Finisar Surveyor, User Manual

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8-7
Transmit Specification
Transmit Specifications
8
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:
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
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.