US 6,189,041 B1 · Next hop resolution protocol cut-through to LANs

Abstract

A method is implemented by which a Logical IP subnetwork attached (LIS) Next Hop Resolution Protocol (NHRP) client or an Emulated LAN (ELAN) subnetwork attached NHRP client in an Asynchronous Transfer Mode (ATM) network can send data to a destination LAN Emulation Client (LEC) on a different ISO layer-3 subnetwork via a data-direct Virtual Channel Connection. The method enables such a IP subnetwork attached NHRP clients to obtain the ATM address corresponding to the destination station by using the vendor-private extension within an NHRP packet. The NHRP client uses the ATM address to build a data-direct VCC over which it unicasts data bound for the destination station. The NHRP client appears to the destination LEC as any other LEC on its ELAN would appear.

Claims30

Dependent claims

A data processing system comprising:

a first data processing device operable for attaching to a layer-3 subnetwork, said first data processing device including circuitry for sending and receiving Next Hop Resolution Protocol (NHRP) packets;
and
a second data processing device operable for attaching to said layer-3 subnetwork, said second data processing device including circuitry for sending and receiving NHRP packets,
wherein one or more of said NHRP packets include a vendor-private extension for LANE Shortcuts.

1 more element

Dependencies are inferred from the claim text.

Next hop resolution protocol cut-through to LANs

Life of this patent

Next hop resolution protocol cut-through to LANs

Life of this patent

Abstract

Claims30