T3 Module/Router 3845

[Soufiane Adil]

Hi 

I have a T3 Module installed on Cisco router 3845, I see that there is no loopback configured but the LP LED is YELLOW 

Any idea why it's not GREEN?

Sou

[Nikhil Kapoor · Accepted solution]

Hi Soufiane, 

Below table may answer you query. 

Table 3. LED Port Indicators and Status

LED Indicator	Color	Active State Description
CD	Green	Loopback mode on
LP	Yellow	Port is receiving AIS
AIS	Yellow	Port is receiving FERF signal
FERF	Yellow	Network module is enabled
EN	Yellow	Port is receiving OOF errors
Alarm	Yellow	Loopback mode on

Link : http://www.cisco.com/c/en/us/products/collateral/interfaces-modules/2600-3600-3700-series-t3-e3-network-module/product_data_sheet09186a008010fba2.html

Above link for T3 Datasheet providing detail explanation.

HTH,

Nikhil