for one Fibre Channel/FICON port intelligently allocates the amount of buffers for receiving Fibre Channel/FICON data from the other Fibre Channel/FICON port by determining the latency of travel across the SONET/SDH transport network. The first transport interface inserts a special latency instruction message into the Fibre Channel/FICON data before encapsulation in a GFP frame. After transport across the SONET/SDH network, the receiving second transport interface immediately sends the special latency instruction message back across the SONET/SDH transport network to the first transport interface which times the return of the special latency instruction message. From the time interval, the first transport interface can determine the latency of the SONET/SDH transport network and allocates the amount of buffers appropriately.
Type:
Application
Filed:
January 14, 2005
Publication date:
July 20, 2006
Applicant:
Cisco Technology, Inc.
Inventors:
Ganesh Sundaram, John Diab, Hitesh Amin, Thomas Ryle
Abstract: A system and method allowing control of VoIP communications by configuring a Network Address Translator (NAT) is provided. In a first NAT configuration, such a port-restricted NAT, peer-to-peer Voice over Internet Protocol (VoIP) communications are permitted between a VoIP originator and a receiver. In a second NAT configuration, such as a symmetrical NAT, peer-to-peer communications are not possible without further cooperation of the NAT. In this manner, an entity that has control of the NAT, such as an ISP, is able to have a degree of control over traffic using network resources such as bandwidth.
Abstract: A method and system for managing communication in an emergency communication network is described. The emergency communication network receives a plurality of radio messages from a plurality of channels. The incoming radio messages sometimes overlap in time. Incoming radio messages can be prioritized and played back on the basis of the priority and the time of receipt. In case of overlap of the incoming radio messages in time, the radio message with the highest priority is played first, while the remaining radio messages are stored in a queue. The queue is formed again on the basis of priority. The stored radio messages are played subsequent to the completion of the radio message with the higher priority.
Abstract: A method and system for representing a low-order connection and a high-order connection as a single circuit are disclosed. The method includes creating a low-order listener object and a low/high listener object at each end point of the low-order connection and creating a high-order listener object at each end point of the high-order connection. The low/high listener objects are matched with the high-order listener objects to create a link and represent the connections as a single circuit.
Type:
Application
Filed:
January 19, 2005
Publication date:
July 20, 2006
Applicant:
Cisco Technology, Inc.
Inventors:
Pradeep Singh, Joseph Marchionni, David Friedman
Abstract: Disclosed are, inter alia, methods, apparatus, data structures, computer-readable medium, mechanisms, and means for merging indications of matching items of multiple groups and possibly associated with skip conditions to identify winning entries of particular use for implementing access control lists. Indications are received typically from an associative memory bank indicating which locations were matched during a lookup operation. Each of the entries is typically associated with one or more hierarchical groups and a skip or no-skip condition. The matching entries are merged to identify one or more wining entries, these being matching entries not in a group that is skipped. A group is typically skipped if the highest priority matching entry of the particular group is associated with a skip condition. A priority encoder can be used to identify a single highest priority winning entry from the winning entries.
Type:
Grant
Filed:
October 22, 2003
Date of Patent:
July 18, 2006
Assignee:
Cisco Technology, Inc.
Inventors:
Philip Ngai, Monica Joshi, David Michael Thornburg, Hyesook Lim
Abstract: A method and system for transmitting traffic having disparate rate components includes receiving a plurality of traffic streams. Each traffic stream includes a first component and a reduced rate second component associated with the first component. The first components of the traffic streams are segmented into successive cells. The second components of the traffic streams are distributed between a defined set of the cells for in-band transmission of the second components.
Type:
Grant
Filed:
September 3, 1999
Date of Patent:
July 18, 2006
Assignee:
Cisco Technology, Inc.
Inventors:
Barry W. Field, Kenneth M. Buckland, Riccardo G. Dorbolo
Abstract: Methods and apparatus providing information about characteristics associated with a network are described. A network node associated with a client for selecting a server that can best provide content to a client transmits a request for a response. A plurality of content servers or content routing agents receive requests corresponding to the request from the network node associated with the client. The content servers provide a response and fragment and/or pad datagrams associated with the response. The content servers transmit these fragmented and/or padded datagrams to the network node associated with the client. The network node associated with the client can reassemble and/or trim the received datagrams and identify as optimal the server that first completes transmission of the response.
Abstract: A method and system for providing voice calls in a macro wireless network includes providing at a router of the micro wireless network an interface for communication with a service node of a macro wireless network coupled to the micro wireless network. The interface is of a same type as is used by a radio access network of the macro wireless network to communicate with the service node. A real-time protocol communication path is established from the interface through a voice module of the service node to a public switch telephone network. Voice traffic is communicated to the public switch telephone network through the interface and the real-time protocol path.
Type:
Grant
Filed:
November 18, 2002
Date of Patent:
July 18, 2006
Assignee:
Cisco Technology, Inc.
Inventors:
Balaji S. Holur, Michael L. Shannon, Kenneth W. Davidson
Abstract: Methods and apparatus for establishing communication between a Mobile Node and a Home Agent are disclosed. The Home Agent receives a registration request packet from the Mobile Node, the registration request packet including an IP source address and a Home Agent address. The Home Agent then detects from the registration request packet when network address translation has been performed. When it has been detected that network address translation has been performed, a tunnel is set up between the Home Agent address and the IP source address.
Type:
Grant
Filed:
December 28, 2001
Date of Patent:
July 18, 2006
Assignee:
Cisco Technology, Inc.
Inventors:
Gaetan Feige, Rabih A. Dabboussi, Kent K. Leung, Milind M. Kulkarni
Abstract: Each network device includes a monitoring agent configured for generating a notification message based upon an event where device operations exceed prescribed monitored parameters. A troubleshooting resource at the customer premises requests selected device state attributes from the network device and that are forwarded to a data collection resource that serves as an interface to the manufacturer's back-end infrastructure. The troubleshooting system accesses databases that store the configuration information for the affected network device, and uses the configuration information for accessing problem/resolution information. The rules based troubleshooting system, upon correlating the databases for the problem/resolution information, provides a service notification message as a response to the event, and selectively includes the problem/resolution information for the network device.
Type:
Grant
Filed:
April 12, 2002
Date of Patent:
July 18, 2006
Assignee:
Cisco Technology, Inc.
Inventors:
John Baekelmans, Erik De Kegel, Dean Mc Daniel, Keith Sinclair