Juniper JUNOSE SOFTWARE 11.2.X - LINK LAYER CONFIGURATION GUIDE 7-7-2010 Configuration Manual page 395

clock source
crc
encapsulation frame-relay ietf
encapsulation ppp
Copyright © 2010, Juniper Networks, Inc.
host1(config-if)#pos framing sdh
Disable payload scrambling.
11.
host1(config-if)#no pos scramble-atm
(Optional) Disable an interface.
12.
host1(config-if)#shutdown
Use to set the clock source.
You can set internal or line clocking.
Internal clocking has two options:
module—Uses internal clock from the line module
chassis—Uses the configured router clock
Example
host1(config-if)#clock source internal module
Use the no version to restore the default value, line.
See clock source.
Use to set the number of bits used for CRC checking.
CRC is an error-checking technique that uses a calculated numeric value to detect
errors in transmitted data; 16 and 32 indicate the number of check digits per frame that
are used to calculate the frame check sequence (FCS). Both the sender and receiver
must use the same setting.
Example
host1(config-if)#crc 32
Use the no version to restore the default value, 16.
See crc.
Use to specify Frame Relay as the encapsulation method for the interface.
The router uses IETF format (RFC 2427 encapsulation).
Example
host1(config-if)#encapsulation frame-relay ietf
Use the no version to remove the Frame Relay configuration from an interface.
See encapsulation frame-relay ietf
Chapter 11: Configuring Packet over SONET
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