Method and system for subnetting in a switched IP network

Details Method and system for subnetting in a switched IP network Method and system for subnetting in a switched IP network

1998-03-11

2000-09-05

Olms, Douglas W.

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

370469, H04L 1246

Patent

active

061153850

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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