Folks, Forget about my previous message. I did not intend to send all this stuff to the list, but just the last paragraph. Sorry again, -- Jean-Michel Another point: the previous drafts of BGP4 were introducing a "BGP path attribute" which was carried together with the route. In some recent extensions of Ripe-81, and after some discussions with Peter Lothberg and Tony Bates, it appeared to us that this could be used to "color" network advertisements and carry this information thru the Internet. Any reason why you've dropped the idea ? Yes, it tends to break aggregation. Since you can't aggregate colored routes together, it would cause people to not aggregate. This would increase the size of the routing tables. Tony -- Jean-Michel