PPP GATEWAY APPARATUS FOR CONNECTING PPP CLIENTS TO L2SW
First Claim
1. A PPP gateway apparatus for connecting a plurality of PPP (Point to Point Protocol) client terminals to one of layer 2 frame forwarding apparatuses, comprising:
- a plurality of line interfaces each accommodating one of access lines for connecting to the client terminals and core lines for connecting to the layer 2 frame forwarding apparatuses;
a frame forwarding control table comprising a plurality of table entries each indicating the correspondence of a PPP session number to a client MAC address and frame definition information for one of said core lines;
a frame processor for controlling communication frame forwarding between each of said client terminals and said layer 2 frame forwarding apparatuses,wherein said frame processor operates, based on said frame forwarding control table, to forward a PPP frame received from each of said access lines to one of said core lines after converting it into a layer 2 Ethernet frame and to forward a frame received from one of said core lines and destined for a particular client MAC address to one of said access lines after converting it into a PPP frame.
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Accused Products
Abstract
In a PPP gateway apparatus comprising a plurality of line interfaces each accommodating one of access lines for connecting to client terminals and core lines for connecting to layer 2 frame forwarding apparatuses, a frame forwarding control table, and a frame processor for controlling frame forwarding, the frame forwarding control table includes table entries each indicating the correspondence of a PPP session number to a client MAC address and frame definition information for the core line, and the frame processor operates, based on the frame forwarding control table, to forward a PPP frame received from one of access lines to one of core lines after converting it into a layer 2 Ethernet frame and to forward a frame received from one of the core lines and destined for a particular client MAC address to one of access lines after converting it into a PPP frame.
19 Citations
8 Claims
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1. A PPP gateway apparatus for connecting a plurality of PPP (Point to Point Protocol) client terminals to one of layer 2 frame forwarding apparatuses, comprising:
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a plurality of line interfaces each accommodating one of access lines for connecting to the client terminals and core lines for connecting to the layer 2 frame forwarding apparatuses; a frame forwarding control table comprising a plurality of table entries each indicating the correspondence of a PPP session number to a client MAC address and frame definition information for one of said core lines; a frame processor for controlling communication frame forwarding between each of said client terminals and said layer 2 frame forwarding apparatuses, wherein said frame processor operates, based on said frame forwarding control table, to forward a PPP frame received from each of said access lines to one of said core lines after converting it into a layer 2 Ethernet frame and to forward a frame received from one of said core lines and destined for a particular client MAC address to one of said access lines after converting it into a PPP frame. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification