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frame-relay infra security

how secure is frame-relay infrastructure from attacks. Cant find any such documentations.

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Re: frame-relay infra security

Mostly attacks happen at Layer 3 the network layer. Frame Relay and ATM Layer 2 services are perceived as providing secure foundations for enterprise WAN connectivity. The virtual circuit (VC) nature of these services keeps each customer's virtual private network (VPN) private and resistant to outside attacks.

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