First strain on Olympic networks seen

First strain on Olympic networks seen

It didn't take long to see the first signs of strain on communication networks at the Olympics when overloaded infrastructure on the first day of competition caused organizers to request that spectators scale back their use of Twitter for "non-urgent" messages, according to Reuters.

On Saturday during a women's bicycling race, broadcasters from BBC had trouble receiving GPS tracking signals from the race course because of an overloaded communications network. Reports then emerged that the number of fans along the race course using Twitter may have contributed to the network strain.

Olympics officials were quoted asking fans to scale back their use of Twitter. "Of course, if you want to send something, we are not going to say 'Don't, you can't do it,' and we would certainly never prevent people," an International Olympic Committee spokesperson was quoted as saying in Reuters. "It's just -- if it's not an urgent, urgent one, please kind of take it easy." Reuters reported that during the situation on Saturday, "many inadvertently made matters worse by venting their anger on Twitter at the lack of information."

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How could this happen? Brian M. Jacobs, senior product manager for the network management division of Ipswitch, says the situation highlights the need for organizers of large events to have networking monitoring and controlling tools in place. "Whoever set up this network obviously didn't fully think through the impact of the fans and their ability to consume a massive amount of bandwidth," Jacobs says. Given all of the preparation Olympic organizations have done to set up the networks to carry the games, he says there are lessons enterprise network managers can glean from the situation.

First, he says, it is key to have network monitoring tools in place to gain insight into the capacity of the network and the traffic on it. It's one thing to know that the network is becoming overloaded, but it's another to know what sort of traffic is causing the issue. "Gross-level" monitoring will track the overall capacity of the network being used while fine-level monitoring will show exactly which traffic is causing the stress.

The next step is having tools in place to manage that network load. Protocols can be put in place to prioritize network traffic and limit some sources that are requesting bandwidth. A variety of players, including Blue Coat Systems, do that sort of work, Jacobs notes. "You can't treat all the traffic the same," he says. "Business critical apps need to take priority over nominal communications and there are ways to configure the network to do that."

And finally, he says, a lesson from the Olympics issue is that you can't blindly rely on your partners. The issue over the weekend, he notes, was likely caused not only by the Olympics network infrastructure having issues, but also from third-party telecommunications systems that may have been overloaded. If an enterprise is relying on a partner or vendor to supply a networking service, make sure the provider is putting controls into place to handle unexpected issues that may arise as well.

Network World staff writer Brandon Butler covers cloud computing and social collaboration. He can be reached at and found on Twitter at @BButlerNWW.

Read more about lan and wan in Network World's LAN & WAN section.

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