This can be achieved using STP (spanning tree) which is automatically enabled on switches. This protocol ensures that there is no loop in a switched network, but also provides redundancy (assuming multiple links and loop). In your design you will have to tune the default settings to force the root bridge election to result the primary 4006 top become the root bridge.
If the interconnection links are trunk and your switches support pvst (per vlan spanning tree) then you have the options to load balance the traffic through the primary and backup links.
You can also set up a port-channel. That way you can take advantage of using both interfaces at the same time, if one of the interfaces goes down the port-channel won't stop working and the network will be stable.
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...