Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Patent
1995-10-12
1998-10-06
Olms, Douglas W.
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
370401, 370432, 370911, H04L 1246, H04L 1256
Patent
active
058188380
ABSTRACT:
A bridge (62) capable of reducing unwanted WAN multicast packet traffic in a LAN is disclosed. The bridge examines the contents of WAN multicast query and report packets and includes this information in its filtering database (88). The bridge designates ports on which query packets are received as query ports. When there is no WAN router generating multicast query packets into the LAN, the bridge simulates the behavior of a WAN router and generates WAN multicast query packets so as to cause report packet generation by end systems. A timeout interval for undesignating query ports and a method for determining an appropriate timeout for a port is disclosed.
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Backes Floyd
Jung Cyndi
3Com Corporation
Olms Douglas W.
Rao Seema S.
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