Dynamically updating routing information while avoiding deadlocks and preserving packet order after a link error
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United States of America Patent
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Oct 7, 2014
Grant Date -
Nov 15, 2012
app pub date -
May 10, 2011
filing date -
May 10, 2011
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Abstract
A system for allowing dynamic changing of routing information of a network interconnect while avoiding deadlocks and preserving packet ordering. A network resiliency system detects when an error in the network interconnect occurs and dynamically generates new routing information for the routers that factors in the detected error. The network resiliency system then generates new routing information that factors in the failure. The network resiliency system then directs the network interconnect to enter a quiescent state in which no packets are transiting through the network interconnect. After the network interconnect enters the quiescent state, the network resiliency system directs the loading of the new routing information into the routing tables of the network interconnect and then directs the network interconnect to start injecting request packets into the network interconnect.
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