Cisco Broadband Cable Command Reference Guide

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show controllers cable-modem mac 5-96 Cisco Broadband Cable Command Reference Guide Chapter 5 Cable CPE Commands 00:14:33: 873.386 CMAC_LOG_RNG_REQ_TRANSMITTED 00:14:33: 873.388 CMAC_LOG_RNG_RSP_MSG_RCVD 00:14:33: 873.386 CMAC_LOG_RNG_REQ_TRANSMITTED 00:14:33: 873.392 CMAC_LOG_RNG_RSP_MSG_RCVD 00:14:33: 873.396 CMAC_LOG_WATCHDOG_TIMER 00:14:33: 873.398 CMAC_LOG_RESET_DHCP_WATCHDOG_EXPIRED 00:14:33: 873.402 CMAC_LOG_STATE_CHANGE reset_interface_state 00:14:33: 873.406 CMAC_LOG_DHCP_PROCESS_KILLED Router# In this situation, use the MAC error display also contains information indicating that the DHCP server could not be reached: Router# show controllers cable-modem 0 mac errors 497989.804 D01.0 Discover sent no Offer received. No available DHCP Server. 498024.046 D01.0 Discover sent no Offer received. No available DHCP Server. 498058.284 D01.0 Discover sent no Offer received. No available DHCP Server. Router# The following is a typical display of the MAC error log information, which is the same information that is also available using SNMP: Router# show controllers cable-modem 0 mac errors 74373.574 R02.0 No Ranging Response received. T3 time-out. 74374.660 R02.0 No Ranging Response received. T3 time-out. 74375.508 R02.0 No Ranging Response received. T3 time-out. 74375.748 R02.0 No Ranging Response received. T3 time-out. 74375.748 R03.0 Ranging Request Retries exhausted. 74376.112 R02.0 No Ranging Response received. T3 time-out. 74376.354 R02.0 No Ranging Response received. T3 time-out. 74376.778 R02.0 No Ranging Response received. T3 time-out. 74377.442 R02.0 No Ranging Response received. T3 time-out. Router# This output indicates that the router acquired a downstream lock, successfully read a UCD, and successfully read a MAP. However, it was unable to communicate with the CMTS after ranging through all upstream transmit power levels. The router will try to communicate with the CMTS 16 times, and if cannot receive a response from the CMTS, it will reset the cable interface to try to find a better downstream frequency. The show controllers cable-modem 0 mac resets command shows only the entries in the MAC log that begin with the field CMAC_LOG_RESET. These fields provide you with a summary of the most recent reasons why the cable interface was reset. Reset messages and brief explanations are included in the following examples. However, the reset messages do not commonly occur. The following example shows the errors that are logged when the configuration file downloaded from the TFTP server could not be read, typically because the file might not exist, or because the file might have incorrect permissions. Router# show controllers cable-modem 0 mac resets 62526.114 CMAC_LOG_RESET_CONFIG_FILE_READ_FAILED 62564.368 CMAC_LOG_RESET_T4_EXPIRED 62677.178 CMAC_LOG_RESET_CONFIG_FILE_READ_FAILED 62717.462 CMAC_LOG_RESET_CONFIG_FILE_READ_FAILED 62757.746 CMAC_LOG_RESET_CONFIG_FILE_READ_FAILED 62796.000 CMAC_LOG_RESET_T4_EXPIRED 62908.808 CMAC_LOG_RESET_CONFIG_FILE_READ_FAILED 62949.092 CMAC_LOG_RESET_CONFIG_FILE_READ_FAILED OL-1581-05
Chapter 5 Cable CPE Commands OL-1581-05 62989.380 CMAC_LOG_RESET_CONFIG_FILE_READ_FAILED 63029.662 CMAC_LOG_RESET_CONFIG_FILE_READ_FAILED 63069.944 CMAC_LOG_RESET_CONFIG_FILE_READ_FAILED 63110.228 CMAC_LOG_RESET_CONFIG_FILE_READ_FAILED 63148.484 CMAC_LOG_RESET_T4_EXPIRED 63261.296 CMAC_LOG_RESET_CONFIG_FILE_READ_FAILED Router# show controllers cable-modem mac The following example shows that the DHCP server could not be reached, or that it took too long to respond. Router# show controllers cable-modem 0 mac resets 497989.804 CMAC_LOG_RESET_DHCP_WATCHDOG_EXPIRED 498024.046 CMAC_LOG_RESET_DHCP_WATCHDOG_EXPIRED 498058.284 CMAC_LOG_RESET_DHCP_WATCHDOG_EXPIRED Router# The following example indicates that an event in the cable interface driver caused the interface to reset. This often occurs because a shutdown command was just issued on the interface. Router# show controllers cable-modem 0 mac resets 527986.444 CMAC_LOG_RESET_FROM_DRIVER 528302.042 CMAC_LOG_RESET_FROM_DRIVER 528346.600 CMAC_LOG_RESET_FROM_DRIVER 528444.494 CMAC_LOG_RESET_FROM_DRIVER Router# Table 5-10 describes the status messages that can appear in the show controllers cable-modem mac resets command. Table 5-10 show controllers cable-modem mac resets Field Descriptions Message Description CMAC_LOG_RESET_CONFIG_FILE_PARSE_FAILED The format of the DOCSIS configuration file acquired from the TFTP server is not acceptable. CMAC_LOG_RESET_LOSS_OF_SYNC Synchronization with the CMTS has been lost (SYNC messages are not being received). CMAC_LOG_RESET_T4_EXPIRED The maintenance ranging opportunities for this router are not being received from the CMTS. CMAC_LOG_RESET_DHCP_WATCHDOG_EXPIRED The DHCP server took too long to respond. CMAC_LOG_RESET_TOD_WATCHDOG_EXPIRED The Time-of-Day (ToD) server took too long to respond. CMAC_LOG_RESET_PRIVACY_WATCHDOG_EXPIRED The baseline privacy exchange with the CMTS took too long. CMAC_LOG_RESET_CHANGE_US_WATCHDOG_EXPIRED The router was unable to transmit a response to a UCC-REQ message. CMAC_LOG_RESET_SECURITY_WATCHDOG_EXPIRED A “full security” exchange with the CMTS took too long. CMAC_LOG_RESET_CONFIG_FILE_WATCHDOG_EXPIRED The TFTP server took too long to respond. CMAC_LOG_RESET_ALL_FREQUENCIES_SEARCHED All downstream frequencies to be searched have been searched. Note This message indicates that downstream frequencies were found, but the router failed to acquire a downstream lock. CMAC_LOG_RESET_T2_EXPIRED Initial ranging opportunities are not being received. Cisco Broadband Cable Command Reference Guide 5-97
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Cisco Broadband Cable Command Refer
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OL-1581-05 Preface v Document Objec
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Preface OL-1581-05 Cisco Broadband
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