Gateway having bypassing apparatus
First Claim
1. A gateway enabling mutual data communication between two or more networks by connecting the networks, comprising a bypass path between the networks to enable data communication therebetween when the gateway does not support a normal data communication mode.
1 Assignment
0 Petitions
Accused Products
Abstract
A gateway enables mutual data communication between two or more networks by connecting the networks and forming a bypass path between the two networks to enable data communication therebetween when the gateway does not support a normal data communication mode. The gateway can form at least one physical communication path between the networks through the gateway even if the gateway cannot support a normal communication mode and/or power is interrupted to the gateway. Further, in spite of abnormal conditions, such as abnormal power supply to the gateway, if the bypass path is not formed, a user can compulsorily form the bypass path, thus improving reliability of a network system.
-
Citations
18 Claims
- 1. A gateway enabling mutual data communication between two or more networks by connecting the networks, comprising a bypass path between the networks to enable data communication therebetween when the gateway does not support a normal data communication mode.
-
9. A gateway enabling mutual data communication between two or more networks by connecting the networks, comprising:
-
a central processing unit processing data signals received through communication lines;
a first port connector connected to a first local area network (LAN) and provided with transmission and reception lines;
a second port connector connected to a second LAN and provided with transmission and reception lines;
first and second transformers mutually converting voltage levels of a signal of the communication lines and a signal of the central processing unit by considering a difference between the two signal levels;
a first network control unit connected between the central processing unit and the first transformer controlling data communication;
a second network control unit connected between the central processing unit and the second transformer controlling data communication; and
a bypassing apparatus allowing a data communication path sequentially passing through the first port connector, the first network control unit, the central processing unit, the second network control unit and the second port connector to be formed in a normal data communication mode which supports multiple channel access between the first and second LANs, and allowing a bypass path directly connecting the first port connector with the second port connector to be formed when the normal data communication mode is not supported. - View Dependent Claims (10, 11, 12, 13, 14)
-
-
15. A bypasser to be provided in a network gateway, the bypasser comprising:
-
switches in communication with port connectors of the gateway and in communication with port transformers of the gateway, the switches allowing communication between the port connector via the port transformers during normal gateway processing conditions and allowing communication between the port connectors via a bypass communication path other than the port transformers during abnormal gateway processing conditions; and
a bypass controller controlling the switches responsive to the gateway communication conditions. - View Dependent Claims (16, 17)
-
-
18. A bypassing method in a network gateway, comprising:
-
allowing communication between port connectors of the gateway via port transformers during normal gateway processing conditions;
monitoring abnormal gateway processing conditions; and
forming a bypass communication path between the port connectors responsive to the abnormal gateway processing conditions.
-
Specification