METRODATA NetTESTER FAMILY USER MANUAL
76-02-107 Rev.A
Page 107 of 133
TWAMP SETUP
Dscp 0
Message length 44
pAdding Pseudo-Random
transmit Rate 1s
receive timeOut 3s
14.3.4.1 DSCP
Menu Tree: Main Set-Up /
P
erf Monitoring / [peer] / T
W
AMP Setup /
D
SCP
The DSCP parameter defines the priority to be used by the TWAMP messages.
14.3.4.2 Message Length
Menu Tree: Main Set-Up /
P
erf Monitoring / [peer] / T
W
AMP Setup /
M
essage Length
The message length parameter defines the length of the TWAMP payload. The
minimum value is 44 bytes. The packet will also include the normal UDP overhead,
and so will be greater than the selected value by 46 bytes plus any VLAN tags
(minimum of 90 bytes).
Setting the message length in excess of 44 bytes will increase the packet size, with
the additional padding filled as defined by the padding parameter.
14.3.4.3 Padding
Menu Tree: Main Set-Up /
P
erf Monitoring / [peer] / T
W
AMP Setup / P
A
dding
The padding parameter defines the contents of the additional payload padding
added when the message length is increased beyond the minimum. The padding
options are:
Pseudo Random
The payload will be filled with pseudo-random bytes
Zero
The payload will be filled with zeros
14.3.4.4 Transmit Rate
Menu Tree: Main Set-Up /
P
erf Monitoring / [peer] / T
W
AMP Setup / Transmit
R
ate
The transmit rate defines the rate at which TWAMP packets will be transmitted. The
options are
1s
Transmit packet once per second
100mS
Transmit a packet once every 100mS, or 10 per second.
14.3.4.5 Receive Timeout
Menu Tree: Main Set-Up /
P
erf Monitoring / [peer] / T
W
AMP Setup / Receive Time
O
ut
If a transmitted packet has not been received within the receive timeout period it is
classed as a lost packet.
