# Cisco Technology Inc — Patents explained on PatentBrief

Cisco Technology Inc has 2 landmark patents explained in plain English on PatentBrief.

- [How Servers Share an IP Address for High Availability](https://patentbrief.org/patent/us/9571603/redundancy-network-protocol-system) — granted 2017
  Cisco's 2017 patent describes a system where multiple servers can share a single virtual IP address to ensure an application stays online even if one server fails.
- [How DNS Servers Route Web Traffic to the Least Busy Server](https://patentbrief.org/patent/us/6178160/load-balancing-of-client-connections-across-a-network-using-server-based-algorithms) — granted 2001
  A method for balancing web traffic by having servers report their current workload to a DNS server, which then directs new users to the fastest available machine.

**Full profile:** https://patentbrief.org/company/cisco-technology-inc

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_Source: PatentBrief — https://patentbrief.org. Plain-English explanations of US patents._