Patent EP0612170A2 successfully refreshed from Google Patents.
EP0612170A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Address tracking over repeater based networks
Assignee: Advanced Micro Devices Inc
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Filing: 1993-12-29
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Granted: —
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Expires: 2013-12-29
Abstract
Abstract A system is provided for use in a network to provide authentication of packets of data, provide security to ensure the prevention of unauthorized receipt of data, to provide improved monitoring of the packets of data transmitted and received over such a network, and to detect changes in the network topology. Repeaters utilized in the network are provided with the capability to detect and interpret packet data and the source address (SA) and destination address (DA) fields to provide the improved features.
Inventors
- 👤 Ian S. Crayford
- 👤 William Lo
- 👤 Nader Vijeh
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 21:25
CPC Classifications
H; H04; H04L; H04L63/00; H04L63/02; H04L63/0227; H04L63/0236; H04L12/00; H04L12/28; H04L12/46; H04L12/4604; H04L12/462; H04L12/4625; G; G06; G06F; G06F11/00; G06F11/30; G06F11/34; G06F11/3466; G06F11/348
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
81 words
In a repeater that transmits a plurality of packets of data, each of the packets including a source address (SA) field and a destination address (DA) field, a system comprising: means for storing a value representation of a SA field; means for receiving a SA field from the network; and means coupled to the storing means and receiving means for comparing the SA field to the value, wherein a signal is provided responsive to the comparison indicating a match or mismatch.
Claim 2
Dependent Claim
18 words
The system of claim 1 in which the storing means comprises a plurality of random access memories (RAMs).
Claim 3
Dependent Claim
15 words
The system of claim 2 in which each of the RAM are 32 bits wide.
Claim 4
Dependent Claim
18 words
The system of claim 1 in which the SA field is written into memory through an external interface.
Claim 5
Dependent Claim
19 words
The system of claim 1 in which the SA field is automatically updated when a valid frame is received.
Claim 6
Dependent Claim
75 words
In a repeater that transmits and receives a plurality of packets of information within a network, each of the packets including a source address (SA) field and a destination address (DA) field, a system comprising: means for receiving a DA field; means for storing a plurality of addresses representing ports coupled to the repeater; comparing the DA field to the plurality of addresses; and means for disrupting the packet if there is not a match.
Claim 7
Dependent Claim
29 words
The system of claim 6 which includes means coupled to the disrupting means for preventing the disrupting of a packet when the packet is a multicast or broadcast format.
Claim 8
Dependent Claim
80 words
In a repeater that transmits and receives a plurality of packets of data, each of the packets including a source address field and a destination address field, the system comprising: means for storing an address into the system; means for receiving an address representing an incoming packet from a port; means for providing an interrupt indicating a match between the stored address and the incoming address; and means for providing the identity of the port on which the match occurred.
References Cited (Backward Citations)
No citation records indexed.
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