Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Reexamination Certificate
2006-07-07
2009-11-10
Ton, Dang T (Department: 2419)
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
C370S389000, C370S390000, C370S359000, C709S227000, C709S249000
Reexamination Certificate
active
07616645
ABSTRACT:
A frame forwarding apparatus is provided with a frame forwarding processing unit for converting a VLAN ID of a frame received from one subscriber terminal into a group VLAN ID and converting a group VLAN ID of a frame received from an ISP router into a subscriber VLAN ID, by referring to a VLAN bundling table. Each of the entries in the bundling table defines subscriber side line information including a line number of a physical line connected to one of the subscriber terminals and a subscriber VLAN ID, in association with a MAC address of the subscriber terminal and ISP router side line information including a line number of a physical line connected to the ISP router and a group VLAN ID.
REFERENCES:
patent: 5802047 (1998-09-01), Kinoshita
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patent: 6967949 (2005-11-01), Davis et al.
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McPherson, D., et al. “VLAN Aggregation for Efficient IP Address Allocation” RFC 3069, Feb. 2001, pp. 1-7.
Kimura Masahiro
Miyata Hiroaki
Nakajima Jun
Ota Migaku
Hitachi Communication Technologies Ltd.
Kamara Mohamed
McDermott Will & Emery LLP
Ton Dang T
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