Abstract: Examples of systems and methods for cataloging image-based backups are disclosed. In certain implementations, these systems and methods can obtain information about file system structure from a volume undergoing image-based backup. The systems and methods can generate a catalog of the file system structure that can be stored with the backup image. The systems and methods can generate a searchable index of the catalog so that users can search for files within the backup image without being required to manually mount the backup image containing the searched-for file. As a result, in certain embodiments, users advantageously can more quickly locate and restore files from image-based backups.

Abstract: The present invention provides a method for conveying information over a communication network such as a Digital Loop Carrier (DLC) network free of in-band signaling information for at least a portion of an established communication between at least two users so as to reduce the information error rate associated with the established communication. For communication links that support robbed-bit signaling (RBS), the RBS signaling is disabled to allow the communication link to be operated in a clear channel mode. When appropriate, operations can be switch from the clear channel mode back to the RBS mode. Embodiments are described for one-stage DLC systems having a local digital switch (LDS) connected to a remote terminal (RT) by a communication link conforming to either the TR-303 protocol or the TR-008 protocol. In addition, embodiments are described for two-stage DLC systems that also have a distance terminal (DT) connected to the RT by a second communication link.

Abstract: In a Broad Based Data System, one Manager System can control the actions of a plurality of Agent Systems. The Agent Systems communicate with the Manager System by sending trap messages. The Manager System ensures that no trap messages are lost by checking that a sequence number of each received trap message from a particular Agent System is one higher than a sequence number of a previously received trap message. If a missing sequence number is detected, the Manager requests re-transmittal of the message associated with that sequence number. In order to prevent flooding a Manager with an excessive number of trap messages from a particular Agent System, the Agent System can only send a given number, N of messages, before it is re-authorized to send more messages. In Applicants' specific embodiment, the authorization is in the form of an acknowledgment message. Trap messages representing alarm conditions are particularly important. Alarm conditions are saved as long as the alarm is active.