Automatic fabric multicast group selection in a dynamic fabric automation network architecture

摘要

A method is provided in one example embodiment and includes establishing a pool of multicast group addresses reserved for assignment to Layer 2 (“L2”) and Layer 3 (“L3”) segment IDs of a network comprising an Internet protocol (“IP”) fabric, and assigning a first multicast group address from the pool to an L3 segment ID of a Virtual Routing and Forwarding element (“VRF”) associated with a new partition established in the network. The method further includes pushing the first multicast group address assignment to a database to provide arguments for configuration profiles, and configuring a new tenant detected on a leaf node of the network using the configuration profiles, in which the configuring comprises specifying multicast group to segment ID assignments for the tenant as specified in the configuration profiles.

主权项

1. A method comprising:
establishing a pool of multicast group addresses reserved for assignment to Layer 2 (“L2”) and Layer 3 (“L3”) segment IDs of a network comprising an Internet protocol (“IP”) fabric; assigning a first multicast group address from the pool to an L3 segment ID of a Virtual Routing and Forwarding element (“VRF”) associated with a new partition established in the network; pushing the first multicast group address assignment to a database to provide arguments for configuration profiles; configuring a new tenant detected on a leaf node of the network using the configuration profiles, wherein the configuring comprises specifying multicast group to segment ID assignments for the tenant as specified in the configuration profiles; dividing the pool into a common pool and a mobility domain pool; for each multicast group address in the mobility domain pool, assigning one of the mobility domain multicast group addresses to at least one non-overlapping mobility domain of a group of mobility domains comprising the network if there are fewer mobility domain multicast group addresses than mobility domains; otherwise, assigning to each of the mobility domains at least one non-overlapping multicast group address from the mobility domain pool; and for each new partition, if the partition contains networks of the same mobility domain, assigning one of the multicast group addresses from the mobility domain pool assigned to the mobility domain to an L3 segment ID configured to the partition; otherwise, selecting a multicast group address from the common pool to be assigned to the L3 segment ID configured to the partition.