Hewlett-packard Company

Synapsense Corporation

Lisa S Brown

Alan R Albrecht

Mark Savoldi

Various embodiments are disclosed for a plug retention apparatus, which includes: a male retention portion including a first flexible clasp for applying a retaining force to a plug assembly inserted therein, the male retention portion further including a ratchet member configured with a toothed bar: and a female retention portion including a second flexible clasp for applying a retaining force to the plug assembly inserted therein, the female retention portion further including an opening to receive the ratchet member of the male retention portion, the female retention portion further including a pawl configured to engage the toothed bar of the ratchet member.

Plug retention apparatus

Network access to a port is secured by monitoring the source address of packets that are sent as a device tries to train to the port over the network. If the source address matches an authorized source address assigned to the port to which the device is attached, then the device is allowed access to the system. If the device tries to train with a source address different from the authorized address, then the device is not allowed to train into the network, and all packets sent by the device are denoted as errored packets to prevent them from being accepted by any other device in the network. The system also detects when a device tries to disguise itself by first training with an authorized source address and then sends a packet with an unauthorized source address. If a packet is received which contains a source address other than the one that the device is authorized to use, the packet is marked as invalid so that it is not accepted by any other device in the network. The unauthorized device is then required to re-establish its connection to the network by retraining to guarantee that it is the authorized device.

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Granite Bay, CA, United States of America

Lisa S Brown