Patent ID: 9143444
Filing Date: 2015-09-22
Classification: H04L,Y02D

Abstract:
1. A system, comprising: a transparent interconnection of lots of links (TRILL)-enabled network comprising: logic configured to create a virtual routing bridge logically connected to the first physical routing bridge and the second physical routing bridge to form a virtual link aggregation (vLAG) group at an edge of the TRILL-enabled network; logic configured to determine a first distribution tree linking the first physical routing bridge to every other routing bridge in the TRILL-enabled network in a non-repeating fashion, ending with the second physical routing bridge; logic configured to determine a second distribution tree linking the second physical routing bridge to every other routing bridge in the TRILL-enabled network in a non-repeating fashion, ending with the first physical routing bridge; and logic configured to publish a virtual routing bridge link state connectivity to the TRILL-enabled network in response to detection of a last physical port in the vLAG group failing, wherein when a multicast packet is received by the virtual routing bridge from one of the physical routing bridges, the multicast packet is distributed according to either the first or the second distribution tree thereby preventing looping.