Agilent Technologies 622Vu Advisor, User Manual

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4.2 Configuring an OC-12c/STM-4c
Device
Configuration of an OC-12c/STM-4c device involves setting options specific to
the physical interface. The Options tab looks like this:
Indicate the type of framing the
card should recognize on input,
and use when sending traffic.
Mark the physical line
options you want.
Specify the options as follows:
Option Description
Framing Method used to synchronize cell transmissions: SONET or its
European equivalent, SDH (Synchronous Digital Hierarchy). Both
transmit at 622 Mb/s. The SONET C2 overhead octet is hex 13 on
transmit, and the SDH C2 overhead octet is hex 13. On the receive
side, the analysis device checks for hex 13.
For capture processing, make sure to use a setting that’s compatible
with the sending device (or the result will be no data).
Enable Cell Scrambler Indication of whether to scramble the payload data at transmission, and
unscramble payload data when received. Mark the check box to enable
this scramble/unscramble feature.
For capture processing, make sure to use a setting that’s compatible
with the sending device. Most network devices enable scrambling.
Generate HEC Coset Indication of whether to enable the x6+x4+x2+1 polynomial to be
XORed with the calculated HEC. Mark the check box to enable this
feature.
For capture processing, make sure to use a setting that’s compatible
with the sending device.
As necessary, refer to page 60 for instructions related to the Operations Mode
tab.
4: Configuring Analysis Devices
4.2 Configuring an OC-12c/STM-4c Device
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