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Can I backup a frame relay NNI trunk with ISDN?

admin_2
Level 3
Level 3

I have four Cisco routers interlinked as frame relay switches. I would like to backup my NNI trunks with ISDN, is it possible? If so, how do I configure my frame-relay route statements to point to the ISDN if the same statements also point to the serial NNI trunk?

1 Reply 1

Not applicable

No, you cannot backup with ISDN a Frame relay NNI trunk.

ISDN can backup frame relay interfaces DTE-DCE.

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