US 11,695,592 B2
Segmentation within a broadcast domain in ethernet VPN
Patrice Brissette, Gatineau (CA); Samir Thoria, Saratoga, CA (US); and Ali Sajassi, San Ramon, CA (US)
Assigned to CISCO TECHNOLOGY, INC., San Jose, CA (US)
Filed by Cisco Technology, Inc., San Jose, CA (US)
Filed on Nov. 24, 2020, as Appl. No. 17/103,588.
Application 17/103,588 is a continuation of application No. 16/438,844, filed on Jun. 12, 2019, granted, now 10,880,123.
Prior Publication US 2021/0083903 A1, Mar. 18, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. H04L 12/28 (2006.01); H04L 12/54 (2022.01); H04L 12/66 (2006.01); H04L 12/46 (2006.01); H04L 12/70 (2013.01)
CPC H04L 12/56 (2013.01) [H04L 12/4641 (2013.01); H04L 12/66 (2013.01); H04L 2012/5641 (2013.01); H04L 2012/5642 (2013.01); H04L 2012/5648 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A network apparatus, comprising:
one or more processors; and
one or more computer-readable non-transitory storage media coupled to the one or more processors and comprising instructions operable when executed by the one or more processors to cause the network apparatus to:
receive a first control plane information indicating a first device is associated with a first segment within a broadcast domain, wherein the first control plane information is received through a network associated with a broadcast domain;
store a record of an association between the first device and the first segment within the broadcast domain;
receive, from a second device connected to the network apparatus, a unicast frame destined to the first device, wherein the unicast frame is determined to be associated with a second segment within the broadcast domain based on a port through which the second device connects to the network apparatus;
determine that the second segment is identical to the first segment by looking up the stored record; and
cause, in response to the determination, the unicast frame to be delivered to the first device through the network associated with the broadcast domain.