Diagnostic port for inter-switch link testing in electrical, optical and remote loopback modes

摘要

A diagnostic testing utility is used to perform single link diagnostics tests including an electrical loopback test, an optical loopback test, a link traffic test, and a link distance measurement test. To perform the diagnostic tests, two ports at each end of a link are identified and then statically configured by a user. The ports will be configured as D_Ports and as such will be isolated from the fabric with no data traffic flowing through them. The ports will then be used to send test frames to perform the diagnostic tests.

主权项

1. A device comprising:
a processor; and a network port coupled to the processor, the network port including a media interface module coupled to the processor; wherein the media interface module includes the capabilities to perform electrical loopback testing and optical loopback testing; wherein the processor is adapted to:
configure the media interface module to perform a loopback of electrical signals when operating in a diagnostic mode;provide incoming electrical signals to the media interface module to perform an electrical loopback test;configure, after performing the electrical loopback test, the media interface module to perform an optical loopback test with a second media interface module of a second device when operating in the diagnostic mode; andprovide test frames to the network port to initiate the optical loopback test with the second media interface module when the second media interface module is configured to perform the loopback of incoming optical signals and is operating in the diagnostic mode.