Method and system for passive quality of service monitoring of a network
AssigneeNetworks Associates Technology, Inc.
InventorZbigniew Sufleta
Life of this patent
Estimating the term…
Abstract
A method and system for passive quality of service monitoring of a network are described. In one embodiment, a number of signatures are extracted from a number of network packets at a number of monitoring points. In addition, at least one quality of service parameter is generated based upon the signatures.
Claims41
A method for passive quality of service monitoring of a network, the method comprising:
- creating a plurality of signatures from a plurality of network packets transmitted through the network at a plurality of monitoring points, each signature comprising at least a portion of constant content in a corresponding packet, a checksum calculated from a payload in the corresponding packet, and a time-stamp;
- and
- generating at least one quality of service parameter for the network based upon the plurality of signatures.
A method for passive quality of service monitoring of a network, the method comprising:
- creating a plurality of ingress signatures from a plurality of network packets entering the network at an ingress point;
- creating a plurality of egress signatures from the plurality of network packets at an egress point, the plurality of network packets having traversed the network from the ingress point to the egress point;
- and
- generating at least one quality of service parameters for the network based upon the plurality of ingress signatures and the plurality of egress signatures, wherein each signature comprises at least a portion of constant content in a corresponding packet, a checksum calculated from a payload in the corresponding packet, and a time-stamp.
An article of manufacture including one or more computer-readable media with executable instructions therein, which when executed by a processing device causes the processing device to:
- create a plurality of signatures from a plurality of network packets transmitted through the network at a plurality of monitoring points, each signature comprising at least a portion of constant content in a corresponding packet, a checksum calculated from a payload in the corresponding packet, and a time-stamp;
- and
- generate at least one quality of service parameters for the network based upon the plurality of signatures.
An article of manufacture including one or more computer-readable media with executable instructions therein, which when executed by a processing device causes the processing device to:
- create a plurality of ingress signatures from a plurality of network packets entering the network at an ingress point;
- create a plurality of egress signatures from the plurality of network packets at an egress point, the plurality of network packets having traversed the network from the ingress point to the egress point;
- and
- generate at least one quality of service parameters for the network based upon the plurality of ingress signatures and the plurality of egress signatures, wherein each signature comprises at least a portion of constant content in a corresponding packet, a checksum calculated from a payload in the corresponding packet, and a time-stamp.
A system for passive quality of service monitoring of a network, the system comprising:
- means for creating a plurality of signatures from a plurality of network packets transmitted through the network at a plurality of monitoring points, each signature comprising at least a portion of constant content in a corresponding packet, a checksum calculated from a payload in the corresponding packet, and a time-stamp;
- and
- means for generating at least one quality of service parameters for the network based upon the plurality of signatures.
A system for passive quality of service monitoring of a network, the system comprising:
- means for creating a plurality of ingress signatures from a plurality of network packets entering the network at an ingress point;
- means for creating a plurality of egress signatures from the plurality of network packets at an egress point, the plurality of network packets having traversed the network from the ingress point to the egress point;
- and
- means for generating at least one quality of service parameters for the network based upon the plurality of ingress signatures and the plurality of egress signatures, wherein each signature comprises at least a portion of constant content in a corresponding packet, a checksum calculated from a payload in the corresponding packet, and a time-stamp.
A system for passive quality of service monitoring of a network, the system comprising:
- a plurality of probes to create a plurality of signatures from a plurality of network packets transmitted through the network at a plurality of monitoring points, each signature comprising at least a portion of constant content in a corresponding packet, a checksum calculated from a payload in the corresponding packet, and a time-stamp;
- and
- a correlation device to generate at least one quality of service parameter for the network based upon the plurality of signatures.
A system for passive quality of service monitoring of a network comprising:
- a first probe to create a plurality of ingress signatures from a plurality of network packets entering the network at an ingress point;
- a second probe to create a plurality of egress signatures from the plurality of network packets at an egress point, the plurality of network packets having traversed the network from the ingress point to the egress point;
- and
- a correlation device to generate at least one quality of service parameters for the network based upon the plurality of ingress signatures and the plurality of egress signatures, wherein each signature comprises at least a portion of constant content in a corresponding packet, a checksum calculated from a payload in the corresponding packet and a time-stamp.
Dependencies are inferred from the claim text.