Distributed connectivity verification protocol redundancy

A system, comprising:

• a processor;
• and
• a computer-readable storage medium having stored therein instructions which, when executed by the processor, perform operations comprising:
• maintaining state for a connectivity verification protocol session corresponding to a virtual interface via a group of line cards comprising a primary line card and a backup line card;
• transmitting, from the primary line card and the backup line card, connectivity verification protocol session packets to the virtual interface, wherein the primary line card actively transmits verification protocol packets at a first reduced rate that is less than a negotiated full rate and the backup line card actively transmits verification protocol packets at a second reduced rate that is less than the negotiated full rate, and wherein a combination of the first rate and the second rate is sufficient to maintain the connectivity verification protocol session at the negotiated full rate;
• receiving, by the primary line card and the backup line card, a connectivity verification protocol session packet associated with the connectivity verification protocol session corresponding to the virtual interface;
• and
• processing, via at least one of the primary line card and the backup line card, the connectivity verification protocol session packet received by the primary line card and the backup line card.

A non-transitory computer-readable storage medium having stored therein instructions which, when executed by a processor, perform operations comprising:

• maintaining state for a connectivity verification protocol session corresponding to a virtual interface via a group of line cards comprising a primary line card and a backup line card;
• transmitting, from the primary line card and the backup line card, connectivity verification protocol session packets to the virtual interface, wherein the primary line card actively transmits verification protocol packets at a first reduced rate that is less than a negotiated full rate and the backup line card actively transmits verification protocol packets at a second reduced rate that is less than the negotiated full rate, and wherein a combination of the first rate and the second rate is sufficient to maintain the connectivity verification protocol session at the negotiated full rate;
• receiving, by the primary line card and the backup line card, a connectivity verification protocol session packet associated with the connectivity verification protocol session corresponding to the virtual interface;
• and
• processing, via at least one of the primary line card and the backup line card, the connectivity verification protocol session packet received by the primary line card and the backup line card.