NSG 9000-6G - Harmonic Inc

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Chapter 4 Configuring Applications M-CMTS Application 4.4.5 Monitoring SDV Connections The Connections tab lists all SDV managers together with a messages counter. The counter monitors the connection between the SDV managers and the edge QAM. Each time a message is received by the edge QAM, the counter registers another incidence and updates the number of messages. You may refresh the connection when required. To monitor SDV connections 1. Select Applications > SDV > Connections. 2. View the Manager IP and the number of messages and whether it increases. 3. To refresh connection, click Refresh Connection. 4.5 M-CMTS Application When NSG 9000-6G is integrated in an M-CMTS system, do the following: • Create an M-CMTS session by defining the QAM Manager as M-CMTS • Configure the session - When you configure an M-CMTS session, you choose to output a socket without any changes, that is without remapping and without generating tables. To create an M-CMTS session 1. Select Platform > General tab. 2. select the required slot. 3. Select the QAMs tab. 4. For the required RF Output, open the QAM Manager list and select M-CMTS. Once you select Applications > M-CMTS tab, the M-CMTS sessions appear and you can define their parameters. To configure an M-CMTS session When you configure a session, select the required input port and route it to the required output as instructed below: © 2012 Harmonic Inc. 98 NSG 9000-6G, Version 2.7, Rev B
Chapter 4 Configuring Applications M-CMTS Application 1. Select Applications > M-CMTS tab: Sessions appear in the table according to your QAM configuration in Platform > General > Slot > QAMs. Each session appears with a unique session ID. Session ID- Read only. A sequential number starting at 10000, to indicate the number of the session in the current page. NOTE: Steps 2&3 are relevant to primary DS channels only. In case of wideband sessions, move to step 4. 2. Relevant to primary DS channels only - To synchronize with the DTI time, select DTI Sync Restamping. The EdgeQAM re-stamps the DTI sync packets. 3. Relevant to primary DS channels only - In DOCSIS Sync Compensation, enter the sync compensation. The CMTS core router automatically inserts DOCSIS sync packets into the primary DS QAM channels. To ensure the accuracy of the DOCSIS sync packets, the EdgeQAM re-stamps them. Depending on RF network topology, it may be required to fine-tune the sync messages that flow over the various QAM channels of the EdgeQAM. The fine-tuning ensures consistent timing of CMs across all cable interfaces of the system. To fine-tune the sync offset across cable interfaces, use the DOCSIS Sync Compensation option. The sync offset units are ticks of the CMTS 10.24 MHz clock, where 1 tick=97.6 nano-sec. The typical allowed offset difference between modems is +/- 6 ticks. To define the sync compensation value, measure the average Cable Modem (CM) timing offset difference (you can view the timing offset values via the CMTS console) and calculate the desired compensation value for the QAMs of the port. Typically, the compensation value of adjacent QAMs in the port is identical for each QAM in the port. 4. To select the input GbE Port, open the GbE Port list and select the required port. Once you defined the required GbE port, the GbE IP Address box is updated to display the IP address of the selected port. 5. In GbE IP Address, enter the IP address of the GbE input port. 6. In L2TP Session ID, enter the required session ID. 7. View the following Read-only information: In RF Output, view the QAM channel to output the session where: X – module number (1…9) Y – RF port number (1…2) Z – channel number (1…144) QAM Index - see Configuring/Viewing QAM Channels on page 49. Interleaver - see Configuring/Viewing QAM Channels on page 49. © 2012 Harmonic Inc. 99 NSG 9000-6G, Version 2.7, Rev B
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NSG 9000-6G Narrowcast Services Gat
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Chapter 1 Features and Specificatio
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NSG 9000-6G - Harmonic Inc

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