Hardware resource allocation for equal-cost multi-path groups

摘要

Techniques are provided for allocating hardware resources for an equal-cost multi-path (ECMP) group based on information about the network architecture. A table in memory may include a plurality of entries. Each entry may include interface set and a number of interfaces. Each interface set may represent a list of interfaces for the network device for a given network connection. The network device may receive a list of interfaces for allocating resource for an EMCP group. The network device may select an entry from the table by identifying an interface set that includes all of the interfaces for the ECMP group. The network device may determine a size of the ECMP group using a number of interfaces for the identified interface set from the entry from the table and allocate hardware resources (e.g., memory) for the ECMP group based on the determined size of the ECMP group.