Link validation system
A link validation system includes a first device and a second device. The first device identifies that a first link to the second device has become available via a first port on the first device, and determines that the first link to the second device is not a valid link. In response to determining that the first link to the second device is not a valid link, the first device configures the first port in an auto-negotiation error state. Subsequent to configuring the first port in the auto-negotiation error state, the first device detects a port connection cycling operation associated with the first port and, in response, clears the auto-negotiation error state for the first port.
1. A link validation system, comprising:
a second device; and
a first device that is configured to:
identify that a first link to the second device has become available via a first port on the first device;
determine that the first link to the second device is not a valid link;
configure, in response to determining that the first link to the second device is not a valid link, the first port in an auto-negotiation error state;
detect, subsequent to configuring the first port in the auto-negotiation error state, a port connection cycling operation associated with the first port; and
clear, in response to detecting the port connection cycling operation associated with the first port, the auto-negotiation error state for the first port.
2. The system of claim 1 , wherein the determining that the first link to the second device is not a valid link includes determining that the first link to the second device does not conform to a link topology.
3. The system of claim 1 , wherein the first link to the second device is identified as having become available via the first port in response to the first port entering an operationally up state, and wherein the auto-negotiation error state provides the first port in an operationally down state that allows the port connection cycling operation to be detected via the first port.
4. The system of claim 1 , wherein the port connection cycling operation associated with the first port includes the disconnection of a cable from the first port followed by a connection of a cable to the first port.
5. The system of claim 1 , wherein the port connection cycling operation associated with the first port includes the disconnection of a cable from a second port that is coupled to the first port by the cable, and the connection of the cable to a third port.
6. The system of claim 1 , wherein the first device is configured to:
identify, subsequent to clearing the auto-negotiation state for the first port, that a second link to the second device has become available via the first port on the first device;
determine that the second link to the second device is a valid link; and
transmit data via the second link.
7. The system of claim 1 , wherein the first device is configured to:
complete auto-negotiation operations prior to identifying that the first link to the second device has become available via the first port on the first device.
8. An Information Handling System (IHS), comprising:
a processing system; and
a memory system that is coupled to the processing system and that includes instructions that, when executed by the processing system, cause the processing system to provide a link validation engine that is configured to:
identify that a first link to a device has become available via a first port coupled to the processing system;
determine that the first link to the device is not a valid link;
configure, in response to determining that the first link to the device is not a valid link, the first port in an auto-negotiation error state;
detect, subsequent to configuring the first port in the auto-negotiation error state, a port connection cycling operation associated with the first port; and
clear, in response to detecting the port connection cycling operation associated with the first port, the auto-negotiation error state for the first port.
9. The IHS of claim 8 , wherein the determining that the first link to the device is not a valid link includes determining that the first link to the device does not conform to a link topology.
10. The IHS of claim 8 , wherein the first link to the device is identified as having become available via the first port in response to the first port entering an operationally up state, and wherein the auto-negotiation error state provides the first port in an operationally down state that allows the port connection cycling operation to be detected via the first port.
11. The IHS of claim 8 , wherein the port connection cycling operation associated with the first port includes the disconnection of a cable from the first port followed by a connection of a cable to the first port.
12. The IHS of claim 8 , wherein the port connection cycling operation associated with the first port includes the disconnection of a cable from a second port that is coupled to the first port by the cable, and the connection of the cable to a third port.
13. The IHS of claim 8 , wherein the link validation engine is configured to:
identify, subsequent to clearing the auto-negotiation state for the first port, that a second link to the second device has become available via the first port on the first device;
determine that the second link to the second device is a valid link; and
transmit data via the second link.
14. A method for validating a link, comprising:
identifying, by a first device, that a first link to a second device has become available via a first port on the first device;
determining that the first link to the second device is not a valid link;
configure, in response to determining that the first link to the second device is not a valid link, the first port in an auto-negotiation error state;
detecting, subsequent to configuring the first port in the auto-negotiation error state, a port connection cycling operation associated with the first port; and
clearing, in response to detecting the port connection cycling operation associated with the first port, the auto-negotiation error state for the first port.
15. The method of claim 14 , wherein the determining that the first link to the second device is not a valid link includes determining that the first link to the second device does not conform to a link topology.
16. The method of claim 14 , wherein the first link to the second device is identified as having become available via the first port in response to the first port entering an operationally up state, and wherein the auto-negotiation error state provides the first port in an operationally down state that allows the port connection cycling operation to be detected via the first port.
17. The method of claim 14 , wherein the port connection cycling operation associated with the first port includes the disconnection of a cable from the first port followed by a connection of a cable to the first port.
18. The method of claim 14 , wherein the port connection cycling operation associated with the first port includes the disconnection of a cable from a second port that is coupled to the first port by the cable, and the connection of the cable to a third port.
19. The method of claim 14 , further comprising:
identifying, by the first device subsequent to clearing the auto-negotiation state for the first port, that a second link to the second device has become available via the first port on the first device;
determining, by the first device, that the second link to the second device is a valid link; and
transmitting, by the first device, data via the second link.
20. The method of claim 14 , further comprising:
completing, by the first device, auto-negotiation operations prior to identifying that the first link to the second device has become available via the first port on the first device.