System information

Configuring Packet Over SONET
14-11
Optionally Disabling SONET Payload Scrambling
SONET optical interface signals use binary line encoding, and therefore must be
scrambled to assure an adequate number of transitions of zeros to ones, and ones to
zeros.
If the remote SONET device does not support scrambling, payload scrambling may
need to be disabled.
Payload scrambling is enabled by default on the POS interface. To disable payload
scrambling, use the no pos scramble command in Interface Configuration mode, as
shown below:
BSR(config-if)#no pos scramble
pos flag j0 16byte Defines 16 byte section
trace message
undefined Text string containing
the 16 byte
sequence.
pos flag j1 16byte Defines 16 byte path trace
message
undefined Text string containing
the 16 byte
sequence.
pos flag j1 64byte Defines 64 byte path trace
message
undefined Text string containing
the 64 byte
sequence.
pos flag j1 Defines hexadecimal path
single byte message
0x0 Hexadecimal value.
pos flag s1 Identifies the timing source
for SONET frame
synchronization
0x0 Hexadecimal value.
Note: When payload scrambling is enabled, both sides of the connection
must be using the same scrambling algorithm.
Table 14-4 SONET Commands
Command Description Default Value