I-PNNI

Also found in: Acronyms.

I-PNNI

(Integrated-Private Network-to-Network Interface) An extension to the PNNI routing protocol used in ATM networks that enables IP routers to select paths through the network based on quality of service (QoS). I-PNNI was never completed by the ATM Forum and was superseded by MPLS. See PNNI, MPLS and QoS.

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I-PNNI routing envisions a mix of technologies in the same network: R/S edge devices near power workgroups, traditional routers in low traffic areas and ATM switches in the backbone.

I-PNNI routing is based on proven technology, and has its roots in standard, open routing protocols that have been in use for years.

Network architectures and configuration choices

We're pleased that the industry will be focusing on I-PNNI to provide the solution to that challenge.

I-PNNI integrates the two worlds of IP and ATM into one, helping to protect customers' investments in existing networks as they begin integrating additional technologies," said Rob Newman, Vice President of Product Management.

I-PNNI accepted as work effort by the ATM Forum; Bay Networks leads successful multivendor initiative

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