编辑: 南门路口 | 2015-08-20 |
7192093 Flag:
0 Scheduled minislot count :
7192182 Flag:
0 注意:?如果无法修复错误的数量比1极大在10,000很可能脉冲噪声存在. 在CM的最佳输入功率电平是0dBmV,接收方有范围-15dBmv对+15dBmV.这可以由光谱分析程序 测量.如果电源太低您可能需要根据Cisco uBR7200系列硬件安装指南配置升频器.如果太强信号 的is is您可能然后需要添加更多衰减在高频率的端口连接.如果一个特定的频率有许多噪声存在 ,您在光谱里可能需要选择另一个频率. 注意:?ubr7100有一个集成上行变频器.参考设置集成上行变频器欲知更多信息. 警告:?如果问题只影响一或两三调制解调器,当正确地操作几其他的调制解调器,则它是不太可能 问题在升频器侧.更改升频器配置,当这发生时能严重降低网络的其余. 要确认CM未能达到QAM锁定请打开您应该看到输出类似于以下的debug cable-modem mac log verbose : 5w0d: 3084365.172 CMAC_LOG_STATE_CHANGE ds_channel_scannie 5w0d: 3084365.172 CMAC_LOG_WILL_SEARCH_DS_FREQUENCY_BAND 99/805790200/99770 5w0d: 3084365.176 CMAC_LOG_WILL_SEARCH_DS_FREQUENCY_BAND 98/601780000/79970 5w0d: 3084365.176 CMAC_LOG_WILL_SEARCH_DS_FREQUENCY_BAND 97/403770100/59570 5w0d: 3084365.176 CMAC_LOG_WILL_SEARCH_DS_FREQUENCY_BAND 96/73753600/115750 5w0d: 3084365.180 CMAC_LOG_WILL_SEARCH_DS_FREQUENCY_BAND 95/217760800/39770 5w0d: 3084365.180 CMAC_LOG_WILL_SEARCH_DS_FREQUENCY_BAND 94/121756000/16970 5w0d: 3084365.180 CMAC_LOG_WILL_SEARCH_DS_FREQUENCY_BAND 93/175758700/21170 5w0d: 3084365.184 CMAC_LOG_WILL_SEARCH_DS_FREQUENCY_BAND 92/79753900/857540 5w0d: 3084365.184 CMAC_LOG_WILL_SEARCH_DS_FREQUENCY_BAND 91/55752700/677530 5w0d: 3084365.188 CMAC_LOG_WILL_SEARCH_DS_FREQUENCY_BAND 90/177000000/21300 5w0d: 3084365.188 CMAC_LOG_WILL_SEARCH_DS_FREQUENCY_BAND 89/219000000/22500 5w0d: 3084365.188 CMAC_LOG_WILL_SEARCH_DS_FREQUENCY_BAND 88/141000000/17100 5w0d: 3084365.192 CMAC_LOG_WILL_SEARCH_DS_FREQUENCY_BAND 87/135012500/13500 5w0d: 3084365.192 CMAC_LOG_WILL_SEARCH_DS_FREQUENCY_BAND 86/123012500/12900 5w0d: 3084365.192 CMAC_LOG_WILL_SEARCH_DS_FREQUENCY_BAND 85/405000000/44700 5w0d: 3084365.196 CMAC_LOG_WILL_SEARCH_DS_FREQUENCY_BAND 84/339012500/39900 5w0d: 3084365.196 CMAC_LOG_WILL_SEARCH_DS_FREQUENCY_BAND 83/333025000/33300 5w0d: 3084365.200 CMAC_LOG_WILL_SEARCH_DS_FREQUENCY_BAND 82/231012500/32700 5w0d: 3084365.200 CMAC_LOG_WILL_SEARCH_DS_FREQUENCY_BAND 81/111025000/11700 5w0d: 3084365.200 CMAC_LOG_WILL_SEARCH_DS_FREQUENCY_BAND 80/93000000/105000 5w0d: 3084365.204 CMAC_LOG_WILL_SEARCH_DS_FREQUENCY_BAND 79/453000000/85500 5w0d: 3084365.204 CMAC_LOG_WILL_SEARCH_SAVED_DS_FREQUENCY
453000000 5w0d: 3084366.324 CMAC_LOG_DS_NO_QAM_FEC_LOCK
453000000 5w0d: 3084366.324 CMAC_LOG_DS_TUNER_KEEPALIVE 5w0d: 3084367.440 CMAC_LOG_DS_NO_QAM_FEC_LOCK
453000000 5w0d: 3084368.556 CMAC_LOG_DS_NO_QAM_FEC_LOCK
453000000 5w0d: 3084369.672 CMAC_LOG_DS_NO_QAM_FEC_LOCK
459000000 5w0d: 3084370.788 CMAC_LOG_DS_NO_QAM_FEC_LOCK
465000000 5w0d: 3084371.904 CMAC_LOG_DS_NO_QAM_FEC_LOCK
471000000 5w0d: 3084373.020 CMAC_LOG_DS_NO_QAM_FEC_LOCK
477000000 5w0d: 3084374.136 CMAC_LOG_DS_NO_QAM_FEC_LOCK
483000000 5w0d: 3084375.252 CMAC_LOG_DS_NO_QAM_FEC_LOCK
489000000 5w0d: 3084376.368 CMAC_LOG_DS_NO_QAM_FEC_LOCK
495000000 5w0d: 3084376.368 CMAC_LOG_DS_TUNER_KEEPALIVE 5w0d: 3084377.484 CMAC_LOG_DS_NO_QAM_FEC_LOCK
501000000 5w0d: 3084378.600 CMAC_LOG_DS_NO_QAM_FEC_LOCK
507000000 5w0d: 3084379.716 CMAC_LOG_DS_NO_QAM_FEC_LOCK
513000000 5w0d: 3084380.832 CMAC_LOG_DS_NO_QAM_FEC_LOCK