Attribute Continuation Line
When an attribute value uses more than one line, the extra lines are continuation lines.
 Autonomous System (AS)
A group of IP networks that have a single and clearly defined external routing policy, operated by one or more network operators.
 Autonomous System (AS) Number
A unique, numeric value given to an AS. The range of numbers starts at 0 and extends up to a maximum value held by a 32-bit unsigned number 4,294,967,295.