Method and system for subnetting in a switched IP network
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United States of America Patent
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-
Jul 17, 2001
Grant Date -
N/A
app pub date -
May 12, 2000
filing date -
Mar 11, 1998
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A large flat IP network is created in a switched layer-2 network by adjusting the subnet masks of hosts such that these hosts can communicate directly with other hosts without the use of an intermediate router. The layer-2 switches are configured with user-selected IP subnets and monitor and analyze multicast packets to learn the mapping between IP subnets and switch ports. The layer-2 switches selectively forward the mulitcast packets based on the learned mappings between IP subnets and ports. After the destination host responds to the forwarded multicast, a direct connection is established between the source and destination hosts using the media access control addresses of both hosts.
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