Cisco ATA188-I2-A Administration Guide - Page 184

Using System Diagnostics Chapter 9 Troubleshooting Syntax Definitions • Priority means the facility and severity values for a specific syslog message. Priority = (facility value) * 8 + (severity value). Facility and severity definitions and values are supplied in RFC-3164; these values can be calculated if you know the priority value. • Time_offset means the time elapsed since the most recent Cisco ATA reset. If the time offset is less than 24 hours, this value is shown as: hh:mm:ss If the time offset is more than 24 hours, this value is shown as: dd hh:mm:ss where the first d is the number of days elapsed since the most recent reset, and the second d is the letter d. • ATA_IP means the IP address of ATA. • tag means the tag number of the syslog message. Each tag number corresponds to a particular type of message, such as an ARP message. You can turn on tracing for each type of message you want captured by configuring the Cisco ATA parameter syslogCtrl. For more information about the syslogCtrl parameter and for a complete listing of tag numbers and their corresponding message types, see the "SyslogCtrl" section on page 5-62. Syslog information is sent to the syslog server that you configure by means of the Cisco ATA syslogIP parameter. For more information, see the "SyslogIP" section on page 5-61. • ch means the active line of the Cisco ATA. System-level messages do not contain a ch field. • Message means the syslog message. (See RFC-3164 for message formats and how to interpret the meaning of each syslog message.) The following examples show some of the different types of messages that syslog reports. Example-ARP Message 00:00:51 192.168.3.169 [00]:ARP Update: MAC:080017014e00, IP:192.168.2.81 This message includes the following information: • Priority=62, which means that the facility value is 7 (network new subsystem) and the severity value is 6 ( informational messages). You can derive this information from RFC-3164. • The time offset is 00:00:51, which means that the most recent Cisco ATA reset was 51 seconds earlier. • The IP address of the Cisco ATA is 192.168.3.169 • The tag value is 00, which corresponds to ARP messages. This is derived from Table 5-9 on page 5-62. • The message itself begins with ARP Update and can be interpreted by means of RFC-3164. Example-DHCP Messages 00:04:00 192.168.3.140 [01]:DHCP Reg: Srv:192.168.2.1 lease:120 00:02:31 192.168.2.253 [01]:DHCP's sm: 255.255.254.0 00:02:31 192.168.2.253 [01]:DHCP's rt: 192.168.3.254 These messages include the following information: Cisco ATA 186 and Cisco ATA 188 Analog Telephone Adaptor Administrator's Guide for H.323 (version 3.0) 9-6 OL-4804-01