Transition Networks
S4224 Web User Guide
33558 Rev. C
Page 210 of 669
EPS Instance State
Protection State
: displays the current EPS state per the State Transition Tables in the G.8031 standard.
Disabled
: Protection state currently disabled.
NoReqW
: Currently in No request (NR) on working state (lowest priority).
NoReqP
: Currently in No request (NR) on protection state (lowest priority).
Lockout
: Currently locked out of protection (LO) state. This EPS is locked to the working (not active)
state.
Forced
: Currently in Forced switch to protecting state.
SfW
: Currently in ‘Signal Fail on Working’ state.
SfP
: Currently in ‘Signal Fail on Protection’ state (SF-P; highest priority).
ManualW
: Currently in Manual switch to working (MS-W) state.
ManualP
: Currently in Manual switch to protection state.
Wtr
: Currently in Wait to Restore (WTR) state.
ExerW
: Currently in Exercise (EXER) working state.
ExerP
: Currently in Exercise (EXER) protection state.
RevReqW
: Currently in Reverse request (RR) working state.
RevReqP
: Currently in Reverse request (RR) protection state.
DoNotRev
: Currently in Do not revert (DNR) state.
Idle
: no detected failure, no active automatic or external command, and receiving only "NR, RB" R-APS
messages.
W Flow
: Displays Working flow status of
OK
,
SF
, or
SD
, where:
OK
: State of working flow is ok
SF
: State of working flow is Signal Fail
SD
: State of working flow is Signal Degrade (for future use)
P Flow
: Displays Protection flow status of
OK
,
SF
, or
SD
, where:
OK
: State of protecting flow is ok
SF
: State of protecting flow is Signal Fail
SD
: State of protecting flow is Signal Degrade (for future use)
Transmit APS r/b
: Displays the transmitted APS according to the State Transition Tables in the G.8031
standard. In this field,
RB
indicates ‘
RPL Blocked
’, and
NR
indicates ‘
No Request
’ (e.g.,
NR Null/Null
displayed). No request (NR) is the ring protection condition when no local protection switching requests
are active.
EXER Null/Normal
indicates Exercise (EXER) protection state null / normal state.
Receive APS r/b
: Displays the received APS according to the State Transition Tables in the G.8031
standard. In this field,
rb
indicates ‘
RPL Blocked
’, and
NR
indicates ‘
No Request
’ (e.g.,
NR Null/Null
displayed). The status when RPL is blocked (used by RPL Owner in NR).
Architecture Mismatch
: Indicates whether the architecture indicated in the received APS does not
match the locally configured architecture. Displays a green dot for Up, or a red dot for Down. With all of
the options for provisioning, there are opportunities for mismatches between the provisioning at the two
ends. These provisioning mismatches take one of several forms, such as Mismatches where proper
operation is not possible, or Mismatches where one or both sides can adapt their operation to provide a