Network in budget lockdown? No problem for this prison system

By , Network World |  Networking, voip, WAN

State government IT budgets are as tight as ever, but the Nevada Department of Corrections is in a good position to hunker down and ride out the recession thanks to a recent network upgrade.

In May 2008, the NDOC purchased 12 network appliances from Infblox that cost around $70,000. The appliances – Infoblox 250s and 550s – handle the agency’s Domain Name System (DNS) and Dynamic Host Configuration Protocol (DHCP) queries as well as IP Address Management (IPAM).

By automating these core network services using the appliances, the NDOC has been able to improve network reliability without adding staff.

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"DNS and DHCP and IPAM have gone from being a regular headache to being a non-issue with Infoblox,’’ says Dan O’Barr, an IT manager at NDOC who is responsible for systems, desktops and communications. ``If I didn’t have the Infoblox appliances, I’d need a couple full-time staff members to get the same functionality.’’

The NDOC operates the largest government network in the state of Nevada. The agency’s IP network connects 24 sites, including state prisons in remote locations. The wide-area network is patched together using T-1 links from seven carriers.

"We run almost everything on this network: VOIP; radio over IP; temperature controls; door controls; fire alarm controls; plus any other application you’d find on a corporate network like file sharing, email and database,’’ O’Barr says. "It's a very complex environment that’s hard to put your arms around.’’

With 3,000 users and 5,000 devices endpoints, the NDOC network is growing rapidly and needs to be up and running around the clock. The network’s main application is an offender management system that stores information about inmates, calculates sentences and includes current inmate counts.

``What I need is the ability to get the network back up quickly. If the network is down more than four hours, we have to start doing procedures by hand,’’ O’Barr says.

Prior to buying Infoblox appliances, NDOC provided DNS and DHCP services using servers running Novell Open Enterprise Server 1 software. However, the agency was having trouble with outages that required human intervention to re-boot the servers.

``We needed something more reliable that was independent of the servers,’’ O’Barr says. ``We decided to go with appliances because they would separate these network services from the servers and make them more reliable. We looked at all the appliance vendors…and chose Infoblox.’’

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