A company has deployed four 48-port access layer switches to a switch block. For redundancy each access layer switch will connect to two distribution layer switches. Additionally, link aggregation will be used to combine 10 Gbps interfaces to form 20 Gbps trunk links from the access layer switches to the distribution layer switches. How many switch ports on the access layer switches will be available in the switch block to support end devices?

The answer is "176".

Explanation:

In the given question there is a total of 192 switch ports, which are available for the 48-port switches. And for four access points, 8 trunk links that are 2 per access layer switch will be required. In every connexion of the trunk include two significantly modified-ports on the circuits throughout the access layer. With trunk connexions to both the communication network controller switches, a total of 17 switcher ports is required, allowing 176 access points for end system connectors.

1. entrepreneur.com

2. wikipedia