if your question is regarding LED to the left of power supply LED at front panel, then it is the SYSTEM LED. If it is amber, it means Router is receiving power but not functioning properly. Possible power-on self-test error or over-temperature condition detected.
if you are referring to some other LED, then this URL can help which give you information of LEDs at front and rear panel of 3660 router.
We are pleased to announce availability of Beta software for 16.6.3.
16.6.3 will be the second rebuild on the 16.6 release train targeted
towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are
looking for early feedback from customers befor...
Introduction Featured Speakers Luis Espejel is the Telecommunications
Manager of IENova, an Oil & Gas company. Currently he works with Cisco
IOS® and Cisco IOS XE platforms, and NX to some extent. He has also
worked as a Senior Engineer with the Routing P...
In this session you can learn more about Layer 3 multicast and the best
practices to identify possible threats and take security measures. It
provides an overview of basic multicast, the best security practices for
use of this technology, and recommendati...