08-25-2003 07:19 AM - edited 03-02-2019 09:51 AM
I have a question concerning Frame-relay end-to-end keepalive.
Can this feature be used when one of the Cisco routers is terminated on an ATM PVC (Frame-relay ATM interworking)?
I searched the documentation but nothing relevant.
08-26-2003 07:53 AM
I think its your LMI which does keepalives on the FR interfaces end to end. LMI tells you the status of the PVC's terminated on the FR switch.
I dont think it is possible to configure LMI's on ATM interfaces !!!
Cheers
08-29-2003 12:51 PM
Yes, you will need to use the ATM OAM (Operation, Administration, and Maintenance) cell management feature on the atm side. This will allow for the F/R LMI to be translated to an ATM OAM cell and visa versa. ATM PVC's must be configured like this in order to support OAM cell management:
!
interface ATM2/0.101 point-to-point
description ** blah, blah, blah... **
mtu 1500
bandwidth 1536
ip address 1.1.1.1 255.255.255.252
pvc TESTPVC 1/101
vbr-nrt 44209 1720 32
oam-pvc manage
encapsulation aal5snap
!
!
This way, if the frame side is down, your ATM sub-interface will go down and visa versa.
Regards, Tom
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