Card, Adapter Card, and Port Command Reference
Page 104 7705 SAR OS Interface Configuration Guide
For ATM, this command enables or disables ATM cell-level payload scrambling/descrambling using
the x43+1 polynomial as defined in ITU-T I.432.1. Scrambling is enabled by default for the ATM
path/channel. This scrambling is done in addition to SONET/SDH frame scrambling/descrambling,
which is always enabled in the framer.
The no form of this command disables scrambling.
Default scramble
signal-label
Syntax signal-label value
no signal-label
Context config>port>sonet-sdh>path
Description This command sets the C2 byte value. The purpose of this byte is to communicate the payload type
being encapsulated by SONET framing.
Default 0xcf
Parameters value — specifies the C2 byte value, expressed as a decimal integer or a hexadecimal value
Values
1 to 254 or 0x01 to 0xfe
trace-string
Syntax trace-string [trace-string]
no trace-string
Context config>port>sonet-sdh>path
Description This command specifies that a J1-path-trace that identifies the circuit be continuously inserted at
source. The specified trace string can be checked against the expected value by the receiver. If no
trace string is entered, a null string is used.
The no form of this command resets the string to its default.
Default
The default J1 value is ALU 7705 SAR. The value does not change when the encap-type changes. The J1
string contains all zeros for a non-provisioned path.
Parameters trace-string — specifies an alphanumeric string value. If the string contains spaces, enclose it in
quotation marks.
Values
1 to 62 bytes for SONET or 1 to 15 bytes for SDH
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