Invention Grant
- Patent Title: Refresh of the binding tables between data-link-layer and network-layer addresses on mobility in a data center environment
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Application No.: US15990340Application Date: 2018-05-25
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Publication No.: US10742511B2Publication Date: 2020-08-11
- Inventor: Girija Raghavendra Rao , Victor Manuel Moreno , Marc Binderberger , Lev Shvarts , Vrushali Ashtaputre
- 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: Polsinelli PC
- Main IPC: H04L12/24
- IPC: H04L12/24 ; H04L12/751

Abstract:
A method for assisting communication of a source host upon movement from a first Data center (DC) to a second DC is disclosed. The method includes identifying that the source host has moved from the first DC to the second DC, ensuring that packets identifying a source as the source host in the second DC are copied to a control plane network element, and, for a first destination host identified in a first packet copied to the control plane network element and identified as a host that is not in the second DC, updating an Address Resolution Protocol (ARP)/Neighbor Discovery Protocol (NDP) cache of the source host by sending, to the source host, a first ARP message/unsolicited neighbor advertisement specifying a Media Access Control (MAC) address of an edge router associated with the source host in the second DC as a destination MAC address for the first destination host.
Public/Granted literature
Information query