11-5
Cisco ONS 15454 DWDM Reference Manual, R8.5
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Chapter 11 Optical Channel Circuits and Virtual Patchcords Reference
11.1.4 Administrative and Service States
You can modify OCH trail circuit states from the Edit Circuit window. Placing an OCH trail
OOS,DSBLD/Locked,disabled causes the following state changes:
• The state of the OCH trail ports changes to OOS,DSBLD/Locked,disabled.
• The OCHNC state changes to OOS,DSBLD/Locked,disabled.
Changing the OCH trail state to IS,AINS/Unlocked,automaticInService causes the following state
changes:
• The state of the OCH trail trunk ports changes to IS/Unlocked.
• The OCHNC state changes to IS,AINS/Unlocked,automaticInService.
The OCH trail service state is the sum of the OCHCC trunk port state and the OCHNC (if applicable)
state. Changing the client card trunk ports to OOS,DSBLD/Locked,disabled when the OCH trail state
IS/Unlocked will cause the OCH trail state to change to OOS,DSBLD/Locked,disabled and its status to
change to Partial.
The OCHNC circuit states are not linked to the OCHCC circuit states. The administrative states for the
OCHNC circuit layer are:
• IS,AINS/Unlocked,AutomaticInService
• OOS,DSBLD/Locked,disabled
When you create an OCHNC, you can set the target OCHNC circuit state to IS/Unlocked or
OOS,DSBLD/Locked,disabled. You can create an OCHNC even if OCHNC source and destination ports
are OOS,MT/Locked,maintenance. The OCHNC circuit state will remain
OOS-AU,AINS/Unlocked-disabled,automaticInService until the port maintenance state is removed.
During maintenance or laser shutdown, the following behavior occurs:
• If OCHNCs or their end ports move into an AINS/AutomaticInService state because of user
maintenance activity on an OCHCC circuit (for example, you change an optical transport section
(OTS) port to OOS,DSBLD/Locked,disabled), Cisco Transport Controller (CTC) suppresses the
loss of service (LOS) alarms on the TXP, MXP, GE_XP, 10GE_XP, or ITU-T line card trunk ports
and raises a Trail Signal Fail condition. Line card trunk port alarms are not changed, however.
• If TXP client or trunk port are set to OOS,DSBLD/Locked,disabled state (for example, a laser is
turned off) and the OCH trunk and OCH filter ports are located in the same node, the OCH filter
LOS alarm is demoted by a Trail Signal Fail condition.
OCHCCs are associated with the client card end ports. Therefore, the following port parameters cannot
be changed when they carry an OCHCC:
• Wavelength
• Service (or payload type)
• Splitter protection
• ITU-T G.709
• Forward error correction (FEC)
• Mapping
Certain OCHCC parameters, such as service type, service size, and OCHNC wavelength can only be
modified by deleting and recreating the OCHCC. If the OCHCC has MXP end ports, you can modify
services and parameters on client ports that are not allocated to the OCHCC. Some client port
parameters, such as Ethernet frame size and distance extension, are not part of an OCHCC so they can
be modified if not restricted by the port state. For addition information about administrative and service
states, see Appendix B, “Administrative and Service States.”
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