Process and system for capture and analysis of HFC based packet data
AssigneeADC Broadband Access Systems, Inc.
InventorsDaniel J. Byron, Howard Ngai, David A. Cardin, Milton Fernandes
Life of this patent
Estimating the term…
Abstract
A process for selecting for analysis data units from multiple threads of traffic through a single data switch is provided. The process includes capturing all data units of one thread of traffic when said thread is selected by a system administrator, encapsulating data units matching first criteria with identification and forwarding information, and triggering on said captured data units according to second criteria selectable during said process. The process further includes filtering said captured data units according to third criteria selectable during said process and forwarding said filtered data units to a data unit analyzer.
Claims19
A process for selecting for analysis data units from multiple threads of traffic through a single data switch, said process comprising:
- (a) capturing all data units of one thread of traffic when said thread is selected by a system administrator;
- (b) encapsulating data units matching first criteria with identification and forwarding information;
- (c) triggering on said captured data units according to second criteria selectable during said process;
- (d) filtering said captured data units according to third criteria selectable during said process;
- and
- (e) forwarding said filtered data units to a data unit analyzer.
A system for analyzing data units from multiple threads of traffic through a data switch, comprising:
- (a) means for capturing all data units of one thread of traffic when said thread is selected by a system administrator;
- (b) means for encapsulating data units matching first criteria with identification and forwarding information;
- (c) means for triggering on said captured data units according to second criteria selectable during data capture;
- (d) means for filtering said captured data units according to third criteria selectable during data capture;
- and
- (e) means for forwarding said filtered data units to a data unit analyzer.
A system for analyzing data units from multiple threads of traffic through a data switch, comprising:
- a capture engine having a capture switch mechanism, and a preliminary filter, and
- an analyzer having a state machine, a filter mechanism and a trigger mechanism,
- whereby said capture engine sets said capture switch mechanism to capture data packets and filter said packets with said preliminary filter,
- said analyzer engine further filtering said data packets according to the state of the state machine and in response to said filter mechanism and said trigger mechanism.
Dependencies are inferred from the claim text.