Cisco MGX 8950 Specifications Page 239

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5-7
Cisco MGX 8850 (PXM1E/PXM45), Cisco MGX 8950, Cisco MGX 8830, and Cisco MGX 8880 Configuration Guide
Release 5.0.10, OL-3845-01 Rev. B0, August 16, 2004
Chapter 5 Preparing SRM Cards for Communications
Setting Up SRM Lines
-lpb Enables one of two loopback types or disables an active
loopback, as follows:
1: No loopback
2: Local loopback
3: Remote loopback
A loopback circulates OAM cells between the card and the
CPE in a local loopback or between the card and the network
in a remote loopback. The loopback continues until you halt
it by again running the cnfln command with the parameter
sequence -lpb 1.
Default: no loopback
-sfs Enables/disables the frame scramble feature. Replace
<FrameScramble> with 1 to disable frame scramble, or 2 to
enable frame scramble.
-rdiv Specifies the number of RDI V bits. Replace <RDI-V Type>
with either a “1” for 1 bit or a “3” for 3 bits.
-rdip Specifies the number of RDI P bits. Replace <RDI-V Type>
with either a “1” for 1 bit or a “3” for 3 bits.
-tt The TributaryType selects a tributary type for either SONET
or SDH. SONET references virtual tributary (VT) types, and
SDH references virtual container (VC) types. Select the
tributary type that supports the line type used by the service
modules using this SONET/SDH line:
T1 lines (VT15/VC11) = 1
E1 lines (VT2/VC12) = 2
Note E1 lines (VT2/VC12) are supported only when the
-slt option is set to 2 to select SDH.
-tm The tributary mapping type can be configured as
asynchronous or byte-synchronous. Type a “1” or “2.”
Asynchronous = 1
Byte-synchronous (T1 tributary type only) = 2
Default: asynchronous
-tf The tributary framing type is either superframe or extended
superframe. This option applies only when the tributary
mapping is byte-synchronous (-tm 2). Replace
TributaryFramingType with 2 to specify Superframe, or 3 to
specify extended superframe.
Table 5-1 Parameters for SONET Line Configuration (continued)
Parameter Description
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