Finisar Surveyor manual Stream Modes, Bursts, Stream Mode Rate Setting

Transmit Specification 8

Transmit Specifications

Stream Modes

An interpacket gap for a frame can be set in three different ways; Packet Gap, Frame Rate and Traffic Rate. The stream mode defines the rate at which packets are transmitted from a module. The modes are as shown in Table 8-4 below:

	Table 8-4. Stream Modes
Stream Mode	Rate Setting
Packet Gap	The rate is set as an interval of time between packets. The interval
	can be set in seconds, milliseconds, or microseconds.
Frame Rate	The rate is set in number of frames per second.
Traffic Rate	The rate is set as a percentage of the maximum speed (10Mbps,
	100Mbps, or 1000Mbps) for the module.

Bursts

Bursts cause a stream to be transmitted again and again. Check the Bursts box to send a burst of packets with the stream. Set Burst Count to the number of times to send the frame. An interval (packet gap) can be set between bursts in the Burst Gap field.

The following example shows how bursts and burst timing work. Assume three streams are defined as follows:

Stream 1; Packet Gap=100msec., No burst

Stream 2; Packet Gap=20msec, Burst Count=3, Burst

Gap=4msec

Stream 3; Packet Gap=5msec., No burst

The example results in the following:

Transmit Stream 1

Wait 100msec

Transmit Stream 2

Wait 20msec

Transmit Stream 2

Wait 20msec

Transmit Stream 2

Wait 24msec

Transmit Stream 3

Wait 5msec

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