Chapter 8 Troubleshooting Tips

VoIP Monitor Problems

Cluster time synch fails

Symptom The cluster time on the CRS machines (on the same cluster) is not synchronized with the Unified Communications Manager.

Error Message The Network Time Protocol Service on the CRS machine exits with a message in the event log stating that the time difference is greater than the threshold.

Possible Cause The NTP service has a built-in threshold of 1000 seconds. If the time difference between the NTP client (CRS machines) and the server (Cisco Unified Communications Manager) is more than this threshold, the NTP service does not correct the time.

Recommended Action Do the following:

•Manually set the clock on each CRS machine in the cluster. The Time on the CRS machines should be approximately the same as the time on the Unified Communications Manager machine.

•Restart the Network Time Protocol service on the CRS machines, using the Service Control Manager.

CRS Servers respond slowly in HA environment

Symptom CRS servers in a high availabilitly (HA) environment respond very slowly. Because of the slow response time, the CRS system is unusable. No calls can get to agents.

Error Message LDAP error 51 in MADM logs. SDL and SQL errors on the Subscriber.

Possible Cause Publisher and Subscriber databases are no synchronized.

Recommended Action Synch up the Publisher and Subscriber databases.

Multilple failovers with high CPU usage

Symptom Multiple failovers occur in a high availability environment and there is high CPU usage on both servers. When the CRS server boots up, the primary server begins to spike the CPU usage causing the primary server to be unusable, and it fails over to the secondary server. The secondary server then starts the same behavior and eventually fails back over to the primary server.

Error Message None.

Possible Cause The problem can be caused by errors in the customer Java steps.

Recommended Action Check for custom Java steps in the scripting and remove them.

VoIP Monitor Problems

This section contains the following troubleshooting tips on VoIP Monitor Problems

•VoIP monitor does does not work correctly, page 8-77

•CRS fails to start, page 8-77

Cisco Customer Response Solutions Servicing and Troubleshooting Guide, Release 5.0(1)

8-76

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Cisco Systems 5.0(1) manual VoIP Monitor Problems, Cluster time synch fails, CRS Servers respond slowly in HA environment
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5.0(1) specifications

Cisco Systems 5.0(1) marks a significant development in the realm of networking technology, providing an upgraded platform designed to accommodate the ever-evolving demands of modern enterprises. This version is characterized by its robust set of features and cutting-edge technologies, enabling organizations to optimize their network performance, streamline operations, and enhance security.

One of the hallmark features of Cisco Systems 5.0(1) is its improved security protocols. The system introduces advanced encryption methods and enhanced access control mechanisms that ensure data integrity and confidentiality. These features are particularly important in a world where cyber threats are increasingly sophisticated. The integration of Security Intelligence capabilities allows administrators to detect anomalies and respond to potential threats in real-time, thus safeguarding sensitive information.

Another key characteristic of Cisco 5.0(1) is its support for software-defined networking (SDN). This technology allows for more effective resource management by enabling dynamic allocation of bandwidth in response to user needs. The network becomes more agile, facilitating rapid deployment and scalability. Cisco’s SDN capabilities also include enhanced automation features, which significantly reduce the manual effort required for network configuration and management, leading to increased operational efficiency.

In addition to SDN, Cisco 5.0(1) embraces innovations in cloud computing. The platform seamlessly integrates with cloud-based services, allowing organizations to manage their resources without the constraints of hardware limitations. This not only improves flexibility but also reduces operational costs, aligning with the financial strategies of modern businesses.

Moreover, Cisco 5.0(1) boasts improved user interfaces and management tools. The intuitive dashboard provides administrators with comprehensive visibility into network performance, allowing for quick identification of issues and facilitating better decision-making. Enhanced analytics capabilities provide insights into traffic patterns and device usage, empowering organizations to make informed adjustments to enhance network performance.

Finally, the platform is designed with interoperability in mind. Cisco Systems 5.0(1) supports a wide array of devices and integrates smoothly with other vendor technologies, which is essential in diverse networking environments.

In summary, Cisco Systems 5.0(1) delivers advanced security features, embraces software-defined networking, enhances cloud integration, offers user-friendly management tools, and supports interoperability. Together, these characteristics position Cisco as a leader in the networking industry, prepared to meet the challenges of tomorrow’s technological landscape.
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