User Manual

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Fault isolation overview
This section describes the fault isolation features of the network.
Using SNMP server to receive and report trap information
The network access provider can use an SNMP management station. This station reports all
abnormal system conditions. Based on the severity of the event, the SNMP management
system issues visual, audio, email and paging alerts.
Using Syslog to receive system information
The base stations and CPEs use Syslog to record system information to a remote Syslog
server for processing. Network access providers configure which remote server will handle
the Syslog messages.
The following levels of Syslog messages are supported: emergency, error, warning, notice, and
debug.
Using the AP server interface to monitor base station and
ISP network activity
The network access provider can monitor network activity and diagnose network problems
by using the AP server interface. This web-based interface allows service providers to
monitor base station statistics such as the records that were successfully handled by the base
station and how many requests for network access that the base station received.
Information about specific ISPs and how many requests for network access have been
recorded for a specific ISP also appears in the AP server interface.
Network access providers can see detailed log files for all CPEs that were allowed network
access and for CPEs that were denied network access. Details in the log files include the date
of the network registration request, the base station with which the CPE is registered, and
how many hosts the CPE is allowed to serve.
For more information about this feature, refer to “Monitoring ISPs and base stations” on
page 3-25.
Remote CPE diagnostics
For CPEs, ISPs can use the provisioning server interface to show information about CPEs
such as their serial number, the host computers they serve, the IP addresses assigned to the
host computers, and the base station that serves the CPE.
The provisioning server interface allows ISPs to establish an SNMP session with a specific
CPE, in order to retrieve diagnostic information from the CPE. For more information about
this feature, refer to the guide “Configuring and Monitoring the ISP Network”.
Network access providers can also use the ElementManager or other SNMP tool to access
information about a particular CPE.