Hi Gert, Thanks for your input, I'll throw this back at you now for some
more thoughts.
I want to run a pair of BGP sessions to a Private AS via two ATM links.
I'm holding back prefixes and the CPE is using default routes to send
traffic back. The LAN
interfaces on the CPE's run HSRP to give the customer a single gateway, but
HSRP can only
track Interface states. I cannot put a link between the CPE's as they are
sometimes on
different sites miles apart. The link state change is imperitave for any
type of failure to ensure
the HSRP session fails over. Any thoughts?
Jon..
-----Original Message-----
From: Gert Doering [mailto:gert@greenie.muc.de]
Sent: 27 April 2001 13:20
To: Desmarais, Jonathan; 'cisco-nsp@puck.nether.net'
Subject: Re: [nsp] Config Options.
hi,
On Fri, Apr 27, 2001 at 11:38:41AM +0100, Desmarais, Jonathan wrote:
> There are two ways to configure a PVC on an ATM interface.
>
> "atm pvc" or just "pvc". WHat is the diffence.
> I have found that using just "pvc" to define the circuit and then
> configuring oam etc, the interface link state changes correctly.
> When I use the atm pvc command and add oam to the end the
link state does
> not change. Do I need to configure oam on the physical interface too.
> Or is this just the way it is?
This seems to be the way it is.
But while we're on it: I use ATM subinterfaces, with "pvc" style syntax:
interface ATM2/0.32 point-to-point
bandwidth 2000000
ip unnumbered Loopback0
pvc sp1 15/32
ubr 2000
oam-pvc manage
encapsulation aal5mux ip
and nearly everything works nicely, that is:
- everything in order -> line is "up/up".
- line is broken, remote end disconnected -> OAM fails -> line
is "down/down"
what I would like to see is:
- line is looped back -> OAM detects loop -> line is "up/up (looped)"
but that doesn't happen right now, the loopback condition is not
recognized and the Interface just stays "up/up", which is bad for
dial-backup etc.
Does this ring a bell for anyone? Is there a workaround, or is it
"bug your sales droid"...?
gert
--
USENET is *not* the non-clickable part of WWW!
//www.muc.de/~gert/
Gert Doering - Munich, Germany
gert@greenie.muc.de
fax: +49-89-35655025
gert.doering@physik.tu-muenchen.de
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