[j-nsp] BGP extended community attribute

[jjsyed at aol.com]

Hi,
 
There are two format to define extended community value, AS:VAL and ip-address-VAL
 
Which one is better then other entirely depend upon the design and specific requirements. I am wondering if any of you have any thoughts which one is  widely used in the industry and also shed some lights on pros and cons for each other. 
 
thanks in advance 
 
JS