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Revertive-mode
Revert-time
Rx K1/K2 byte
Tx K1/K2 byte
Current APS Sta-
tus
Mode Mismatch
Cnt
Channel mismatch
Cnt
PSB failure Cnt
FEPL failure Cnt
No. of Switcho-
vers
Last Switchover
Switchover sec-
onds
Signal Degrade
Cnt
7710 SR OS Interface Configuration Guide
Label
Displays the revertive mode of the APS group.
nonrevertive
another switch request is received.
revertive
tection line has been cleared the signal is switched back to the working
line.
Displays the configured time, in minutes, to wait after the working cir-
cuit has become functional again, before making the working circuit
active again. If the revertive mode is non-revertive, then this field will
be empty.
Displays the value of the SONET/SDH K1/K2 byte received on the
interface.
Displays the value of the SONET/SDH K1/K2 byte transmitted on the
interface.
Displays the current APS status.
Indicates the number of times a conflict occurs between the current
local mode and the received K2 mode information.
Indicates the number of mismatches between the transmitted K1 chan-
nel and the received K2 channel has been detected.
Displays a count of Protection Switch Byte (PSB) failure conditions.
This condition occurs when either an inconsistent APS byte or an
invalid code is detected.
Displays a count of far-end protection-line (FEPL) failure conditions.
This condition is declared based on receiving SF on the protection line
in the K1 byte.
Displays the number of times a switchover has occurred.
Displays the time stamp of the last switchover.
Displays the cumulative Protection Switching Duration (PSD) time in
seconds.
For a working channel, this is the cumulative number of seconds that
service was carried on the protection line.
For the protection line, this is the cumulative number of seconds that the
protection line has been used to carry any working channel traffic. This
information is only valid if revertive switching is enabled.
Displays the number of times the signal was degraded.
Description (Continued)
— Traffic remains on the protection line until
— When the condition that caused a switch to the pro-
Interface Configuration
Page 361
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