Cisco ONS 15454 Software Feature And Configuration Manual page 199
Sonet / sdh ml-series multilayer ethernet card
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- Procedure manual (850 pages) ,
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Appendix A
Command Reference
[no] pos flag c2 <value>
Use this command to specify the C2 byte value for transmitted and received frames. Use the no form of
the command to return the C2 byte to it's default value.
Parameter
value
Defaults
When changing the encapsulation on a POS port between LEX and PPP/HDLC, the scrambling and c2
settings will be automaticallychanged to their default values according to the table below.
encap
LEX
PPP/HDLC
In PPP/HDLC encapsulation, changing the scrambling, automatically changes the "pos flag c2" to it's
default according to the table below. In LEX encapsulation, changing the scrambling does not affect c2.
encap
PPP/HDLC
PPP/HDLC
Command Modes
Interface configuration mode (POS only)
Usage Guidelines
This value is normally configured to match the setting on the peer Path Terminating Equipment (PTE).
Using the correct order of operations will avoid having the non-default settings overridden by the
encapsulation change. The recommended order follows:
•
•
•
Also note that the crc setting varies among different types of PTE. The default crc on the ML series card
is 32-bits, regardless of any other settings. In most circumstances, the default settings should be correct,
but users need to verify this with the user documentation for the PTE.
Examples
Gateway(config)#int pos0
Gateway(config-if)#pos flag c2 0x16
Related Commands
pos trigger defects
pos report
Cisco ONS 15454 SONET/SDH ML-Series Multilayer Ethernet Card Software Feature and Configuration Guide, R4.0
78-15224-02
Description
C2 byte value
scrambling
pos scramble-spe
no pos scramble-spe
scrambling
pos scramble-spe
no pos scramble-spe
Set encap to PPP/HDLC
Set scrambling (if a non-default setting is required)
Set c2 (if a non-default setting is required)
c2
pos flag c2 0x01
pos flag c2 0xCF
c2
pos flag c2 0xCF
pos flag c2 0x16
[no] pos flag c2 <value>
A-3
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