CS 1000 elements are Active‐Active GR-aware. The GR-aware CS 1000 elements are configured to interact with both primary and secondary System Manager servers. The element communicates with System Manager servers for Authentication and Authorization (A&A) related operations. Typically, the element leverages A&A services from the System Manager server that is closest to the element regardless of whether the server is in the primary or secondary mode. The secondary System Manager can serve A&A requests in both standby and active modes.

CS 1000 server deployments are of two types:

• VxWorks‐based servers

• Linux‐based servers