EtherHub 1500 System User’s Guide
Parameter
Frame
Bytes
Collisions
Alignments
CRCs
Total Errors
To set thresholds,
1.Open the Threshold dialog box from the menu bar.
2.Select the system component (Type: System, Any Hub, Any Port, Select Hub, Select Port). If you choose Select Hub or Select Port, then choose the Hub ID or Port ID using the <F2> function key.
3.Select the variable to monitor (Variable: Frames, Bytes, Collisions, Allignments, CRCs or Total Errors). If you choose Select Hub or Select Port, then choose the variable Type using the <F2> function key.
4.Input a decimal value for the low and high watermarks.
5.Select the appropriate action (Action: INACTIVE, WARNING, WARNING & ISOLATE for hubs, or WARNING & DISABLE for ports).
6.Implement your settings by pressing the <F3> function key.
Available Threshold Parameters for Hubs and Ports
Description
The total number of frames.
The total number of bytes.
Multiple packets transmitted over a medium at the same time, making them unintelligible.
Frame alignment errors occur when the received frame is a multiple of 8 bits.
This error occurs when the cyclic redundancy code for a frame is wrong.
(The cyclic redundancy code an
The total number of collisions, frame alignment errors and CRC errors.
T: triggered N: not triggered
T | N | T |
H
L
Event Activation
After initial event activation (i.e., crossing the high watermark), the monitored variable must reach the low watermark before another event is activated (i.e., again crossing the high watermark).
Notes about the hub and port threshold parameters,
∙The rate for all values is per one second.
∙Threshold entries are stored in the agent.
Setup and Configuration |
