[Xorp-hackers] New consolidated Xorp performance improvement patch uploaded.

[Kristian Larsson]

On Fri, May 09, 2008 at 04:50:42PM +0100, Bruce M Simpson wrote:
> Ben Greear wrote:
> >>
> >> The RTA_TABLE stuff looks interesting and useful, do you plan to 
> >> forward port this to the HEAD revision?
> > Yes, I plan to port everything to HEAD, and drop whatever is fixed by 
> > Pavlin's fixes.  When I get something
> > working again, I'll post it.
> 
> Excellent, look forward to it.
> 
> >> The RIB shouldn't really be setting the admin distance for 
> >> static_routes at all.
> > My hack works for me (and is small and easy to keep merged)..but I'll 
> > gladly drop it if someone adds the ability to do it right.
> 
> The infrastructure's all already there; the protocol(s) just need to be 
> taught to send a "set_protocol_admin_distance" XRL to the RIB before 
> they try to register their OriginTable(s). It should only be done once 
> and specify the RIBs which the process plans to add routes to.
> 
> OLSR only ever originates unicast IPv4 routes at the moment; see 
> XrlIO::register_rib(). I had some snafus during development because I'd 
> left in a call to register a multicast table, but didn't include it in 
> set_protocol_admin_distance, which used to cause an error in the RIB; 
> this has since been demoted to a warning.
> 
> It isn't possible to do this for *all* of the protocols, particularly 
> the "connected" table which has special meaning to the RIB.
> 
> Also, the RIB does not yet handle changing admin distance for a running 
> process, because this involves blowing away of a lot of RIB and FEA 
> state; the code path to do it hasn't been written yet. It has to be done 
> though as the admin distance gets embedded in every OriginTable which a 
> routing protocol instantiates.

Will it be possible to set administrative distance
per route? This is _very_ useful for having
floating static routes.

  -K

-- 
Kristian Larsson                                        KLL-RIPE
Network Engineer & Peering Coordinator      SpriteLink [AS39525]
+46 704 910401			              kll at spritelink.net