Juniper JUNOSE SOFTWARE 11.0.X - LINK LAYER CONFIGURATION GUIDE 4-1-2010 Configuration Manual page 347

8.
9.
10.
11.
12.
clock source
crc
encapsulation frame-relay ietf
(Optional) Set the MRU size.
host1(config-if)#mru 1000
(Optional) Set the MTU size.
host1(config-if)#mtu 1000
(Optional) Set the type of framing.
host1(config-if)#pos framing sdh
Disable payload scrambling.
host1(config-if)#no pos scramble-atm
(Optional) Disable an interface.
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.
Chapter 9: Configuring Packet over SONET
Configuration Tasks
317