Abstract: Storing subscriber state information is disclosed. It is determined whether a subscriber state information associated with a DHCP lease communication is stored in a persistent storage. If the subscriber state information is not stored in the persistent storage, a shortened time that is shorter than a normal DHCP lease time is included in the DHCP lease communication.

Abstract: In a communication network or system, cables that interconnect systems or subsystems are provided with RFID tags embedded or affixed at least at one endpoint of each cable. An installed or portable RFID reader in the proximity of an RFID tag of a given cable enables a unique cable endpoint identifier contained in the RFID tag to be read. The identifier is combined with a unique port identifier of the port to which the cable endpoint is attached at the message is sent to a far-end system or subsystem connected to the other end of the cable. That system reads the message and the information contained therein along with a unique port identifier of its own port connected to the given cable, enables positive confirmation of the communicative connection between the two ports and also the cable providing the connection. It also enables communication of the physical routing information to an operations support system for cable management.

Abstract: The invention is directed to encoding information in radio frequency identifier (RFID) tags disposed on cabling interconnects for the purpose of easier identification of the cables, especially when ascertaining the physical routing and connectivity of the cables. The encoding can be performed before, during, or after installation of the cable. The encoded information can then be read at any time using an RFID reader, for example to identify the cable at various positions along it, thereby enabling easy determination of the routing of the cable.

Abstract: Techniques to ascertain physical cabling connections of electronic systems are provided for situations where there are numerous systems interconnected by a very large number of electrical or optical cables. A cable identifying code is inserted into a message sent from a local endpoint system to remote endpoint system over the identified cable. Each intermediate system that is in the interconnection path between the two endpoint systems of interest appends its code for the cable connected to the I/O port from which the message will egress that system and be sent to the next system along the path. The remote endpoint system receives the message which now contains codes for all the cables transited along the path, extract the codes, and thereby determines the exact cabling used in the interconnection of the two endpoint systems.

Abstract: A technique for configuring a pseudowire involves extending the functionality of the Dynamic Host Configuration Protocol (DHCP). In an embodiment, pseudowire configuration information is embedded into DHCP messages that are communicated between a customer edge (CE) device and a provider edge (PE) device and used to configure a pseudowire between the two devices. The pseudowire configuration information may include an indication of the pseudowire capabilities of the CE device, the types of pseudowires desired by the CE device, the types of pseudowire encapsulations supported by the CE device, the types of pseudowires that are to be configured, the pseudowire encapsulations that are to be used, and pseudowire labels. Pseudowire configuration information can be embedded into the options field of a DHCP message using a new option, using multiple new options, or by overloading an existing option.

Abstract: In a communication network or networked system, cables that interconnect systems or parts of a system are provided with RFID tags embedded at periodic intervals along their lengths. A network of GPS-enabled RFID readers with triangulation capabilities enables the determination of the physical routing of cables within an area of interest. It also enables communication of the physical routing information to an operations support system for cable management.

Abstract: In a communication network or system, cables that interconnect systems or subsystems are provided with RFID tags embedded or affixed at least at one endpoint of each cable. An installed or portable RFID reader in the proximity of an RFID tag of a given cable enables a unique cable endpoint identifier contained in the RFID tag to be read. The identifier is combined with a unique port identifier of the port to which the cable endpoint is attached at the message is sent to a far-end system or subsystem connected to the other end of the cable. That system reads the message and the information contained therein along with a unique port identifier of its own port connected to the given cable, enables positive confirmation of the communicative connection between the two ports and also the cable providing the connection. It also enables communication of the physical routing information to an operations support system for cable management.

Abstract: The invention is directed to encoding information in radio frequency identifier (RFID) tags disposed on cabling interconnects for the purpose of easier identification of the cables, especially when ascertaining the physical routing and connectivity of the cables. The encoding can be performed before, during, or after installation of the cable. The encoded information can then be read at any time using an RFID reader, for example to identify the cable at various positions along it, thereby enabling easy determination of the routing of the cable.

Abstract: In a communication network or networked system, cables that interconnect systems or parts of a system are provided with RFID tags embedded at periodic intervals along their lengths. A network of GPS-enabled RFID readers with triangulation capabilities enables the determination of the physical routing of cables within an area of interest. It also enables communication of the physical routing information to an operations support system for cable management.

Abstract: Techniques to ascertain physical cabling connections of electronic systems are provided for situations where there are numerous systems interconnected by a very large number of electrical or optical cables. A cable identifying code is inserted into a message sent from a local endpoint system to remote endpoint system over the identified cable. Each intermediate system that is in the interconnection path between the two endpoint systems of interest appends its code for the cable connected to the I/O port from which the message will egress that system and be sent to the next system along the path. The remote endpoint system receives the message which now contains codes for all the cables transited along the path, extract the codes, and thereby determines the exact cabling used in the interconnection of the two endpoint systems.

Abstract: A technique for configuring a pseudowire involves extending the functionality of the Dynamic Host Configuration Protocol (DHCP). In an embodiment, pseudowire configuration information is embedded into DHCP messages that are communicated between a customer edge (CE) device and a provider edge (PE) device and used to configure a pseudowire between the two devices. The pseudowire configuration information may include an indication of the pseudowire capabilities of the CE device, the types of pseudowires desired by the CE device, the types of pseudowire encapsulations supported by the CE device, the types of pseudowires that are to be configured, the pseudowire encapsulations that are to be used, and pseudowire labels. Pseudowire configuration information can be embedded into the options field of a DHCP message using a new option, using multiple new options, or by overloading an existing option.