Troubleshooting guide

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Release Notes for Cisco ONS 15454 Release 7.0.2
OL-11368-01
New Features and Functionality
Multishelf Nodes
Release 7.0.x supports multishelf DWDM nodes. Multishelf node provisioning enables you to centralize
many tasks, such as node configuration and maintenance, VLAN management, software download,
alarm management, performance monitoring, remote DCC, GCC, and OSC terminations, and database
and diagnostic functions.
An ONS 15454 node provisioned as a multishelf node can manage up to 8 subtending shelves as a single
entity. The node controller is the main shelf; its TCC2/TCC2P cards run multishelf functions. Each
subtending shelf must also be equipped with TCC2/TCC2P cards, which run the local shelf functions.
For internal data exchange between the node controller shelf and subtending shelves, the node controller
shelf must be equipped with redundant MS-ISC-100T cards or, as an alternative, the Cisco Catalyst 2950
switch. Cisco recommends using the MS-ISC-100T cards. If you use the Catalyst 2950, install it on one
of the multishelf racks. All subtending shelves must be located in the same site at a maximum distance
of 100 meters from the Ethernet switches used to support the communication LAN.
A multishelf node has a single public IP address for all client interfaces (CTC, TL1, SNMP, or HTTP,
for example); a client can only connect to the node controller shelf; not to the subtending shelves. The
user interface and subtending shelves are connected to a patch panel using straight-through (CAT 5)
LAN cables.
The node controller shelf has the following responsibilities:
• IP packet routing
• Network topology discovery
• Centralized OSPF
Subtending shelves have the following responsibilities:
• Overhead circuit management
Note To use overhead bytes, the AIC-I must be installed on the subtending shelf where it is terminated.
• Act as a single shelf node that can be used as a timing source line, TCC clock, or BITs source line
Multishelf Node Setup
Cisco recommend the following multishelf configurations, which are supported by MetroPlanner and
automatically discovered by the software:
• Typical installation—All optical units are equipped on the node controller shelf, and TXP/MXP
cards are equipped in the aggregated subtended shelves. In addition, all empty slots in the node
controller shelf can be equipped with TXP/MXP cards.
• East/west protected—All optical units facing west are equipped in one shelf; all optical units facing
east are equipped in another shelf.
Patchcords are automatically created only if the TXP/MXP cards have been previously tuned on one of
the supported wavelengths.
DCC, GCC, and OSC Terminations
A multishelf node provides the same communication channels as a single shelf MSTP node: