[c-nsp] Link Status Not Transmitted, Another way to drop the interface/ route?

[Marko Milivojevic]

Hm, I am not quite sure how ATM/FR interworking deals with this (a gap in my 
understanding of both ;-) ), but have you considered using ATM OAM on the 
ATM end?

Martin Robinson wrote:
> Hello Steve,
> 
> Looks like it could be a DLCI to VPI/VCI mapping problem. Firstly make
> sure your frame relay encapsulation is correct, most SP's do not support
> Cisco encapsulation (try IETF). Then you need to check that you have the
> correct LMI type (ansi, cisco, or q933a).
> 
> If these are correct then the command "atm ilmi-keepalive <<time>>"
> configured on the ATM interface should give you status of the remote
> frame interface.
> 
> Regards Martin.
> 
> 
> Martin Robinson
> Product Manager
> Hardware.com
> +44 (0)1285 771 621
> +44 (0)1285 771 601
> 
> martin.robinson at hardware.com
> 
> -----Original Message-----
> From: cisco-nsp-bounces at puck.nether.net
> [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Steve Wright
> Sent: 24 April 2006 13:39
> To: Cisco-Nsp
> Subject: [c-nsp] Link Status Not Transmitted,Another way to drop the
> interface/ route?
> 
> Hi all,
> 
> I have a situation where we are provided with a Frame Relay service one
> end
> of a circuit, and ATM the other.
> 
> The problem I have is that no matter what, the ATM PVC always stays
> up,up,
> and therefore when the Frame Relay end of the circuit goes down, we do
> not
> see this and still try to route packets to them via this interface.
> 
> Unfortunately, we do not control the middle pathway between the two so
> can't
> correct the link status not being transmitted  :(
> 
> Other than running something like BGP, or possibly even doing
> reachability
> via SAA, is their a simpler way to achieve end to end status and drop a
> route/ the interface if the criteria is not matched?
> 
> Thanks for any help,
> 
> Steve
> 
> 
> 
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