Traffic item impairment emulation

摘要

An impairment unit, method, and machine readable storage media for emulating network impairments. A first network interface may receive network traffic including a plurality of received packets. A classifier may determine an impairment class of each received packet based on test information contained within a payload portion of each received packet, the impairment class of each received packet being one of a plurality of impairment classes, each impairment class uniquely associated with a corresponding one of a plurality of impairment profiles. An impairment engine may impair each of the plurality of impairment classes in accordance with the corresponding impairment profile to provide impaired network traffic. A second network interface may transmit the impaired network traffic to the network.

主权项

1. An impairment unit, comprising:
a first network interface to receive network traffic from a network, the received network traffic comprising a plurality of received packets; a classifier configured to determine an impairment class of each received packet, the impairment class of each received packet being one of a plurality of impairment classes, each impairment class uniquely associated with a corresponding one of a plurality of impairment profiles that define one or more impairments to be applied to packets of the associated impairment class, the classifier comprising:
a signature matcher to locate a test information block within the payload of each received packet, andan extractor to extract a portion of the test information block indicative of the impairment class of each received packet; an impairment engine configured to impair each of the plurality of impairment classes in accordance with the corresponding impairment profile to provide impaired network traffic; and a second network interface to transmit the impaired network traffic to the network.