"John G. Scudder" <jgs@ieng.com> writes:

Whether 9999 chooses to do this or not is, as the saying goes, "purely a local matter."

Figures. As with essentially everything in BGP.

Some BGP implementations, gated for one, may be configured to accept routes with the router's own AS number in the path. Loop suppression is still provided by limiting the number of times it may appear. (Hi, Dennis.)

Oh yeah, the AS healing wars. I didn't realize gated ever implemented this; I do remember the first time AS path prepending met gated, though, and a certain Russian and a certain Swede plotting to build Sprintlink's backbone on top of ANS's using AS healing. --:)

This is actually useful in some circumstances.

Oh certainly. I can think of three applications right now, actually, where that would be the easiest (but probably also the most dangerous) approach to solving routing awkwardnesses. I take it this feature is documented in the usual place? Sean.