Troubleshooting guide

Release Notes for Cisco ONS 15454 Release 7.0.2

OL-11368-01

New Features and Functionality

loaded. The MS-ISC-100T card operates in Slots 1 to 6 and 12 to 17 on the node controller shelf; the

recommended slots are Slot 6 and Slot 12. For MS-ISC-100T card port assignments and card-level

indicators consult the user documentation.

MMU Card

The Mesh/Multiring Upgrade Unit (MMU) card supports multiring and mesh upgrades for ROADM

nodes in both the C band and the L band. Mesh/multiring upgrade is the capability to optically bypass a

given wavelength from one section of the network or ring to another one without requiring 3R

regeneration. In each node, install two MMUs, one on the east side and one on the west side. You can

install the MMU card in Slots 1 through 6 and 12 through 17.

The MMU has six ports:

• EXP RX port—The EXP RX port receives the optical signal from the ROADM section available on

the NE.

• EXP TX port—The EXP TX port sends the optical signal to the ROADM section available on the

NE.

• EXP-A RX port—The EXP-A RX port receives the optical signal from the ROADM section

available on other NEs or rings.

• EXP-A TX port—The EXP-A TX port sends the optical signal to the ROADM section available on

other NEs or rings.

• COM TX port—The COM TX port sends the optical signal to the fiber stage section.

• COM RX port—The COM RX port receives the optical signal from the fiber stage section.

For power monitoring, MMU card-level indicators, and MMU port-level indicators, consult the user

documentation.

New Software Features and Functionality

CTC Support for Full C-band and L-band Trunk Wavelength Tunability

Release 7.0.x CTC supports full C-band and L-band trunk wavelength tunability with settings in the

card-level Provisioning > Line > Wavelength Trunk Settings tab for the following cards:

• TXP_MR_10E_C

• TXP_MR_10E_L

• MXP_MR_10DME_C

• MXP_MR_10DME_L

• MXP_2.5G_10E_C

• MXP_2.5G_10E_L

Each card can be provisioned to operate in a specific trunk wavelength in its respective band (C or L).

You can also preprovision trunk wavelength settings to the band appropriate for the card you plan to

install. Trunk wavelength settings employ interleaved odd and even 100-GHz ITU spaced grids.

Interleaved odd and even wavelength subdivisions ensure maximum transmission capacity in the form

of a high number of available channels per card for your DWDM network, while also maintaining signal

reliability. In CTC, selecting the odd or even grid sets your first tunable wavelength, as well as the

100-GHz ITU spaced wavelengths you can tune to thereafter.