Release Notes

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Release Notes for Cisco ONS 15454 SDH Release 4.1.3
OL-4984-01
New Features and Functionality
• No hardware changes: Only requires ONS 15454 Release 4.1.x, which includes the new IOS
configuration.
• Increased number of supportable VLANs and MAC addresses on the ring.
• A scalable, inter-ring protection mechanism for increased network resiliency.
• The addition of RPR does not remove any Release 4.0 functionality. RPR features are enabled via a
new set of configuration commands.
For further details of RPR uses and features, consult the user documentation for Release 4.1.
Open Ended SNCP
In previous releases, you could create an end-to-end SNCP circuit on any Cisco ONS 15XXX network
using A-Z provisioning of CTC/CTM. This feature requires you to specify one source node and one
destination node of a SNCP circuit. CTC/CTM requires these nodes to be part of the network that is
discovered by CTC/CTM.
With Release 4.1.x you can create an open ended SNCP circuit in addition to a regular SNCP. An open
ended SNCP circuit is a partial SNCP circuit. This feature helps you create end-to-end SNCP circuits
where a part of the given SNCP circuit is on a Cisco 15XXX network, while the other part of the circuit
is on another vendor's equipment. The circuit may consist of one source point and two end points. There
are two paths from the source; one path is from the source to one end point and the other path is from
the source to the other end point. The source has a bridge that sends the traffic on both paths. The end
points do not have any selectors and may hand off the traffic to another vendor's equipment. For
bidirectional circuits, the source also contains a selector for the reverse traffic from end points to source.
Alternatively, open ended SNCP can be used to create a circuit with two sources and one destination. In
the unidirectional case, the destination node has a selector, and the source nodes have one-way
connections.
NE Defaults
The NE defaults pane user interface is changed in Release 4.1.x as follows:
• The NE defaults pane now has a highlighted title at the top of the pane, indicating the last action
taken by the user.
• If you import or export a file, the title shows the file name and the time of the action.
• If you load or apply a file to the node, the changes and the time of the action will be displayed.
User Privileges
As of Release 4.1.x, The following user privileges have changed:
• A Maintenance level user can back up the database and transfer a software package to the node.
• A Provisioning level user can delete and reset cards.
Protect Threshold Crossing Alarms
As of Release 4.1.x, BLSR/MS-SPR and path protection/SNCP protect thresholds at both the card and
port level are inherited from the working card/port.