Agilent N2X

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Bidirectional Forwarding Detection (BFD) Protocol Emulation Software

The N5583A N2X Bidirectional Forwarding Detection (BFD) Protocol Emulation Software offers the most comprehensive and scalable solution available for testing Bidirectional Forwarding Detection, which is a protocol used to rapidly detect faults between two forwarding engines, enabling faster recovery from faults and increased network availability. N2X accurately emulates BFD including the three-way handshake, Poll sequence, and multihop paths over all interface types – enabling users to comprehensively verify BFD implementations.

In a carrier network, one BFD instance typically exists for each OSPF and IS-IS adjacency and BGP-4 routing peer. In MPLS networks, LSR neighbors may establish a separate BFD session for each of multiple established LSP tunnels. It is not practical to test BFD scalability using real network equipment. N2X allows users to configure thousands of BFD emulations quickly and cost-effectively, with multiple sessions per adjacency, to verify ultimate capacity and stability of a device under real network conditions.

Key Features

• Emulate thousands of BFD sessions to characterize scalability
• Up to 20ms detect times and 10ms transmit intervals on XS-2 cards
• Fully integrated – works with Graceful Restart and MPLS Fast Reroute
• Quantify recovery time from BFD session-down
• Test interoperability using non-standard BFD control packets
• Supports all test interfaces – Ethernet, POS, ATM, FR
• Verify three-way handshake, Poll sequence, and multihop paths

Related Links

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• Journal of Test Methodologies
• N2X Breaking Technology