Patent ID: 9686316
Date: 2017-06-20
CPC Classifications: H04L

Claim:
1. A method, comprising: listening, by a switch in a computer network, to a device naming exchange on one or more trusted interfaces of the switch to learn device names of devices reachable on interfaces of the switch; listening, by the switch, to the device naming exchange to learn a corresponding interface of the switch on which each particular device, with a learned device name, is reachable; associating each learned device name to the learned corresponding interface for that particular device; allowing, by the switch, identity responses from only learned device names on their corresponding interface; protecting against disallowed responses by disabling interfaces of the switch on which a disallowed response is received; and disabling interfaces of the switch on which the disallowed response is received until one of either expiration of a period of time or administrator intervention.