Patent ID: 9455895
Filing Date: 2016-09-27
CPC Classification: H04L

Claim Text:
1. An apparatus comprising: a test case device configured to transmit a data frame; a first switch including a first verification port and a second verification port, wherein the first switch is configured to receive the data frame from the test case device and to append a sequence number to the data frame; and a second switch including a first switch port coupled to the first verification port and a second switch port coupled to the second verification port, wherein each of the first and second switch ports is configured to receive the data frame from the first switch and output an egressed data frame to the first switch, wherein the first switch transmits the data frame into one of the first and second switch ports and determines, after receiving the data frame from the test case device and prior to sending the data frame to the second switch, at least one of the first and second verification ports to receive the egressed data frame from at least one of the first and second switch ports based on a switch state of the second switch, and wherein the first switch verifies at least a portion of content of the egressed data frame when a sequence number of the egressed data frame matches the sequence number of the data frame.