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B-6
Cisco ONS 15454 SDH Reference Manual, R5.0
April 2008
Appendix B Administrative and Service States
B.3.2 Port and Cross-Connect Service State Transitions
Locked-enabled,disabled Put the port or cross-connect in
the Unlocked administrative
state.
Unlocked-enabled
Put the port or cross-connect in
the
Unlocked,automaticInService
administrative state.
Unlocked-disabled,automaticInService
Put the port or cross-connect in
the Locked,maintenance.
Locked-enabled,maintenance
Put the VCAT cross-connect in
the Locked,outOfGroup
administrative state.
Locked-enabled,maintenance & outOfGroup
Locked-enabled,loopback & maintenance Release the loopback.
Note While in
Locked-enabled,
loopback &
maintenance, both CTC
and TL1 allow a
cross-connect to be
deleted, which also
removes the loopback.
This applies only to the
cross-connect, not the
ports.
Locked-enabled,maintenance
Locked-enabled,maintenance Put the port or cross-connect in
the Unlocked administrative
state.
Unlocked-enabled
Put the port or cross-connect in
the
Unlocked,automaticInService
administrative state.
Unlocked-disabled,automaticInService
Put the port or cross-connect in
the Locked,disabled.
Locked-enabled,disabled
Locked-enabled,disabled & outOfGroup for a
VCAT cross-connect
Put the port or cross-connect in
loopback.
Locked-enabled,loopback & maintenance
Put the VCAT cross-connect in
the Locked,outOfGroup
administrative state.
Locked-enabled,maintenance & outOfGroup
1. For a VCAT member, an Unlocked-enabled to Unlocked-disabled,automaticInService transition will not occur with a Loss of Multiframe (LOM) or
Sequence Mismatch (SQM) condition on the member.
Table B-5 ONS 15454 SDH Port and Cross-Connect Service State Transitions (continued)
Current Service State Action Next Service State