Alcatel-Lucent 7750 SR OS Interface Configuration Manual page 294

Configuration Commands
Default Blank (all zeros)
Parameters
auto-generated — Sets the default PSI trace
string identifier — Sets the PSI trace to the string provided by the user. If the string is less than 255
bytes byte1 [byte2...(up to 64 bytes)] — Sets the PSI trace to the sequence of bytes provided by the
expected
Syntax expected {string string | bytes byte-sequence | auto-generated | use-rx}
Context config>port>otu>pm-tti
Description
This command allows the user to configure the expected RX in bytes 1 to 255 (skipping byte 0) of the
Payload structure identifier (PSI) of the OPU 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 255 bytes.
This trace should match the far-end port's PSI trace. When this trace does not match the received PSI
trace, the OPU-TIM alarm will be reported if enabled.
Default
Blank (all zeros)
Parameters
auto-generated — Sets the default
string string — Sets the PSI trace to the string provided by the user. If the string is less than 64 bytes,
bytes — [byte1 byte2 ... byte64]. Sets the PSI trace to the sequence of bytes provided by the user. If
use-rx — Copies the received psi-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>psi-tti
Description This command allows the user to configure the consequent action to a psi-tti mismatch.
Default
None
Parameters
none — The received traffic is passed through.
squelch-rx — The received traffic is blocked.
Page 294
bytes, the remaining bytes will be set to 0.
user. If the user provides less than 64 bytes, the remaining bytes will be set to 0. A 1 byte
sequence of 0xFF will set the default strings.
Values 0 — FF, in hexidecimal byte notation
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 psi-tti data.
7750 SR OS Interface Configuration Guide