more specific routes in today reality

On Tue, 9 Oct 2001 16:38:36 -0400 
"Lu, Ping" <PLu at cw.net> wrote:

[..snip..]

> Great! Now we have to collect routing policies from thousands of small LIRs
> while still
> have to deal with thousands of small prefixes.

This is what i meant: if we "renumber" the old swamp space not only in RIPE
Region, we have a cleaner routing table. many of the old swamp space
"owners" are single homed, which would clean up a lot in the routing table
if they are forced to use PA space from the respective provider.


> And if the major ISPs stop listening to the more specfic routes then even
> using the address from PI space won't work (unless you are big enough).

Right, see my above comment.

> All these solutions kind of imply that if you can't have /20 prefix then you
> can't be multi-homed. What happen if a customer want to have an OC-48
> multi-homed link but only use prefix < /20 (that happens to the Internet
> Exchange people a lot ) ? 

There should be also made some "golden networks" for the exchanges and "important"
services, like DNS. This, correctly implemented together with the vendors, 
could make live easier:

	- route flap dampening works together seamless with the correct
	  networks in "default" configurations.
	- more stability
	- less routes in routing table
	- clear "border" of address space together with registry borders.

But again, these are only ideas from network operators. 

--jan


-- 
 Jan-Ahrent Czmok        		http://www.lambda-solutions.de
 Technical Advisor ISP	    	        Hofdcker Str. 14, 65207 Wiesbaden
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