[c-nsp] Taking advantage of route-refresh

[Vinny Abello]

At 11:26 AM 5/9/2006, Brian Johnson wrote:
>
>
> > -----Original Message-----
> > From: cisco-nsp-bounces at puck.nether.net
> > [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Pete Templin
> > Sent: Tuesday, May 09, 2006 9:59 AM
> > To: Vincent De Keyzer; Cisco Nsp
> > Subject: Re: [c-nsp] Taking advantage of route-refresh
> >
> > Vincent De Keyzer wrote:
> >
> > > 1.  will I actually save memory? Or is the "soft-reconfiguration
> > > inbound" command ignored if the router supports route-refresh?
> >
> > Yes, you'll save memory.  No, the command is not ignored if route
> > refresh is supported.
> >
> > > 2.  how do I check that the peer supports route refresh?
> >
> > edge1-ifmt#sh ip b n | i refresh
> >      Route refresh: advertised and received(new)
> >      Route refresh: advertised and received(new)
> > edge1-ifmt#
> >
> > > 3.  how do I remove the "soft-reconfiguration
> > inbound"command without
> > > breaking anything?
> >
> > Just do it.  You may need to reload to actually save the
> > memory though -
> > YMMV, but I had to reload to claim it back.
>
>Mine indicate...
>
>     Route refresh: advertised and received(old & new)
>
>...for all of my neighbors, but I have the "soft-reconfiguration inbound"
>configured on all of these neighbors.
>
>If I remove that configuration, what configuration lines do I need to add to
>use the route refresh option? Is it automatic?

It's automatic. To use it:

clear ip bgp nei x.x.x.x in

or

clear ip bgp nei x.x.x.x out

Those commands will tear down the BGP session if route refresh is 
supported between the peers.


Vinny Abello
Network Engineer
Server Management
vinny at tellurian.com
(973)300-9211 x 125
(973)940-6125 (Direct)
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