Time Protocol Latency Correction Based On Forward Error Correction Status

A method for time protocol latency correction based on forward error correction (FEC) status, comprising:

• determining, by a network node element, if a forward error correction (FEC) decoding mode is enabled or disabled for a packet received from a link partner in communication with the network node element;
• determining, by the network node element, a first time correction factor if an FEC decoding mode is enabled, the first time correction factor includes a time delay associated with the enabled FEC decoding mode and the first time correction factor is applied to a time stamp associated with the packet;
• and
• determining, by the network node element, a second time correction factor if an FEC decoding mode is disabled, the second time correction factor is applied to the time stamp associated with the packet.

A system comprising, one or more tangible, non-transitory storage mediums having stored thereon, individually or in combination, instructions that when executed by one or more processors result in the following operations comprising:

• determine if a forward error correction (FEC) decoding mode is enabled or disabled for a packet received from a link partner in communication with a network node element;
• determine a first time correction factor if an FEC decoding mode is enabled, the first time correction factor includes a time delay associated with the enabled FEC decoding mode and the first time correction factor is applied to a time stamp associated with the packet;
• and
• determine a second time correction factor if an FEC decoding mode is disabled, the second time correction factor is applied to the time stamp associated with the packet.

A network node element, comprising:

• a network interface card configured to be coupled to a bus, the network interface card is configured to communicate with a link partner using an Ethernet communications protocol;
• the network interface card is further configured to:
• determine if a forward error correction (FEC) decoding mode is enabled or disabled for a packet received from the link partner;
• determine a first time correction factor if an FEC decoding mode is enabled, the first time correction factor includes a time delay associated with the enabled FEC decoding mode and the first time correction factor is applied to a time stamp associated with the packet;
• and
• determine a second time correction factor if an FEC decoding mode is disabled, the second time correction factor is applied to the time stamp associated with the packet.

A computer-readable program product comprising, one or more tangible, non-transitory storage mediums having stored thereon, individually or in combination, hardware descriptive language instructions that, when executed by one or more processors, specifies circuitry that is configured to perform the following operations comprising:

• determine if a forward error correction (FEC) decoding mode is enabled or disabled for a packet received from a link partner in communication with a network node element;
• determine a first time correction factor if an FEC decoding mode is enabled, the first time correction factor includes a time delay associated with the enabled FEC decoding mode and the first time correction factor is applied to a time stamp associated with the packet;
• and
• determine a second time correction factor if an FEC decoding mode is disabled, the second time correction factor is applied to the time stamp associated with the packet.