Understanding speed conversion
Speed conversion creates network visibility. The Matrix can convert the speed and interface of a network link to something compatible with analysis tools. Analysis tools can then access traffic they cannot natively inspect.
 
Use speed conversion to connect slower tools to faster networks, or the opposite. Speed conversion allows network traffic to ingress the Matrix at one speed and egress to tools at a different speed.
 
 
Speed conversion also provides media conversion. For example, network port traffic arriving on copper cable can leave a tool port as an optical signal. Conversely, optical can be converted to copper. Media conversion is necessary when the medium between the network and a tool is mismatched. Media conversion is automatic, so connecting a network port to a tool port is all that is required, provided the SFP/SFP+ modules are correct and the ports are licensed.
 
 
Converting a 10 Gb link to a 1 Gb link poses a risk. The risk of dropping packets greatly increases any time a faster link is converted to a slower link. Depending on the utilization of the faster link, the slower link might require packet trimming, load balancing, or filtering, to avoid port oversubscription.
 
 
Converting a 1 Gb link to a 10 Gb link does not pose any risks. A slower link can usually be converted to a faster link without special considerations, as the throughput can never be greater than the maximum available egress bandwidth. The only exception occurs when network link aggregation is used to aggregate more than ten 1 Gb network ports into one 10 Gb tool port.