Download from the Diagnostics menu

Connexium Managed
Switches
Diagnostics
June 2010
Connexium Managed Switch
Diagnostic Capabilities
● The Connexium Managed Switches include a wide selection of
diagnostic tools that simplify the maintenance and setup of an Ethernet
network
● These diagnostic capabilities range from indicator lights that provide
local status on switch operation to event logging that includes time
stamping of up to 2000 events.
● With the web based switch configurator, you can select the diagnostic
capabilities that best suit your application and facility requirements.
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Connexium Managed Switch
Diagnostic Capabilities - Summary
● Event Log Files - HTML file that logs up to 2000 events, with a time stamp that
contains system information and port statistics
● LED Indicators - For power, link/activity, fault detection and redundancy
manager.
● Alarm Relay - External relay contact that alarms on configured switch status,
such as power source error detection, temperature, ring redundancy,
connection error detection etc.
● SNMP Traps - You can configure switch to send SNMP traps for configured
switch parameters to a device; you need to use a network management
software that supports SNMP traps.
● Port Mirroring - Copies data passing through one port (source) to another port
to allow troubleshooting with a network protocol analysis tool.
● IEEE 802.1ab Topology Discovery - Enables the automatic detection of
devices and network topology mapping.
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Diagnostics
Event Log Files
● Event Log capability does not require configuration
● Accessed through switch web page
● Switch logs events and system information that includes a time stamp
● Up to 2000 events can be logged
● Log information is not lost if switch is reset
● First step, select Diagnostics from Switch Web Server menu
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Diagnostics
Event Log Files
● Select Event Log from the Diagnostic menu to see the Event Log web
page
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Diagnostics
Port Statistics
● The Port Statistics option provides the event counters for each of the
switches ports.
● Select Statistics from the Port menu
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Diagnostics
Port Utilization
● Web page displays the network load of the individual ports.
● Select Utilization from the Port menu
● Use the Lower Threshold (%) and Upper Threshold (%) fields to
enter lower and upper threshold monitor levels for each port
● An Alarm field check mark is set if the upper threshold (%) value is
exceeded
● If the network load falls below the lower threshold value, the previously
set check mark is removed
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Diagnostics
Topology Discovery
● Link Layer Discovery Protocol (LLDP), per the IEEE 802.1AB standard
● LLDP allows automatic detection of the network topology
● Connection information includes MAC address of the device and a port
ID that is unique to this device
● The contents of the connection and management information includes:
● Chassis ID (its MAC address)
●
●
●
●
Port ID (its port MAC address)
Description of the port
System name
System description
● LLDP information enables network management station to map the
topology of the network.
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Diagnostics
Topology Discovery
● Select Network Topology from the Diagnostics menu
● From the Configuration pull down menu, select operation On/Off
● Operation On: the Topology table will display the information from
connected devices
● Operation Off: The network management stations and Ethernet
configuration tool will not discover the switch
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Diagnostics
Port Mirroring
● With port mirroring, data traffic to one port (source) is copied to another
port (destination).
● Allows the monitoring tool (RMON probe) to analyse traffic from the
source port
● The destination port forwards data to be sent and blocks received data
● A typical port mirroring hardware configuration is shown below:
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Diagnostics
Port Mirroring
● The assignments for the source and destination ports can be defined
through the selection shown below, as part of the switch web based
configuration
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Diagnostics
Device Status
● The Web Page allows the selection of the functions to be monitored:
● Power Supply
● Switch Temperature
● Backup Memory Module Removed
● Connection Error
● HIPER-Ring
● Ring/Network Coupling
● Indicates the overall Device Status / Error Condition if any of the
selected functions have detected an error
● The “Generate Trap” selection activates the sending of a trap if a
function being monitored changes state
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Diagnostics
Device Status
● Select Device Status from the Diagnostic menu:
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Diagnostics
Device Status
● System alarm information is shown in the Device Status window on the
System Web page
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Diagnostics
LED Indicators
● Front mounted LED indicators provide local status on the switch’s
operation and status information
● Below are the indicators and their functions
Indicator
P
RM
Stand-By
Fault
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Function
Power On/Off
Ring Manager active/ not active,
redundant port enabled/ disabled
Stand-By Mode enabled/not enabled
Alarm Contact Open/Closed
R1
Alarm Contact 1 Open/Closed
R2
Alarm Contact 2 Open/Closed
Fiber Ports
Fiber Port Communication Status
Copper Port
Copper Port Communication Status
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Diagnostics
Fault Alarm Contact
● Normally Closed (NC) Relay Contact
● Alarm Contact “Opens” for any of the following conditions when
selected to be monitored
● When one of the power sources fails or falls below threshold voltage level
● Loss of communication connection on 1 port
● Loss of ring redundancy reserve
● An error detected during the self-test
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Diagnostics
Signal Contact Options
● On the Signal Contact web page, you can select the switch conditions
that will be monitored by the alarm contact.
● Includes a selection for manual contact operation where Open and
Closed states can be set from the web page
● The Device Status selection monitors all components of the switch, deenergizing the contact if an error is detected
● Selecting Generate Trap will create a trap when alarm contact is deenergized
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Diagnostics
Signal Contact Options
● Select Signal Contact from the Diagnostics menu
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Diagnostics
Alarm (Traps)
● Lets you select the events in the Switch that will trigger an alarm (trap)
and the management station (PC) where these alarms will be sent
● If you select Create Entry, you can enter the IP address of the
management station.
● Alarm selections include:
● Authentication – Switch has rejected an unauthorized access attempt
● Link Up/Down – For 1 port on the switch, the link to a device has been
established/interrupted
● Spanning Tree – The topology of the Rapid Spanning Tree has changed
● Chassis – Status of the components of the switch
● Redundancy – The status of the ring redundancy or the redundant
ring/network coupling has changed
● Port Security – A switch port has received a data packet from an
unauthorized device
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Diagnostics
Alarm (Traps)
● Select Alarm (Traps) from the Diagnostics menu
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Diagnostics
SNMP Traps
● Ability to immediately trap alarm conditions in the switch, not relying on
a polling process.
● The trapped alarms can be sent to a management station that is
defined in the switch configuration
● Alarms can be sent to a trap destination table configured via SNMP in
the user defined management station
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Diagnostics
SNMP Traps
● The Network Management Station to which the traps are sent can be
defined through the selection shown below, as part of the switch web
based configuration.
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Diagnostics
SNMP Traps
● Selectable Alarm Triggering Events. User selected alarm triggering
based on the following events.
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Diagnostics
IP Address Conflict Detection
● The ability to detect and eliminate IP address conflicts within the subnetwork that includes the switch.
● A web page allows the following selections:
● Enable - Selects both active and passive detection
● Disable – IP address conflict function is turned off
● Active Detection Only - If an IP address is detected, the switch will return
to the previous ?, and make another attempt after 15 seconds
● Passive Detection Only - Listens passively to determine if the switches IP
address already exists, and defends its address by employing the ACD
(Address Conflict Detection) mechanism and sending out gratuitous ARPs.
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Diagnostics
IP Address Conflict Detection
● Select IP Address Conflict Detection from the Diagnostics menu
● From the Status pull down menu, select the Status Mode option
● Any IP address conflicts will be logged on the web page
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Questions?
Make the most of your energy
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