Cabletron Systems MMAC-Plus SFCS-1000, Configuration Manual

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5-4
DS-3 Configuration
5.5 Configuring DS-3 Framing
There are two types of framing that the DS-3 ports support: clear channel and
C-bit parity. These types of framing affect the significance of the overhead bits
in the DS-3 frames.
To change the framing of a DS-3 port, log in to AMI and enter the following
parameters:
configuration port ds3 framing <port> (cchannel | cbit)
The <port> variable indicates the DS-3 port that is to be modified and the
(cchannel|cbit) variable is the type of framing for the port. The default set-
ting is cbit (cbitparity). If there are no DS-3 ports on the switch fabric, then
this option is disabled.
After the framing configuration is changed on a DS-3 port, the SCP immedi-
ately puts that change into effect on that switch fabric. At the same time, that
information is entered into the configuration database file so that the new
configuration will be put into effect every time the switch control software
starts on that particular SCP.