Invention Grant
- Patent Title: Lightweight host multihoming
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Application No.: US16888577Application Date: 2020-05-29
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Publication No.: US11641336B2Publication Date: 2023-05-02
- Inventor: Anoop Ghanwani , Anandaraj Maharajan , Phaniraj Vattem
- Applicant: DELL PRODUCTS L.P.
- Applicant Address: US TX Round Rock
- Assignee: DELL PRODUCTS L.P.
- Current Assignee: DELL PRODUCTS L.P.
- Current Assignee Address: US TX Round Rock
- Agency: North Weber & Baugh LLP
- Main IPC: H04L29/08
- IPC: H04L29/08 ; H04L12/46 ; H04L12/44 ; H04L12/715 ; H04L12/741 ; H04L12/721 ; H04L12/28 ; H04L61/10

Abstract:
Described herein are systems and methods for host multihoming with no state synchronization between top-of-rack (ToR) switches coupled to multiple hosts. ToR switches of a multi-homing system share a virtual MAC address and respond to Address Resolution Protocol (ARP) requests and/or Neighbor Discovery (ND) solicitations for a default gateway IP address from the host with the virtual MAC address. Ports on a ToR switch may be configured either with a static ARP and/or ND entry, or be configured to learn via a discovery protocol. The lightweight host multihoming system may have modified flooding behavior, ARP/ND handling, and data path forwarding. ARP/ND traffic from a host is processed by a ToR switch, while other multicast traffic may be discarded. Embodiments of the host multihoming system provide a lightweight solution for software implementation with minimal changes imposed on the host or network design.
Public/Granted literature
- US20210377207A1 LIGHTWEIGHT HOST MULTIHOMING Public/Granted day:2021-12-02
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