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EtherHub 1500 System User’s Guide
4-14 Setup and Configuration
Setting the External Configure Buttons
Use the Push Button command in the Control Menu to disable
or enable the Configure button on any hub.
Performance Menu
Displays statistics for the System (entire stack), selected
Segment, selected Hub, or all Ports on a specified hub. (Select
any segment or hub using the <F4> and <F5> function keys.)
Variable
Description
1
Frames
Number of frames passing through this device.
Bytes
Number of bytes passing through this device.
Collisions
Number of simultaneous node transmissions detected by this device.
Allig
nm
ent Errors
Number of mis-synchronized data packets detected by this device.
CRC Errors
Number of Ethernet Cyclic Redundancy Code errors detected by this device.
Total Errors
Total number of errors, including FCS, allignment, FramesTooLong, ShortEvents, LateEvents,
Jabber, and DataRateMismatches detected on this device.
1 - The values displayed have been accumulated since the last system reboot or counter reset.
Threshold Menu
Select the Threshold command from the menu bar to define
limits for the parameters monitored by the hub system. Limits
can be set for the System (entire stack), Any H
ub or Any Port, or
a Select Hub or Select Port. Variables to monitor include
frames, bytes, collisions, frame allignment errors, CRC errors
or total errors. High and low watermarks may be set. While
the trigger action includes warning, warning and isolate (for
hubs), or warning and disable (for ports). When any threshold
is exceeded, the agent will issue an alarm to the network
management station based on the selected action.