Interface Configuration
7750 SR OS Interface Configuration Guide
Page 263
scramble
Syntax
[
no
]
scramble
Context
config>port>sonet-sdh>path
Description
This command enables SONET/SDH payload scrambling.
Scrambling randomizes the pattern of 1s and 0s carried in a SONET frame. Rearranging or
scrambling the pattern prevents continuous strings of all 1s or all 0s and meets the needs of physical
layer protocols that rely on sufficient transitions between 1s and 0s to maintain clocking.
For ATM, this command enables or disables ATM cell-level payload scrambling/descrambling using
x43+1 polynomial as defined in ITU-T I.432.1. Scrambling is enabled by default for the ATM path/
channel. Note that 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
no scramble
signal-label
Syntax
signal-label
value
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 value in hex format.
Values
1 — 254 or 0x01 — 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 is inserted continuously at
source. This can be checked against the expected value by the receiver. If no trace string is entered
then a null string is used.
The
no
form of this command resets the string to its default.
Default
The default J1 value is Alcatel-Lucent XXX YYY (for example, Alcatel 7750 SR) where XXX is the
platform name, such as "7750" or "7450" or "7710", and YYY is the product name, such as "SR" or
Содержание 7750 SR OS
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Страница 8: ...Page 8 7750 SR OS Interface Configuration Guide List of Tables ...
Страница 10: ...Page 10 7750 SR OS Interface Configuration Guide List of Figures ...
Страница 14: ...Preface Page 14 7750 SR OS Interface Configuration Guide ...
Страница 16: ...Getting Started Page 16 7750 SR OS Interface Configuration Guide ...
Страница 184: ...Card MDA and Port Command Reference Page 184 7750 SR OS Interface Configuration Guide ...
Страница 417: ...Interface Configuration 7750 SR OS Interface Configuration Guide Page 417 4 5 SAP PVT 1 1 up up A ima2 ...
Страница 429: ...Interface Configuration 7750 SR OS Interface Configuration Guide Page 429 Cells 0 0 Unknown VPI VCI Cells 0 A ALA 49 ...
Страница 437: ...Interface Configuration 7750 SR OS Interface Configuration Guide Page 437 bundle num 1 256 type ppp ...
Страница 438: ...Debug Commands Page 438 7750 SR OS Interface Configuration Guide ...
Страница 444: ...Index Page 444 7750 SR OS Interface Configuration ...