Allied Telesis SwitchBlade x3100 Series Manual page 873

8. Alarms and Troubleshooting
8.1 Introduction
This chapter describes the SBx3112 alarm system and includes alarm clearing and troubleshooting procedures
for the SBx3112 switch. For any system card, a basic troubleshooting assumption is that the card is correctly
provisioned, is providing service (Administrative and Operational States are both UP), and a problem has
occurred that may affect service.
To increase reliability, the system can be provisioned with redundant network interfaces. If a failure occurs on
one interface, the other interface will continue to provide service through the use of features such as Spanning
Tree Protocol (STP), Link Aggregation Group (LAG), and Ethernet Protection Switched Ring (EPSR).
The system will automatically recover from severe software faults. If the software can no longer process applica-
tion data, the system will initiate recovery methods that may involve reloading the system.
The system continuously monitors system cards and their interfaces. When anomalies are discovered, the fol-
lowing indications are generated to alert the user:
System logs - Logs are displayed using the SHOW LOG command. System management logs can be
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output to a server where they can be analyzed.
Traps - The system uses Simple Network Management Protocol (SNMP) to allow management devices
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(using an SNMP-enabled MIB browser) to query the Managed Information Base (MIB) of a device or a set
of devices, and to receive unsolicited messages (traps) from the device for critical events.
Visual alarms - The light-emitting diodes (LED) of the associated card(s) are illuminated.
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The chapter is organized as follows:
Alarm System Features
Alarm Command List
Troubleshooting the SBx3112 (Diagnostics)
Diagnostics Command list
Maintenance Audits
TRACEROUTE
TRACEROUTE Command List
IGMP Trace
Software Reference for SwitchBlade x3100 Series Switches (Alarms and Troubleshooting)
8-1