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Configure a 32-Bit Checksum

Action

To explicitly configure the 32-bit checksum, follow these steps:

  1. In configuration mode, go to the following hierarchy level:
    2. [edit]

    user@host# edit interfaces so-fpc/pic/port sonet-options
  2. Configure the 32-bit checksum:
    3. [edit interfaces so-fpc/pic/port sonet-options]

    user@host# set (fcs 32 | rfc-2615)

    

    

    

       
NOTE: The rfc-2615 statement automatically configures the interface to use FCS 32 and changes the C2 byte to 0x16, as per the RFC.
  3. Verify the configuration:
    4. user@host# show

For example:

[edit interfaces so-0/0/0 sonet-options]

user@host# show 

fcs 32;

or



[edit interfaces so-0/0/0 sonet-options]

user@host# show 

rfc-2615;
  1. Commit the configuration:
    2. user@host# commit

    

    

    

       
NOTE: On a Channelized OC-12 interface, the sonet-options fcs statement is not supported. To configure FCS on each DS-3 channel, you must include the t3-options fcs statement in the configuration for each channel.
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