Constraining flooding of multicast traffic in Layer2 networks

Details Constraining flooding of multicast traffic in Layer2 networks Constraining flooding of multicast traffic in Layer2 networks

2005-10-25

2009-10-06

Shah, Chirag G (Department: 2419)

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

C370S395310, C370S432000

Reexamination Certificate

active

07599367

ABSTRACT:
A mechanism for a network device to constrain multicast flooding of out-of-profile multicast frames is provided by defining a multicast flood domain that includes a subset of ports that are members of the broadcast domain. Such a multicast flood domain can be user configured or dynamically configured to include device ports that are coupled to network elements that should receive such out-of-profile multicast transmissions and exclude network elements that should not receive such multicast transmissions. In one embodiment of the present invention, such capability is provided by incorporating into a network device a mechanism for performing a multicast flood domain lookup of an address table in the event that an out-of-profile multicast frame is received.

REFERENCES:
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patent: 6701361 (2004-03-01), Meier
patent: 2002/0093973 (2002-07-01), Tzeng
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“Media Access Control (MAC) Bridges;” IEEE Std. 802.1D™-2004 (Revision of IEEE Std 802.1D-1998); IEEE Standard for Local and Metropolitan Area Networks; Jun. 9, 2004, pp. 64-73.
“Catalyst 4500 Series Switch Cisco IOS Software Configuration Guide,” Cisco Systems, Inc., pp. 28-1 through 28-4.

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