[an error occurred while processing this directive] [an error occurred while processing this directive]

Configuring the E1 Frame Checksum

By default, the E1 interface supports a 16-bit checksum. You can configure a 32-bit checksum, which provides more reliable packet verification. However, some older equipment might not support 32-bit checksums.

To configure a 32-bit checksum, include the fcs 32 statement at the [edit interfaces interface-name e1-options] hierarchy level:

[edit interfaces interface-name e1-options]
fcs 32;

To return to the default 16-bit frame checksum, delete the fcs 32 statement from the configuration:

[edit]
user@host# delete interfaces e1-fpc/pic/port e1-options fcs 32

To explicitly configure a 16-bit checksum, include the fcs 16 statement at the [edit interfaces interface-name e1-options] hierarchy level:

[edit interfaces interface-name e1-options]
fcs 16;

Updated: 2009-04-07

[an error occurred while processing this directive]