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Pacific Island Prepares Communications to Withstand Nature's Wrath

November 2005
By Robert K. Ackerman
E-mail About the Author

 
A U.S. Navy petty officer 2nd class communicates on his radio during an exercise in Guam. The island’s Army National Guard has established a new communications network built on the back of a buried Navy fiber optic Sonet ring.
Typhoons must be no obstacle to connectivity in a territory that is increasing in importance.

In what has proved to be a timely and prescient move, the Guam Army National Guard recently upgraded its communication system both to handle expanded mission demands and to be resistant to constant battering by typhoons. The Guard now has an Internet protocol (IP)-based system built around commercial technology and designed to survive storm elements that used to crash the Guard’s old system regularly.

The island of Guam is susceptible to typhoons throughout the year, and destructive tsunamis cannot be ruled out. Historically, these natural disasters crippled the island Guard’s communications when they were needed most. So, the Guard needed an upgrade that both provided new technologies and introduced survivability into the communications mix.

The need for better networking on Guam was not driven wholly by nature’s wrath and technology’s march. The joint forces being established in Guam needed better communications. And, any new network almost certainly would need room to grow as new missions would be added to the forces’ menu.

Capt. Kingbernam L. Bansil, GUARNG, Joint Force Headquarters J-6/ director of information management for the Guam National Guard, explains that the first step toward building a new system was an assessment of the Guam National Guard’s networked installation communications. This assessment revealed a network that comprised a compilation of shortcuts and piecemeal equipment largely serving only to support daily operations. It was a web of bad links and problems that needed fixing, the captain relates. The Guard’s outdated equipment was a result of the different architecture introduced through some reliance on the local telephone system.

Above all, the island faced one requirement little known among other U.S. Army National Guard units. Sitting in the middle of the Pacific Ocean, Guam always has been—and continues to be—a prime target for typhoons. In any given year, four or five typhoons strike or sideswipe Guam. These storms almost always render the Guard’s communications inoperative. The island’s power authority and telephone company inevitably would crash during one of these storms.

Overcoming this problem is more difficult on the Pacific island than it is on the mainland, even in a hurricane-plagued coastal area. Cement on Guam is made using coral, and burying fiber is very expensive. For example, burying optical fiber on a 30-acre property would cost between $500,000 and $1 million in labor alone. So, the first deployment of the Reserve Component Automation System, or RCAS, involved aerial lines. While deploying fiber above ground is less expensive and allows for faster network construction, this construct virtually ensures that the fiber will be blown away with each typhoon.

When this happens, the network is completely severed, Capt. Bansil relates. The command cannot send out data, it cannot communicate with the National Guard Bureau, and mission-essential communications links cannot be assembled. “We are at a complete standstill,” the captain declares.

Repeated catastrophic failures were not the only drawback offered by the old system. The local telephone company also dealt with antiquated equipment. The captain relates that the island’s T1 lines constantly dropped because of exposed pedestals and long response times. And, the Guard’s main circuits had to process through the commercial carrier to reach its long-distance provider.

This effort was complicated by the fact that outside-world missions for the Guam Guard are increasing with the war on terrorism. More military and government civilian organizations are interoperating with the Guard and sharing space and telecommunications needs on Guam.

With the help of Capt. Bansil’s counterpart at the National Guard Bureau and engineers sent to Guam, the island Guard began looking for a redesign last year. Not only would the Guam Guard need a network that would resist typhoons, it also would need one that could function in a 21st century digital communications environment and could accommodate upgrades as future technologies and capabilities came online.

With its broadened mission, the Guard was designated to get new buildings on new land, including a new Guam National Guard Joint Force Headquarters. This provided both opportunities and challenges for building an entirely new communications infrastructure.

As the Guard looked at communications options, it determined that the heart of the new system would be the network providers. The Guard turned to a Cisco engineer who offered an architecture featuring new commercial technology. With this plan in hand, the Guard received approval for a $1.5 million upgrade from the National Guard Bureau’s chief joint information officer.

Bruce Klein, vice president of Cisco’s federal sales organization, explains that his company was an existing installed base vendor for the Guam Guard. With a fiscal infrastructure already in place, the local company team was able to step up and join the upgrade effort.

The new network was designed to provide telecommunications services over IP, including data and voice (VoIP). Video was added when Guam Guard officials saw the advantages of giving their troops the capability of communicating visually with their families over vast distances. Another important use for video over IP is that Guam officials could view commanders’ briefings from Washington that could be stored as content and then sent over the network at a time when the Guam officials are awake to see them.

The upgrade was split into two phases over a 90-day period. The first phase involved modernizing the existing local area and wide area networks around a collapsed core as well as implementing a pilot for VoIP. With the success of that pilot, the second phase began. It involved rolling out more of the infrastructure to establish full VoIP over the entire system. Video followed, and the entire upgrade was up and running after just 90 days.

Klein relates that the company’s rich media product known as MeetingPlace enables capabilities such as Web conferencing, voice and videoconferencing. The installation of a double-mesh star topology allowed the Guard to baseline its entire network throughout the organization. The Guard created redundant systems and upgraded its main network capabilities.

The network features a self-healing system that shunts activities from a failed mechanism to a working one. Capt. Bansil notes that the Guard saw an increase in network usage with the network’s telephone systems having better performance and being less expensive than the local telephone system.

 
U.S. Air Force airmen wade through the jungles of southern Guam during a joint exercise held in June. Guam is assuming a larger role in joint efforts in the war on terrorism.
Ultimately, the key to establishing a new survivable communications network for the Guam Army National Guard lay with the U.S. Navy. The Navy already had an underground OC-192 Sonet fiber double ring, which features wave division multiplexing, in place on the island. So, the Guard signed memoranda of agreements with the service to use one of the light wavelengths on that Sonet ring as a protected backbone system. The Guard was able to abandon the pole-mounted fiber lines for this embedded ring. The captain describes the Guard’s working relationship with the Navy as unheard of but supportive of the joint effort. “The U.S. Navy helped us in ways the local telephone authority could not help us,” he emphasizes.

The result has been tremendous increases in efficiency and productivity, Klein maintains. With this infrastructure in place, the Guard can layer new applications atop it. “They are changing the way they communicate with each other, with their own headquarters organizations, with the families of the people serving in Guam and with partners that they have to communicate with,” he says. “It’s like the Jetsons,” he continues, referring to the futuristic cartoon family. “They [the Guam Guard] are getting capabilities that they never thought they were going to get.”

Capt. Bansil declares that the single greatest advantage brought by the new network is its reliability. It has accommodated an expansion from 300 users to more than 1,000, and it has been able to absorb new equipment cost-effectively. Planners can build on a network that already is an open system without needing to upgrade its core.

The network building features double encased walls and a dual power system, including a secondary power generator, inside the building for enhanced survival. When a typhoon hit Guam shortly after its completion, the network building helped ensure that the network did not crash during the storm. Capt. Bansil relates that the entire command never realized that the network was under stress during that typhoon.

“When the National Guard was recalled to assist the island during the recovery period,” he says, “we had a network that we could depend on to send data, voice traffic and video. That enhanced our conferencing needs with the National Guard Bureau, with the police department, with the Department of Homeland Security, with FEMA [the Federal Emergency Management Agency]—these [network] mechanisms helped increase [the network’s] popularity and the demand for a more robust network,” he attests.

Implementing the new system did not entail completely discarding the existing infrastructure. Bob Andersen, Cisco account manager for the Guam Army National Guard, explains that new cable was run where necessary, but the company employed a classic network design complemented by state-of-the-art technologies. The philosophy was to introduce some new technologies into Guam and have the user community there test-drive them and report back on their usefulness. “They [the Guam National Guard] have the luxury of being a testbed without having disruption,” Andersen points out.

The network features Cisco 4507 and 3725 routers that have a data traffic throughput of 2 gigabits per second, compared to the original 10 megabits per second in the old system. Its Cisco Catalyst 4500 and 3560 core switches, which are power over Ethernet types, have voice capability. With the collapsed core architecture, the distribution and core modules are one and the same.

The network’s VoIP call manager server includes leading-edge software that Andersen characterizes as the equivalent of an IP PBX. A myriad of telephones, including VoIP handsets, comprise the voice system. A new voice-mail system is tied into the VoIP system so that users can know immediately when they receive a message.

A Cisco ATA-188 allows users to plug a traditional analog telephone into an Ethernet link to the local area network. Other technologies include video cameras, security products and network management software.

With the new network’s enhanced capabilities, Guam Guard members already are reaping unexpected benefits. Capt. Bansil notes that many soldiers had trouble achieving qualifications. So, with the new network, they could have high-speed access to distance learning resources. The Guam Guard now has a 12-seat classroom, which was fielded by the National Guard Bureau, that takes full advantage of the new network.

According to Capt. Bansil, the biggest challenge to building this network was funding. Without an existing facility to host the network, the Guard had to wait a full year for the Joint Force Headquarters building to be designed and built. During that time, the Guard had to reach out for assistance to higher command levels in Washington, D.C.

Another challenge was that the Guard did not have enough people to stand up the network. When the installation was complete, only five people were available to run the network. The captain adds that the network remains understaffed.

And, the local Guam telephone authority still has systemic problems from its limited topographic and financial resources. Exposed pedestal conduits stick out of the ground, the captain relates, and these represent a potential single-point failure for the main circuit. Capt. Bansil notes that the Guard had to move away from the local telephone authority because of its unwillingness to upgrade its system.

Capt. Bansil explains that this new network is designed to last from five to 10 years. The next upgrade for the network is to reduce cellular telephone usage by implementing a secure wireless network. Preliminary plans call for deploying a wireless solution within the headquarters building to fit an LMR radio system that would connect nearby buildings with IP technology. When VoIP capabilities can be extended to individuals walking outside among the buildings in the area of the network facility, that will save money in cellular telephony costs. Once individuals move more than one mile away from the network center, their telephone connectivity would be switched to local cell phone carriers.

A wireless solution already has been adopted for one of the Guard’s sites. Burying optical fiber for each building would have been too expensive, so the Guard engineered wireless solutions for each building. The repeaters on each building can be utilized without wires. The captain explains that the antennas on these buildings are taken down with the approach of a typhoon, and they are reinstalled as soon as the typhoon has passed.

Andersen believes the Guard network is well-positioned for growth. “We have laid such a solid foundation that the Guam Guard is in an excellent position to expand on what we are doing with a converged network,” he posits. He defines converged network as one that offers the ability to take traditional voice and merge it into video and also to run data applications on the same wire. With a little effort, the Guard can integrate IP- and non-IP-video sys tems into the network. An H.320 integrated services digital network (ISDN)-based network can be combined with an H.323-based IP network to provide the most advanced capabilities available right on users’ desktops.

In the event of a tsunami or typhoon, this advanced network would allow users to unplug their telephones from their desks and move into a common area where they could plug their telephones into a local area network that would give them an instant emergency operations center. There would be no need to reprogram telephones or to change circuits.

The Guam National Guard is working to run a joint network with the U.S. Department of Homeland Security, and the Drug Enforcement Agency and the Federal Bureau of Investigation also are interested in using the network. The network’s capabilities may be extended to the Air National Guard and Anderson Air Force Base. This would enable the Army National Guard to share resources and technologies at those other locations.

The Guard is engaging in partnership programs with other states such as Alaska and Hawaii, and it also is working with the Philippines. A challenge is to diversify the network so that it can be extended in those directions. Future additions may include satellite and very high frequency capabilities. These technologies would enable Guam National Guard personnel to train from wherever they are deployed.

 

Web Resource
Cisco MeetingPlace: www.cisco.com/en/US/products/sw/ps5664/ps5669