Figure 42. Port Rate Settings - Advantech B&B SmartWorx ESWGP506-2SFP-T User Manual

Destination Lookup Failure is also called DLF Message, which means that a packet type table does not
match the MAC address table, and the message does not belong to broadcast or multi broadcast
message. The switch handles such DLF messages the same way it handles the acceptance of broadcast
messages.
Bandwidth
Bandwidth is a rate of data transfer related to channel capacity for communication. Rate limiting is used
to control the rate of traffic sent or received on a network interface. Traffic that is less than or equal to
the specified rate is sent, whereas traffic that exceeds the rate is dropped or delayed.
Rate limiting is performed by policing (discarding excess packets), queuing (delaying packets in transit)
or congestion control (manipulating the protocol's congestion mechanism). Policing and queuing can be
applied to any network protocol. Congestion control can only be applied to protocols with congestion
control mechanisms, such as the Transmission Control Protocol (TCP).

Figure 42. Port rate settings

NOTE:
I. The switch monitors all types of packets, but all packets have the same latency value.
2. The Switch will drop packets at a limited rate when flow control is disabled.
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