Chris Robb, an engineer at Indiana University's Global Network Operations Center who works on Internet2, says Level 3 Communications cables used by the network went up in flames. The cables were on the Longfellow Bridge, which connects Boston and Cambridge across the Charles River.
Robb, who co-authors the Internet2 Network Upgrade blog, writes that Level 3 engineers estimate it could take one to two days to restore the circuit. Engineers are looking at rerouting a Chicago-to-New York OC-192 circuit that normally goes through Boston to Washington until service is restored.
Robb writes: "Question: When can a cigarette take down your network? Answer: When you throw it at a bridge and light it on fire."
Authorities say the fire, which also disrupted service on the Red Line subway, started around 8:20 p.m. when a homeless man tossed a lit cigarette. The cigarette landed on a mattress, which ignited and led to a two-alarm fire.
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