PNNI


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PNNI

(Private Network-to-Network Interface) A routing protocol used between ATM switches in an ATM network. It lets the switches inform each other about network topology so they can make appropriate forwarding decisions. PNNI is based on the OSPF protocol, but also measures line capacities and delays rather than just simple cost metrics. Thus, ATM switches can dynamically reroute packets based on current line conditions. See I-PNNI.
References in periodicals archive ?
PNNI Phase 1 is the specification that is intended to enable dynamic hierarchical routing, switched virtual circuits, and guaranteed quality of service across an ATM backbone network.
I-PNNI extends PNNI to include internetwork routing, enabling routers, R/S edge devices and ATM switches to share information and calculate a single, optimal path end-to-end.
NEC's ATM switches incorporate PNNI software as a standard feature.
the leading provider of predictive network management software, announced plans to deliver integrated PNNI and MPLS software solutions for planning and testing advanced networking technologies.
ATM Forum PNNI (private network to network interface) greatly simplifies the interconnection of switches in a multivendor environment.
We're confident that the addition of RADCOM to the Broadband Year conference program will offer attendees a unique perspective in their education on PNNI hierarchy and SLAs.
0, production-class Virtual LANs, robust network management capabilities, and a hierarchical PNNI implementation.
GN Nettest has already begun development for the bridge between OPNET's recently announced PNNI and MPLS software, and GN Nettest's interEMULATOR products.
PNNISim--Platinum also features an easy to use scripting tool to automate various and rigorous PNNI testing processes.
The ATM test suites consist of an SSCOP test, ATM layer tests, UNI signalling tests, and PNNI signalling and routing tests.
It has several unique features for end-to-end call tracing, fault injection and extensive analysis, as well as full support for multi-heirarchy PNNI as per ATM forum standards.
PNNIsim tests the behavior of PNNI equipment by connecting an emulated PNNI network (with multiple nodes, links and ATM end stations) to actual network switches and hosts.