Communication interface and method for seamless data communication over multilane communication link

A method (500) of communication over a communication link (106) comprising a number of communication lanes (108) greater or equal to two and having a first end (202) and a second end (204), the method (500) comprising sending a data frame (208) from the first end (202) to the second end (204) over the communication lanes (108), wherein sending a data frame (208) includes splitting the data frame (208) into a number of subframes (218) corresponding to the number of communication lanes (108) and sending each of the subframes over one distinct communication lane amongst said communication lanes (108), the method (500) further comprising:

• storing, at the first end (202), a communication lane status for each of the communication lanes (108);
• and
• detecting, at the first end (202), that the communication lane status for a specific communication lane has changed to a determined status, and when detecting, at the first end (202), that the communication lane status for the specific communication lane has changed to the determined status:
• stopping sending subframes from the first end (202) to the second end (204) over the specific communication lane;
• sending the changed communication lane status for the specific communication lane, from the first end (202) to the second end (204),
• at the first end (202), splitting any data frame into a number of subframes corresponding to the number of communication lanes with a communication status which is not the determined status, and sending to the second end (204) each of the subframes over one distinct communication lane amongst the communication lanes with a communication status which is not the determined status.