Cisco PNR R10 DNS Upgrades 3 Yr 4 Million RRs | DNS Licensing — PNRS-10-DNS-1M

Keep DNS services aligned with growth instead of forcing a platform change. Cisco PNR R10 DNS Upgrades 3 Yr - 4 Million RRs provides a 3-year licensing path for environments that need support for 4 million resource records, making it a practical fit for large, distributed, or rapidly changing address and service maps. This license is built for organizations that value capacity planning over reactive expansion. It helps preserve DNS continuity while extending the usable life of the deployed platform, reducing the need to re-architect around a lower-capacity tier. For infrastructure teams, that means fewer surprises during growth cycles, cleaner budgeting across a multi-year term, and a more controlled path for maintaining resolution services at scale. Because DNS sits at the center of application reachability, identity, and internal service discovery, the right licensing tier matters. This option is suited to teams that need a defined record ceiling and a longer planning horizon without overcommitting to a broader platform change. It is a focused purchase for enterprises that want to protect uptime, keep operations stable, and match license spend to actual DNS demand. Ideal For Scaling enterprise DNS for large internal and external record sets Extending an existing Cisco PNR deployment without changing platforms Supporting multi-year infrastructure planning for DNS services Managing high-volume DNS environments with a fixed record ceiling Why This Product 1 3-year term versus annual renewal cycles 2 4 million RR capacity versus lower-tier DNS licenses 3 Upgrade licensing versus full platform replacement 4 Cisco PNR alignment versus generic DNS subscriptions