Alcatel-Lucent 7750 SR OS Interface Configuration Manual page 290

Configuration Commands
expected
Syntax expected {string string | bytes byte-sequence | auto-generated | use-rx}
Context config>port>otu>sm-tti
Description This command enables the user to configure the expected RX Trail Trace Identifier (TTI) for Section
Monitoring (SM) in the OTU overhead. This identifier can be a string or a non-printable sequence of
bytes. The length of the string or sequence of bytes cannot exceed 64 bytes. This trace should match
the expected far-end port's SM trace. When this trace does not match the received SM trace, the
OTU-TIM alarm will be reported if enabled.
Default Blank (all zeros)
Parameters auto-generated — Sets the default
string string — Sets the SM TTI to the string provided by the user. If the string is less than 64 bytes,
bytes — [byte1 byte2 ... byte64]. Sets the SM TTI to the sequence of bytes provided by the user. If
use-rx — Copies the received sm-tti to the expected either as a string or a sequence of bytes
mismatch-reaction
Syntax mismatch-reaction {none | squelch-rx}
Context config>port>otu>sm-tti
Description
This command allows the user to configure the consequent action to a sm-tti mismatch.
Default
None
Parameters none — The received traffic is passed through.
squelch-rx — The received traffic is blocked.
pm-tti
Syntax pm-tti
Context config>port>otu
Description
This command enables the context to configure path monitoring trail trace identifier parameters.
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the remaining bytes will be set to 0.
the user provides less than 64 bytes, the remaining bytes will be set to 0.
depending on the received sm-tti data.
7750 SR OS Interface Configuration Guide