Enabling ATM OAM (Operations and Maintenance?) cells on the 
hub-site router lets you see when the remote Frame Relay 
PVC/DLCI goes down.  Here's a sample:

interface ATM1/0.105 point-to-point
 description ATM PVC to FrameRelaySite
 mtu 1500
 bandwidth 256
 ip address 10.1.121.89 255.255.255.252
 pvc r-framesitec261 1/105 
  vbr-nrt 512 512 100
  no ilmi manage
  oam-pvc manage 3         
> It is pretty much that simple. I have @ 130 frame circuits internetworked
to
> an ATM DS3. The only "problem" is that it seems to make troubleshooting a
> little harder. There isn't much you can do to look at the other side
> (without a modem attached to the remote router). For instance, when a
remote
> frame site goes down, there is no notification to the hub ATM site because
> nothing changes on it's end. Everything always shows up/up. At least with
> frame/frame you can do a show frame pvc and look at the DLCI status, etc.,
> 
> Martin Reilly wrote:
> >
> > I have a question I'd appreciate some advice with regarding ATM
> > and
> > Frame Relay interworking.
> >
> > I'm deploying a WAN using a telco that is providing "typical"
> > frame
> > relay ports over E1 links at ten remote offices. At the central
> > site,
> > where PVCs from the remote offices all come in, the telco is
> > providing a
> > 34Mb circuit, using ATM, to support the aggregated bandwidth
> > that may be
> > required.
> >
> > Now, I'm pretty familiar with frame relay (most of this setup is
> > actually just migrating from one telco's frame service to
> > another) and
> > that part I have no problem with. But I'm a newbie to ATM
> > (reading up on
> > it at the moment). Looks like ATM to ATM isn't too dissimilar
> > to frame.
> >
> > The telco says that the interworking should be "seamless", but
> > are not
> > terribly specific on details. Could it be as simple as pointing
> > an ATM
> > VC to a Frame PVC and letting the telco deal with the
> > differences in the
> > middle somewhere? I've never heard of this before, which
> > worries me a
> > bit!




Message Posted at:
http://www.groupstudy.com/form/read.php?f=7&i=54311&t=53414
--------------------------------------------------
FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]

Reply via email to