Associated tunnels terminating on different packet switches and relaying packets via different tunnel combinations
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United States of America Patent
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Mar 19, 2013
Grant Date -
N/A
app pub date -
Jun 27, 2007
filing date -
Apr 13, 2007
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Packet switch operating methods and packet switches forward a first packet to a first packet switch via an active primary tunnel terminating on the first packet switch. The primary tunnel is associated with an inactive backup tunnel terminating on a different second packet switch. The methods and packet switches also deactivate the primary tunnel, activate the backup tunnel, and forward a second packet to the second packet switch via the activated backup tunnel. Network operating methods relay a first packet to a first one of a plurality of destination packet switches via two or more different tunnels in a first combination. The methods and packets switches also deactivate one of the tunnels of the first combination without deactivating any other tunnel of the first combination and relay a second packet to a second one of the packet switches via two or more different tunnels in a second combination.
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