Ddts # CSCdx78825, Upgrades from Release

Caveats

DDTS # CSCdx78825

The ONS 15327 XTC reboots after the XTC has received 64 or more ARP requests on a subnet different from that of the XTC. This situation can occur when the network settings (IP address and netmask) are incorrect for the craft Ethernet environment. The node may respond to Ethernet ARP requests via its automatic host detection feature. If this feature is triggered more than 64 times, the node's XTC will reboot. Removing the craft Ethernet connection resets the count, so this situation is unlikely to occur with an End Network Element (ENE). To avoid this issue, ensure that the node is properly provisioned for its craft Ethernet environment. In particular, ensure that the netmask is correct. For ENEs that depend on automatic host detection, avoid leaving the craft Ethernet connected for more than one day at a time. This issue is resolved in Release 3.4.

Upgrades from Release 1.0

If you wish to upgrade from Release 1.0 to Release 3.3, you must first upgrade to maintenance Release

1.0.2.If you are already running maintenance Release 1.0.1, you do not have to perform the intermediate upgrade.

DDTS # CSCdx02680

If you create a VT circuit, set the DS1 port in service, generate any alarm, then set the port out of service, you may see VT alarms that will not clear. To clear the alarms, delete the VT circuit. This issue will be resolved in Release 3.4.

DDTS # CSCds23552

You cannot delete the standby XTC once it is removed. If you have two XTC cards and then decide to operate with only one, you will get a standing minor alarm. The alarm cannot be removed by CTC. The XTC is a combo card, combining the functionality of the ONS 15454 TCC+, cross connect, DS1 and DS3 cards, with a protection group automatically provisioned. On the ONS 15454, similar behavior occurs for the TCC+ card. The cross connect card for the ONS 15454 can only be deleted if there are no circuits provisioned. DS1 and DS3 cards can only be deleted if they are not in a protection group. It is not known at this time when or if this issue will be resolved.

DDTS # CSCdw71844

If a manual switch request is made when a higher priority request is present (in other words, SD/SF or lockout), the user request will not be denied. This issue will be resolved in Release 3.4. As of Release 3.4, if a user initiated switch should not cause an actual switch (because of a higher priority request), the switch will be denied.

If a switch is accepted but overridden at a later time because a higher priority request is initiated, the current switch will be cleared. This applies to 1+1, UPSR/SNCP and BLSR/MS-SPRing.

DDTS # CSCdw95301

When there are large numbers of VT circuits (greater than 100) and when there is a lot of circuit activity (for example, when there are a lot of updates), the circuits pane can be extremely slow to repaint, and the user interface can fail to respond for several minutes. This issue will be resolved in a future release.

Release Notes for Cisco ONS 15327 Release 3.3

	OL-2671-01	3

ONS 15327 specifications

Cisco Systems ONS 15327 is a high-performance optical networking solution tailored for service providers and enterprises looking to enhance their optical communication infrastructure. This versatile platform is recognized for its robust performance, scalability, and flexibility, making it suitable for a wide array of applications ranging from broadband access to metropolitan area networking.

One of the standout features of the ONS 15327 is its ability to handle multiple data types over a single platform. It supports a rich array of protocols, including Ethernet and SONET/SDH, allowing service providers to deliver a diverse portfolio of services to their customers. This multiservice capability simplifies the network architecture, reducing operational complexity and costs.

The ONS 15327 is designed with a modular architecture, which enables operators to customize and scale their network as demand grows. It supports a variety of card options for different media types, wavelengths, and capacity requirements. This modularity not only facilitates straightforward upgrades but also allows for efficient network management.

In terms of technology, the ONS 15327 leverages dense wavelength division multiplexing (DWDM) capabilities to maximize the utilization of available fiber bandwidth. This allows for an impressive increase in transmission capacity without the need for additional fiber installations, making it a cost-effective solution for expanding networks.

Another significant characteristic of the Cisco ONS 15327 is its advanced performance monitoring and management features. Built-in diagnostic tools provide real-time visibility into network performance, enabling prompt identification and troubleshooting of potential issues. This proactive approach to network management enhances service reliability and customer satisfaction.

Security is also paramount in the ONS 15327. The platform integrates various security features and protocols to protect the data traversing the network, ensuring compliance with industry standards and safeguarding sensitive information.

Furthermore, the equipment is designed for easy integration into existing infrastructures. Its compatibility with Cisco’s broader networking solutions allows for seamless interconnection with routers, switches, and other devices, facilitating comprehensive network solutions.

In conclusion, Cisco Systems ONS 15327 stands out as a powerful optical networking platform that combines versatility, scalability, and advanced management features. Its ability to support various protocols and harness optical technologies makes it an essential tool for organizations aiming to optimize their telecommunications infrastructure while minimizing costs and complexity.