AS path regular expressions extension to ripe 181

 * The following three <extended routing policy expression> represent the same
 * set of routes, however the last one can be translated into a finte state
 * 
 *                                      4
 * 
 * automota much more efficiently than the second one, and the second one can
 * be translated much more efficiently than the first one:
 * 
 *   o <^AS1> OR < ^AS2> OR < ^AS3>
 * 
 *   o <^(AS1 | AS2 | AS3)>
 * 
 *   o <^[AS1 AS2 AS3]>
 * 
 * We recommend the use of the last form whenever possible.

Hmm, I would have picked another example here. On a specific peer, I
cannot see how accepting routes with a path that starts with 3
different ASes can be useful. The path will always start with the
neighbor AS (unless you fiddle with the path of course). The example
would have made more sense (to me at least) if you would have used

<AS1$> OR <AS2$> OR <AS3$> -> <(AS1 | AS2 | AS3)$> -> <[AS1 AS2 AS3]$>

-Marten



-------- Logged at  Tue Jun 13 23:27:02 MET DST 1995  ---------