NSG 9000-6G - Harmonic Inc

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Chapter 6 Monitoring and Troubleshooting Diagnosing and Analyzing Traffic alarm, it waits for the time specified in the Assert Threshold (Msec) field before asserting the alarm. Remit Threshold (Msec) - a latency period indicated in milliseconds for this alarm. When a module discovers a condition that would normally cause it to remit this alarm, it waits for the time specified in the Remit Threshold (Msec) field before remitting the alarm. Scan Interval (Msec) - defines how often the device checks for the conditions that raise the alarm. This field allows you to define a break, in milliseconds, in checking for the conditions that raise the alarm. Trigger Redundancy - defines whether the alarm triggers a redundancy switch. Add to Log - defines whether to write the alarm to the log of active alarms. Send Trap - defines whether to send an SNMP trap when the alarm is raised. Disable Alarm - when selected, this alarm is not issued upon correlated failure Set Default - click to revert the alarm settings to its default settings. This option appears only once you have changed any of the alarm parameters. NOTE: The Set Default button reverts all alarms to their default settings. 6.4 Diagnosing and Analyzing Traffic 6.4.1 Exporting Device Logs Export Logs You can export device logs as a zip archive file. The logs include the alarm log and additional files that include comprehensive system and application configuration information. 1. Select Monitoring > Diagnostics. 2. Click Export Logs. 3. In the Export File dialog, browse to the required location for saving the configuration. 4. Click Save. The device logs are exported to your PC as a Zip.archive file. 6.4.2 Capturing the Input and Output Traffic 6.4.2.1 Capturing IP Input Content Capture IP input streams to verify the integrity of video MPEG input streams, or to perform an analysis of the MPEG structures of the streams. © 2012 Harmonic Inc. 124 NSG 9000-6G, Version 2.7, Rev B
Chapter 6 Monitoring and Troubleshooting Diagnosing and Analyzing Traffic The IP Forwarding feature allows to mirror the input of one of GbE input ports on the output of another unused GbE port. Connect the mirroring port to devices that accept GbE input such as an MPEG analyzer. For cabling instructions, see NSG 9000-6G Installation and Hardware guide. The configuration includes the following: • Source port - the port that receives the input MPEG over IP traffic of interest. • Destination port - the port that outputs the mirrored traffic from the Source port. When configuring IP Forwarding, consider the following issues: • Verify that the Destination port is enabled. See 3.10.1 Configuring Input GbE ports on page 35. You may also need to connect to a gigabit ethernet switch in order to establish link, and to make sure no packets are dropped from the output port. To verify the link status, see 3.10.1 Configuring Input GbE ports on page 35. • Use a separate VLAN for the connection to the output port and to the sniffer PC. NOTE: Use socket forwarding for diagnostic purposes only and not during normal operation. To forward a GbE Input Port NOTE: Disable socket forwarding during normal operation. 1. Select Monitoring > Diagnostics and focus on the IP Forwarding section. 2. To enable mirroring, select Enable Forwarding. 3. Open the Forwarding Level list and select whether to forward a port or a socket. If you select a socket, define its parameters in the Sockets List table. 4. Open the Source Port list and select the GbE port that inputs the required content. 5. Open the Destination Port list and select the port to mirror the source port. 6. In the Sockets List table, define the following: GbE/MC IP Address - the destination GbE or Multicast IP address of the socket. GbE Port - enter the UDP port Source IP - enter the IP address of the port that streamed the socket into the device. To delete the socket, select Delete. 6.4.2.2 Capturing Output Traffic NSG 9000-6G incorporates an ASI monitoring port. It can mirror the output MPEG traffic from any QAM-RF channel. Once you have selected the QAM channel to be probed, the MPEG stream that is output on that QAM-RF channel is mirrored to the ASI monitor port, where you can input it to an MPEG analyzer, any device that has an ASI input connection. To forward to an ASI Port © 2012 Harmonic Inc. 125 NSG 9000-6G, Version 2.7, Rev B
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NSG 9000-6G - Harmonic Inc

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