Switch Port Colour Codes

[matthewbevan]

Hi Guys,

Firstly, yes I know this is a really fundamental question but his forum is the fastest and most trusworthy source of cisco knowledge Ive found to date!

What exactly do the following colours on the port LED's mean:

no light.

solid orange.

flashing orange.

solid green.

flashing green.

Thanks in advance.Matt

[John Blakley]

I'll have a shot at this :)

no light - no link, port shut

solid orange - Not sure I've ever seen a solid orange

flashing orange - can be stp negotiation (listening/learning stages before going to forwarding), error on port (mismatched duplex)

solid green - Link no activity

flashing green - activity on the link

HTH,

John

[Ang3luZevallo5]

hii jhon!
i have a trouble with the spanning tree vlan
and its the second time that it put in solid green
,,, it already in ethernet channel
how can i troubleshooting?

[Leo Laohoo · Accepted solution]

Lemme try and depending on the model of your switch ...

no light - no remote connection or port in shutdown (except for 6500)

solid orange - port in error disable, spanning-tree negotiation, Trunk to access port mismatch or switch may have a faulty port. Port is shutdown for a 6500.

flashing orange - Depending on your switch, 2900/3500 means duplex mismatch error.

flashing green - port working fine.

Hope this helps. Please rate when applicable.

[Jeff Bryan]

can you help me with this

[CSCO11167812]

Also for the 3550 and I think the other ones.

solid orange -- no vlan present -- ie; vlan 100 assigned to a port but not present on the vlan database

[Leo Laohoo]

Thanks for the rating.

[vivekakheniya]

Sir, one port in my switch shows amber color from one side but green on another side.In Switch 8.

[kolawole82429]

Probably blocked by STP. You can investigate that first.

[rasmus.elmholt]

Hi
I know the question has been answered but I think it is always a good idea to reference the official documentation.
See Table 8 for Led status on the 2960-series switch:
https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst2960x/hardware/installation/guide/b_c2960x_hig/b_c2960x_hig_chapter_01.html

[Gilbert Wong]

I add one point.

One of solid orange resons is the 802.1x global configuration. If you enable 802.1x authentication on interface, please comfirm your 802.1x global configuration is correct . Otherwise, there are solid orange light in all authenticated interaface and no any indicator in SW user mode. Not to mention err disabled.