| 摘要 |
<p>Traffic differentiator systems [112] for network devices and related methods are disclosed that determine difference packets [122] from multiple packet streams. Certain embodiments are configured to receive two streams of packets [108, 110; 401, 431] with one stream being a processed version of another stream and then to determine difference packets [122] within a lookup time window [114] that is, for example, associated with a processing time for the second stream [110; 431] to be a processed version of the first stream [108; 401]. The streams of packets [108, 110; 401, 431] can be associated with ingress and egress packets for a network device [102], and the difference packets [122] and related statistical information can be used to determine packets that are removed, added, and/or modified by the network device. For certain further embodiments, traffic differentiator systems [112] are disclosed that include automatic port order determination. In the learning mode of operation, the packet difference processor [120] automatically determines a port order representing whether the first stream of packets [401] for the first port or the second stream of packets [431] for the second port represents a first in time version of received packets. In the normal mode of operation, the packet difference 20 processor [120] uses the port order determination to facilitate determination of difference packets [122] between the first stream of packets [401] and the second stream of packets [431].</p> |
