Fast EtherHub 3500 System User’s Guide
SNMP
Color: Green
Label: SNMP
Function: Indicates that an SNMP frame is being received by the Agent.
LED Activity
BLINKING LIGHT
NO LIGHT
Condition
ON
OFF
Indication
Hub is presently receiving an SNMP frame.
Hub is not receiving an SNMP frame.
Table 5.5 SNMP Indicator
In a stacked system where a Master and Slave agent exist, the SNMP LED of the active agent will blink if an SNMP frame is received. Normally, this would mean that the Master agent’s SNMP LED will be ON. However, if the Master agent fails, the Slave agent’s SNMP LED should light up. See the section on Master Agent in Chapter 4 for related information.
Segment Indicators
Color: Green
Label: Segment
Function: Indicates which segment is attached to the hub
There are 3 Ethernet segments embedded in the FlexBus 3500 ports located on the backplane of the Fast EtherHub 3500 series. These units can be attached to any one of the three Ethernet segments (or may be completely isolated from the backplane). The indicators show which segment the unit is connected to.
ΦThe Fast EtherHubs can be completely isolated except for the management channel (in which case all segment indicators will be extinguished).
If a segment LED is flashing, this indicates that the FlexBus cable is not securely plugged into the backplane connector, or the backplane connection has malfunctioned.
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