Cisco 2960-CG port flashing from green to amber?

[j0e_average]

FNG - I've got one port that's supposed to be set to auto auto, and the led is flashing green very rapidly. So I'm guessing it's setup right.  And, I've got one port toggling between green and amber.  This port is supposed to be set at 100Mbs and full duplex.  Does this indicate a problem? Or does it indicate the port is set to 100Mbs?  I've only got the two ports in use.

[Masoud Pourshabanian]

Hello,

It means you have error in the link. What is connected to that port? Try to replace its cable.

Masoud

[j0e_average]

Thanks for the info.

[saif musa · Accepted solution]

Hi,

STAT (port status)	Off	No link, or port was administratively shut down.
	Green	Link present.
	Blinking green	Activity. Port is sending or receiving data.
	Alternating green-amber	Link fault. Error frames can affect connectivity, and errors such as excessive collisions, cyclic redundancy check (CRC) errors, and alignment and jabber errors are monitored for a link-fault indication.
	Amber	Port is blocked by Spanning Tree Protocol (STP) and is not forwarding data. Note After a port is reconfigured, the port LED can remain amber for up to 30 seconds as STP checks the network topology for possible loops.
	Blinking amber	Port is blocked by STP and is not sending or receiving packets.

Hope that help..

Please rate if its helpfull

Regards

[msvsafaf@gmail.com]

Hello, I am in a different problem,i.e Indicator light of my cisco L2 switch is showing Green light alternately (there is a one second gape between each blink), And internet also not available. Please give a solution to solve this problem

[j0e_average]

Thanks for the information.  Just what I needed.