Method and apparatus for integrating repeater management, media access control, and bridging functions

• US 5,742,603 A
• Filed: 09/14/1995
• Issued: 04/21/1998
• Est. Priority Date: 09/14/1995
• Status: Expired due to Term

• Current Assignee: Level One Communications, Inc. (Intel Corporation)
• Original Assignee: Level One Communications, Inc. (Intel Corporation)
• Inventors: Shafir, Haim, Feuerstraeter, Mark T.
• Primary Examiner(s): Kizou, Hassan
• Assistant Examiner(s): BNIMOUSSA, ABDELHAMID
• Application Number:
  US08/528,205
• Time in Patent Office: 950 Days
• Field of Search: 370/246, 370/401, 370/402, 370/400, 370/501, 340/825.06, 340/825.07, 340/825.05, 340/825.51, 340/825.52, 380/3, 380/4, 380/48, 380/49, 380/50
• US Class Current: 370/401
• CPC Class Codes: H04L 41/00 Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
• CPC Class Codes: H04L 49/201 Multicast operation; Broadcast operation
• CPC Class Codes: H04L 49/25 Routing or path finding in a switch fabric
• CPC Class Codes: H04L 49/351 for local area network [LAN], e.g. Ethernet switches

Abstract

A system consisting of a repeater management function and media access control into a single device. The repeater management functions and the media access control may also be combined with bridging support functions. The repeater management function uses a repeater management interface to control information transferred to an access port and to control repeater functions under direction of access port and monitor repeater function and provide status via access port and to control the bridge support function. The bridge function controls information transferred through a bridge port. The MAC function transfers information between the repeater data port and the MAC port (transmit/receive). The integration of the media access controller and repeater management into a single device is independent of the implementation of any of the ports.

Claims

1. A repeater management device for communication networks, the repeater management device controlling repeaters and routing data packets between a receiving port and a destination port, comprising:

repeater management means for controlling and monitoring repeater functions related to the retransmission of the data packets and for providing status of and control over repeater functions via an external repeater management interface;

bridging support means, coupled to the repeater management means, for receiving the data packets on the receiving port and for forwarding the received data packets to the destination port in accordance with a destination address; and

media access controller, coupled to the repeater management means, for providing signal framing of the data packets and for controlling access to a repeater data interface.

2. The repeater management device of claim 1 wherein the repeater management means further comprises an access port for providing access to attributes relating to repeater functions.

3. The repeater management device of claim 1 wherein the bridging support means are controlled by the repeater management means.

4. The repeater management device of claim 1 wherein the management means further comprises a plurality of counters for traffic control.

5. The repeater management device of claim 1 wherein the media access controller further comprises means for generating preambles and error correcting codes, means for detecting error correcting codes, means for handling deferrals and collisions, means for controlling and handling backoff conditions, and means for retrying data transmission.

6. The repeater management device of claim 1 wherein the repeater management means further comprises registers for storing the attributes relating to repeater functions.

7. The repeater management device of claim 1 further comprising a media access control port for providing data packets received by the media access controller via the repeater data interface to memory.

9. The repeater management device of claim 1 wherein the repeater data interface comprises an inter-repeater backplane.

10. The repeater management device of claim 1 wherein the repeater management means further comprises a processor interface for providing direct memory access and semaphoring functions to support bridging functions of the bridging support means and media access control functions of the media access controller.

8. The repeater management device of claim wherein the media access controller determines whether a data packet is to be sent to the bridge for forwarding to a destination address connected to the bridge port or whether a data packet is to be retransmitted via the repeater data interface.