Juniper JUNOSE SOFTWARE 11.2.X - LINK LAYER CONFIGURATION GUIDE 7-7-2010 Configuration Manual page 142

JunosE 11.2.x Link Layer Configuration Guide
encapsulation frame-relay ietf
frame-relay description
frame-relay interface-dlci ietf
110
Use to set the number of bits used for CRC.
The 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 bits per frame that are used to calculate the frame
check sequence (FCS).
A 32-bit CRC transmits longer streams at faster rates and therefore provides better
ongoing error detection, such as for an OC12/STM4 POS module.
The default is 16. You must configure CRC (CRC16 or CRC32) to match the configuration
on the other side of the Frame Relay connection.
Example
host1(config-if)#crc 32
Use the no version to set the CRC to the default value.
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 Frame Relay configuration from an interface.
See encapsulation frame-relay ietf.
Use to assign a text description or an alias to a Frame Relay interface or subinterface.
You can use this command to help you identify the interface and keep track of interface
connections.
The description or alias can be a maximum of 80 characters.
Use "show frame-relay interface" on page 121 or "show frame-relay subinterface" on
page 127 to display the text description.
Examples
host1(config-if)#frame-relay description boston01
host1(config-subif)#frame-relay description toronto011
Use the no version to remove the text description or alias.
See frame-relay description.
Use to configure a Frame Relay permanent virtual circuit (PVC) over a subinterface.
The ietf keyword is mandatory and indicates RFC 2427 encapsulation.
Copyright © 2010, Juniper Networks, Inc.