Ciena Corporation

Vijay Mohan Chandra Mohan

Hossein Baheri

Wei-Chiuan Chen

Ankit Sood

Prasanth Gajarampalli

Leela Sankar Gudimetla

Systems and methods include, responsive to routing a packet to a destination via an external interface of a plurality of external interfaces, receiving the packet; checking if the packet belongs to an existing session for network address and port translation based on a session key; if the packet does not belong to the existing session, assigning the packet an Internet Protocol (IP) address and port based on the routing; if the packet belongs to the existing session, checking if an active path has changed, and, if not, performing the network address and port translation based on the session; and, if the active path has changed, assigning the packet an Internet Protocol (IP) address and port based on another external interface associated with the changed active path.

Path-aware NAPT session management scheme with multiple paths and priorities in SD-WAN

Systems and methods utilize an all-or-none switchover to prevent split-brain problems in a Multi-Chassis Link Aggregation Group (MC-LAG) network. A standby node in the MC-LAG network can perform the steps of remaining in a standby state responsive to a loss of adjacency with an active node, wherein, in the standby state, all standby links between the standby node and a common endpoint are non-distributing; monitoring frames transmitted by the common endpoint to the standby node over the standby links; and determining based on the monitoring frames whether all active links between the active node and the common endpoint have failed and entering an active state with all the standby links distributing based thereon.

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San Jose, CA, United States of America

Vijay Mohan Chandra Mohan