18499121. CONFIGURING APPLICATION AVAILABILITY USING ANYCAST ADDRESSING (Palo Alto Networks, Inc.)
CONFIGURING APPLICATION AVAILABILITY USING ANYCAST ADDRESSING
Organization Name
Inventor(s)
Jacob Rameen Chitsaz of Raleigh NC US
Jayant Jain of Cupertino CA US
Brian Russell Kean of Cincinnati OH US
Uttam Ramesh of Sunnyvale CA US
Mingfei Peng of Pleasanton CA US
CONFIGURING APPLICATION AVAILABILITY USING ANYCAST ADDRESSING
This abstract first appeared for US patent application 18499121 titled 'CONFIGURING APPLICATION AVAILABILITY USING ANYCAST ADDRESSING
Original Abstract Submitted
Anycast addressing is utilized to support the connection of multiple application connectors fronting an application(s) to a network element and anycast routing of network traffic destined for the application(s). When an application is indicated for onboarding in a network fabric of a tenant, a network controller allocates virtual and anycast addresses to the application. Allocation of anycast addresses is per domain name and port/protocol combination. Upon determining that the application is available, the application connector(s) advertises reachability of the application via the anycast address. The network controller orchestrates configuration of a DNS entry that resolves the application name to its virtual IP address and destination NAT rules that translate the virtual IP address to the anycast address and the anycast address to the application's private IP address. Application network traffic can thus be forwarded to the application via any application connector that advertised the anycast address.