Multiport data network switch having direct media access control link to external management
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United States of America Patent
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-
Jan 2, 2001
Grant Date -
N/A
app pub date -
Dec 18, 1997
filing date -
Feb 14, 1997
priority date (Note) -
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Abstract
An integrated multiport switch (IMS) for a data network has a management port for direct communication with an external management agent. The switch, which is integrated into a single chip, includes a management interface that comprises logic circuit elements. This interface acts as a virtual physical layer for both the media access controller (MAC) at the management port and the MAC at the external management agent. The latter may be located on the same circuit board as the IMS chip. PHY devices for these MACs are eliminated while the collision signal and carrier sense signal generation functions are maintained. The PHY devices are replaced by a logic interface while permitting use of the standard Simplified Network Management Protocol (SNMP) software for the interfacing operations. No modification of MAC software is required.
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