Check Field Length; Table 7-3 The Length Of The Crc Field Supported By Each Type Of Board - Huawei OptiX OSN 550 Configuration Manual

7 List of Parameters
The following table lists the description of each value.
Value
Yes
No
Configuration Guidelines
The value of Set Inverse Value for CRC for VCTRUNK of the local equipment must be the
same as that of Set Inverse Value for CRC for the VCTRUNK of the interconnected equipment.
Relationship with Other Parameters
This parameter takes effect only when Mapping Protocol is set to LAPS or HDLC.

7.23 Check Field Length

Description
The Check Field Length parameter specifies the length of the CRC field of the mapping
protocol.
Impact on the System
If Mapping Protocol is set to HDLCor LAPS, and if the value of Check Field Length is
different from that for the interconnected VCTRUNKs at the two ends, the service is interrupted.
Values
Table 7-3

Table 7-3 The length of the CRC field supported by each type of board

Board Name
EFS8, EGT1
The following table lists the description of each value.
7-24
Description
Sets an inverse value for the CRC field.
Does not set an inverse value for the CRC field.
shows the value range of each type of board.
Mapping
Protocol
GFP
LAPS
HDLC
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OptiX OSN 550 Multi-Service CPE Optical Transmission
Value Range
l FCS32
l No
l FCS32
l FCS32
System
Configuration Guide
Default Value
FCS32
Issue 02 (2011-06-30)