[nsp] persistent dialing

[Eric Osborne]

On Thu, Jan 09, 2003 at 02:59:29PM +1100, Marcus Keane wrote:
> I assume this is a BRI? If you are worried about the routing protocol
> using lots of bandwidth with flooding, adjacency forming etc., you can
> configure the routing protocol to never bring up an adjacency. Then all
> you have are hellos every 10 or 30 seconds(or whatever you choose).
> 
> Or the newer versions of code have GRE keepalive support, so you could
> use that to trigger the idle timer by building a bogus tunnel across the
> link. 
> 
> If you don't want to be reliant on user traffic triggering the idle
> timer, I'm not sure how many options you have that are operationally
> supportable.

Agreed.  Not like I'm anything close to a dial expert, but isn't
bandwidth precious only if you have contention for it, and if you have
contention, doesn't that mean you have traffic?  Turn on RIP, send a
single route every 30s; that isn't going to be much more than a byte
or two per second, on average.  



eric

> Marcus.
>  
> -----Original Message-----
> From: Victor Sudakov [mailto:sudakov at sibptus.tomsk.ru] 
> Sent: 09 January 2003 14:35
> To: Marcus Keane
> Cc: cisco-nsp at puck.nether.net
> 
> Marcus Keane wrote:
> > Victor,
> > If you have a dialer-list that permits everything and you are running 
> > an active routing protocol on the link, the hellos will reset the idle
> 
> > timer so that the link will never go down.
> 
> In fact I need not run a routing protocol on that interface.
> Running it for the sole purpose of bringing up the interface seems to be
> an overkill and waste of precious bandwidth.
> 
> > HTH,
> > Marcus. 
> >  
> > -----Original Message-----
> > From: Victor Sudakov [mailto:sudakov at sibptus.tomsk.ru]
> > Sent: 09 January 2003 13:59
> > To: cisco-nsp at puck.nether.net
> > 
> > 
> > Colleagues,
> > 
> > I need to make a router dialout to a remote NAS no matter if there is 
> > interesting traffic to match a dialer list. I basically want it to 
> > start dialling out on powerup, always stay connected and redial until 
> > success every time it detects that PPP has failed.
> > 
> > How do I achieve this? Thanks a lot in advance.
> > DDR all seems to be about bringing the link up when interesting 
> > traffic is detected or when another interface is down. I seem to be 
> > overlooking something obvious.
> > 
> > --
> > Victor Sudakov,  VAS4-RIPE, VAS47-RIPN 
> > _______________________________________________
> > cisco-nsp mailing list  cisco-nsp at puck.nether.net 
> > http://puck.nether.net/mailman/listinfo/cisco-nsp
> > archive at http://puck.nether.net/pipermail/cisco-nsp/
> 
> --
> Victor Sudakov,  VAS4-RIPE, VAS47-RIPN
> 
> _______________________________________________
> cisco-nsp mailing list  cisco-nsp at puck.nether.net
> http://puck.nether.net/mailman/listinfo/cisco-nsp
> archive at http://puck.nether.net/pipermail/cisco-nsp/