IBM 8237, Инструкция по установке и эксплуатации

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8237 Hub Installation and Planning Guide
Table 3-1. (Page 1 of 2). Status LED Explanations
LED State Explanation
EtherWatch utilization bar
(Green) On The percentage of network bandwidth being used is
indicated by the five LEDs as follows:
or 1 1% utilization (green)
(Yellow) 2 4% utilization (green)
3 16% utilization (green)
4 32% utilization (yellow)
5 64% utilization (yellow)
These LEDs turn on in a manner similar to a bar
graph. For example, if LEDs 1, 2, and 3 are on and
LEDs 4 and 5 are off, network utilization is
somewhere between 16% and 32%.
Off The hub is experiencing less than 1% utilization.
EtherWatch collision bar
(Green)
or
On The hub has detected collisions on one or more of
its ports. The five LEDs indicate the following
collision rates:
(Yellow) 1 1% collisions (green)
2 3% collisions (green)
3 5% collisions (green)
4 10% collisions (yellow)
5 15% or more collisions (yellow)
These LEDs turn on in a manner similar to a bar
graph. For example, if LEDs 1, 2, and 3 are on and
LEDs 4 and 5 are off, the collision rate is
somewhere between 5% and 10%.
Off No collisions are occurring.
Prim
(Green)
On The unit has the SMNP management agent
installed and is functioning as the primary
management unit in its backplane.
Off There is no management agent installed, or an
installed management agent has failed.
Bkup
(Green)
On The unit has the SMNP management agent
installed and is functioning as a backup
management unit in its backplane.
Off There is no management agent installed, or an
installed management agent has failed.
RMON
(Green)
On The unit has the RMON management agent
installed and the agent is functioning normally.
Off There is no RMON management agent installed, or
an installed RMON agent has failed.