Invention Grant
- Patent Title: Support for flooding in encapsulation and inter-VLAN communication via proxy-ARP
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Application No.: US16040291Application Date: 2018-07-19
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Publication No.: US11025536B1Publication Date: 2021-06-01
- Inventor: Gautam Venkataramanan , Umamaheswararao Karyampudi , Eddie Tan , Ajay Modi
- Applicant: Cisco Technology, Inc.
- Applicant Address: US CA San Jose
- Assignee: Cisco Technology, Inc.
- Current Assignee: Cisco Technology, Inc.
- Current Assignee Address: US CA San Jose
- Agency: Merchant & Gould P.C.
- Main IPC: H04L12/721
- IPC: H04L12/721 ; H04L12/46 ; H04L12/741 ; H04L12/24 ; H04L29/12

Abstract:
A first leaf switch may receive from a first host, a request for a second host that is not known at the first leaf switch. The first host may be within a first End Point Group (EPG) and the second host being within a second EPG. The first EPG and the second EPG may be in a Bridge Domain (BD). Flood in encapsulation may be enabled for the first EPG and for the second EPG. Next, the first leaf switch may flood the request locally in the first EPG and to a spine switch with a VNID of the first EPG. The spine switch may then flood the request to a second leaf switch where the BD is present. The second leaf switch may send a glean request for the second host, receive, in response to sending the glean request, a reply, and learn the second host locally in response to receiving the reply.
Information query