Link load balancing on an AR

Load balancing means that concurrent access requests and data traffic are evenly distributed among multiple devices, greatly improving service processing capabilities.
Load balancing devices in the Cache system are classified into load balancing subsystems (LBSs) and global load balancers (GLBs) based on deployment scenarios.
-- An LBS is used in in-band policy-based routing (PBR) deployment scenarios. PBR on a router of the live network is added to direct upstream and downstream HTTP traffic to the F5. The traffic is then load balanced to the Cache system by the LBS.
-- A GLB is used in in-band DNS redirection deployment scenarios. DNS requests of intranet users are parsed into HTTP proxy IP addresses and are then redirected to the Cache system.

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