Ciena Corporation
Hierarchical encapsulation acceleration

Abstract:

A method for a network device. The method includes receiving, by an encapsulation engine from a data path processor, a channel identifier in connection with a data frame, where the channel identifier identifies a channel of the network, traversing, by the encapsulation engine based on the channel identifier in connection with the data frame, a hierarchical data structure, where the hierarchical data structure includes a number of hierarchical encapsulation data items corresponding to a number of channels, selecting, from the number of hierarchical encapsulation data items by the encapsulation engine based on the traversing the hierarchical data structure, a number of linked encapsulation data items that are linked to the channel identifier, generating, by the encapsulation engine based on the number of linked encapsulation data items, an encapsulation result, and sending, to the data path processor, the encapsulation result for transmitting the data frame via at least the channel.