Troubleshooting guide

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Release Notes for Cisco ONS 15454 Release 7.0.2
OL-11368-01
New Features and Functionality
Digital wrappers that define client side interfaces are called Optical Data Channel Unit 2 (ODU2)
entities in ITU-T G.709. Digital wrappers that define trunk side interfaces are called Optical Channels
(OCh) in ITU-T G.709. ODU2 digital wrappers can include Generalized Multiprotocol Label Switching
(G-MPLS) signaling extensions to ITU-T G.709 (such as Least Significant Part [LSP] and Generalized
Payload Identifier [G-PID] values) to define client interfaces and payload protocols.
Automatic Laser Shutdown
The ALS procedure is supported on both client and trunk interfaces. On the client interface, ALS is
compliant with ITU-T G.664 (6/99). On the data application and trunk interface, the switch on and off
pulse duration is greater than 60 seconds. The on and off pulse duration is user-configurable.
MXP_2.5G_10E_C and MXP_2.5G_10E_L Cards
The 2.5-Gbps-10-Gbps Muxponder-100 GHz-Tunable (MXP_2.5G_10E_C and MXP_2.5G_10E_L)
cards are DWDM muxponders for the ONS 15454 platform that support full optical transparency on the
client side. The cards multiplex four 2.5 Gbps client signals (4 x OC48/STM-16 SFP) into a single
10-Gbps DWDM optical signal on the trunk side. The MXP_2.5G_10E_C and MXP_2.5G_10E_L cards
provide wavelength transmission service for the four incoming 2.5 Gbps client interfaces. The
MXP_2.5G_10E_C and MXP_2.5G_10E_L muxponders pass all SONET/SDH overhead bytes
transparently.
The digital wrapper function (ITU-T G.709 compliant) formats the DWDM wavelength so that it can be
used to set up GCCs for data communications, enable FEC, or facilitate performance monitoring.
The MXP_2.5G_10E_C and MXP_2.5G_10E_L cards work with OTN devices defined in ITU-T G.709.
The cards support ODU1 to OTU2 multiplexing, an industry standard method for asynchronously
mapping a SONET/SDH payload into a digitally wrapped envelope.
The MXP_2.5G_10E_C and MXP_2.5G_10E_L cards are not compatible with the MXP_2.5G_10G
card, which does not support full optical transparency.
You can install MXP_2.5G_10E_C and MXP_2.5G_10E_L cards in Slots 1 to 6 and 12 to 17. You can
provision a card in a linear configuration, as a BLSR/MS-SPRing, a UPSR/SNCP, or a regenerator. The
cards can be used in the middle of BLSR/MS-SPRing or 1+1 spans when the cards are configured for
transparent termination mode.
The MXP_2.5G_10E_C card features a tunable 1550-nm C-band laser on the trunk port. The laser is
tunable across 82 wavelengths on the ITU grid with 50-GHz spacing between wavelengths. The
MXP_2.5G_10E_L features a tunable 1580-nm L-band laser on the trunk port. The laser is tunable
across 80 wavelengths on the ITU grid, also with 50-GHz spacing. Each card features four 1310-nm
lasers on the client ports and contains five transmit and receive connector pairs (labeled) on the card
faceplate. The cards uses dual LC connectors on the trunk side and use SFP modules on the client side
for optical cable termination. The SFP pluggable modules are short reach (SR) or intermediate reach (IR)
and support an LC fiber connector.
Key Features
The MXP_2.5G_10E_C and MXP_2.5G_10E_L cards have the following high level features:
• Four 2.5 Gbps client interfaces (OC-48/STM-16).
• One 10 Gbps trunk interface.
• The four OC-48 signals are mapped into a ITU-T G.709 OTU2 signal using standard ITU-T G.709
multiplexing.