Cross-connections are hardware (fibre, switches, routers) that connect separate units of the facilities within a data center. They are usually maintained by a single data center or across multiple data centers, and can be used for many purposes:
Trading companies may use hundreds of cross-connections between servers to ensure trades are done as quickly as possible.
Cloud providers use cross-connects to connect networks and Internet services providers (ISPs) within the same building â often for a single company.
Some companies use cross-connects to make sure their business is connected to global networks so they can take advantage of redundancy and pricing.