Utilizing Network Visualization to Shape Traffic on the Network
CUSTOMER NAME: Air Methods
INDUSTRY: Air Medical Transport
LOCATIONS: 300 bases over 48 U.S. states (HQ: Colorado, USA)
- Lacked Quality of Service (QoS) during their network expansion, which required more bandwidth than their current hardware could support
- Acquired minimal visibility into their network routes and flows; they could not see how QoS shaped traffic
- Deployed LiveAction’s solution, LiveNX*, to improve Quality of Service (QoS) capabilities and utilized its unique topology to gain full visibility into network routes and flows
- No longer needed to invest and overspend in larger, more costly network and QoS control appliances
- Optimized productivity and communications—now with the ability to support critical radio-over-IP used for live communications from aircraft to the remote bases
- Improved application performance—the network is able to accommodate new applications and changes in the traffic mix as the company grows
Each year Air Methods Corporation transports more than 98,000 patients who require intensive medical care either from accident scenes or from general care hospitals to highly skilled trauma centers or tertiary care centers. To handle the urgency and volume of these critical missions, the Englewood, Colorado-based company operates a ﬂeet of 300 helicopters and ﬁxed-wing aircraft at 300 bases in 48 states.
While Air Methods is dedicated exclusively to the ﬁeld of air medical transport, its product and service oﬀerings extend well beyond the actual airlifts. The company also designs and manufactures medical aircraft equipment and interiors, provides a complete medical air and ground transport billing solution for providers, and maintains a nationwide medical communications network.
The communications network supports key oﬃces in ﬁve diﬀerent locations plus 300 remote bases that access the network via VPN. Each of the ﬁve main oﬃces provides a specialized operational function:
- Colorado—corporate headquarters
- California—billing center
- St. Louis—dispatch
- Pennsylvania—helicopter maintenance
Supporting the network from Air Methods’ Colorado headquarters is senior network engineer, Xavier Chaparro—the sole networking engineer among a 20-person IT department. He provides support for all network applications and, along with a radio engineer, also provides support for critical radio-over-IP used for live communications from aircraft to the remote bases.
Challenges for Chaparro and the team began to occur during a network expansion. In the past, Chaparro used WAN optimization appliances to shape traﬃc across an MPLS network. However when a network expansion required considerably more bandwidth than the hardware could support, Chaparro opted to use the Quality of Service (QoS) functionality already included with his Cisco routers rather than reinvesting in larger, more costly appliances.
After downloading a free trial and attending a live demonstration presented by the LiveAction sales team, Chaparro decided to move ahead and purchase the LiveAction software solution (now known as LiveNX*), to help manage Cisco QoS on the Air Methods network.
Although he was comfortable with his own ability to manage Cisco routers using the traditional command-line interface (CLI), when Chaparro saw a demonstration of how LiveAction could be used to manage Cisco QoS, he immediately realized the power and convenience the product had to oﬀer.
UTILIZING VISUALIZATION TO SHAPE TRAFFIC ON THE NETWORK
“I primarily liked the way it provided visualization for QoS, so I could actually see how it shaped the traﬃc passing through each interface,” Chaparro said. “I also like being able to change my QoS policies on the ﬂy with LiveAction. It’s a lot better than using the CLI because I can actually see and verify the changes I’m implementing.”
He stated that while you still have to know and understand what you are doing, LiveAction makes the job of managing Cisco networks much easier. “Conﬁguring QoS with command-lines is very cumbersome and it’s easy to make a mistake and not realize it. LiveAction simpliﬁes the process for creating and implementing policies and it also prevents errors.”
When Chaparro started the project, he knew the network was already in good condition, so transitioning from the WAN optimizer hardware to LiveAction software went very smoothly. With the help of LiveAction he uses Cisco’s QoS function to classify his network traﬃc and applications. Previously he relied on the WAN appliances to ﬁlter individual applications.
Today as the company grows and evolves, the Air Methods network also adapts to these changes on a regular basis. Every few weeks, Chaparro uses LiveAction to adjust the networking environment to accommodate new applications and changes to the traﬃc mix.