Specifications

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Cisco ONS 15530 Planning Guide
OL-7708-01
Chapter 1 System Overview
System and Network Management
The in-band OAM&P messages carry the following types of information:
• Internodal management traffic.
• APS (Automatic Protection Switching) protocol messages.
• Subport identifiers for signal aggregation.
• Signal defect indications used by the system to identify line, segment, or path failures in the network
topology and to take appropriate recovery responses to such failures. These indications include the
following:
– BDI-E (end-to-end backward defect indication)
– FDI-E (end-to-end forward defect indication)
– BDI-H (hop-to-hop backward defect indication)
– FDI-H (hop-to-hop forward defect indication)
• CRC (cyclic redundancy check) computations.
In-Band Message Channel Consideration
The following considerations apply for the in-band message channel:
• The in-band message channel is carried along with the aggregated data signals and does not require
extra equipment or a slot in the shelf.
• The in-band message channel is only supported on the 2.5-Gbps ITU trunk cards, 10-Gbps ITU
tunable and non tunable trunk cards, and 10-Gbps uplink cards. If a shelf only has transponder line
cards, the in-band message channel is not available.
• The in-band message channel must be enabled on both nodes that support the wavelength.
DCC
DCC establishes a method for providing in-band, per-wavelength OAM&P (operations, administration,
management, and provisioning) functions on the 8-port multi-service muxponder.
The in-band OAM&P messages carry the following types of information:
• Internodal management traffic.
• APS (Automatic Protection Switching) protocol messages.
DCC Consideration
The following considerations apply for the DCC:
• The DCC is carried along with aggregated data signals and does not require extra equipment or a
slot in the shelf.
• The data rate is slower than the in-band message channel supported on the 2.5-Gbps ITU trunk card,
the 10-Gbps ITU trunk card, and the 10-Gbps uplink card. This causes the 8-port multi-service
muxponder to initialize slower than those cards.
• The DCC must be configured on both 8-port multi-service muxponders that support the wavelength.