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New Member

What kind of information give me a LED of port on a switch or Router?

I would to ask:

What kind of information give me a LED of port on a switch or Router?

4 REPLIES
Silver

What kind of information give me a LED of port on a switch or Ro

ZogoHUN01 wrote:

I would to ask:

What kind of information give me a LED of port on a switch or Router?

How long is a piece of string?

It depends on the router/switch/module type as to what each LED means.

On a basic, single RU, single unit switch, the port LED's usually indicate connectivity, speed or duplex - but may indicate other things, depending on the position of front panel pushbuttons (2950's, for example, toggle through several different status displays using a front panel "mode" push button).

What kind of device are you asking for information on?

Cheers.

New Member

What kind of information give me a LED of port on a switch or Ro

Thanks your answer!

We use 3400 and 3750 switches in our network.

And I would to know: what does mean if the port status LED is green or amber, maybe it doesn't light?

Silver

What kind of information give me a LED of port on a switch or Ro

ZogoHUN01 wrote:

Thanks your answer!

We use 3400 and 3750 switches in our network.

And I would to know: what does mean if the port status LED is green or amber, maybe it doesn't light?

Find information on the 3750 here

http://www.cisco.com/en/US/docs/switches/lan/catalyst3750/hardware/installation/guide/HIGOVERV.html#wpxref39834

For ports, in the default (port status) mode, the LED colours mean as follows

LED Off : Port disconnected or administratively shut down

LED Green : Port link active

LED Green flashing : Port active (data flowing)

LED flashing green/amber : Link faulty. Port receiving errors - CRC, excessive jabber, alignment errors etc

LED Solid Amber : Port blocked by STP (either in learning mode or blocked owing to dual path), and not forwarding traffic

LED Blinking Amber : Port blocked by STP and sending/receiving packets

The information for the 3400 switch is here

http://www.cisco.com/en/US/docs/switches/metro/me3400/hardware/installation/guide/HIGOVERV.html#wp1269133

But the meanings are pretty much the same as the 3750.

Cheers.

(Please mark question answered if it is to your satisifaction)

New Member

What kind of information give me a LED of port on a switch or Ro

Thank you!

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