• Tag : truncation

 
 

Selective Packet Truncation in Tap Aggregation

Selective Packet Truncation in Tap Aggregation Packet Truncation in tap aggregation mode allows tapped traffic to be truncated to a smaller size before being transmitted. It can be used to reduce the amount of traffic received by analysis devices, if only the headers are to be analyzed while the payload of the packets is irrelevant or unwanted for practical or legal reasons. Truncation is applied either at the tap or tool port. This means that all traffic either arriving from a source or sent to a tool is subject to the truncation setting. In practice, it may be desirable to...
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TapAgg truncation

EOS-4.18.1F added truncation capability for Tap Aggregation, which allows tapped traffic to be truncated to a smaller size before being transmitted. It can be used to reduce the amount of traffic received by analysis devices, if only the headers are to be analyzed while the payload of the packets is irrelevant or unwanted for practical or legal reasons. An example could be the analysis of packets in a video streaming network where packets would typically have large payloads that are not necessarily useful for the analyzers. Packet truncation can be configured on tap or tool ports: Truncation configured on a...
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Truncation on Tap and Tool Ports

Introduction EOS supports truncation on ingress and egress. In this article we will focus on how it can be applied in tap aggregation exclusive mode, on the Arista 7150 line of switches. Please refer to the supported features matrix for other hardware platforms. Truncation is the ability to remove unwanted or unneeded bytes from the packet at a configurable or fixed starting byte position, it may also be referred to as ‘Packet Slicing’. This is useful in situations where the data of interest is contained within the headers or early in the packet payload. It can be used to remove...
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