Process for determining a target ATM address

US5974452A · kind A · utility

Assignee

• Aktiengesellschaft · DE

Inventors

• Stefan Karapetkov · Munich, DE
• Ingrid Fromm · Munich, DE
• Bernhard Petri · Hersbruck, DE

Key dates

• Filing date: Dec 22, 1997
• Grant date: Oct 26, 1999
• Expiry date: Dec 22, 2017

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04L2012/5645
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

Method for the determination of a destination ATM address as reply to an address resolution inquiry output by a source LAN emulation client of a first ELAN when the destination MAC address to be resolved is allocated to at least one LAN emulation client of a second ELAN and the first as well as the second ELAN are connected to a higher-ranking network, having the following method steps: encapsulation of the address resolution request present in the first ELAN as ELAN frame in a frame format of the CLS wide-area network and transmission via the CLS wide-area network to the second ELAN; de-encapsulation of the encapsulated address resolution request and handover to an LAN emulation server LES of the second ELAN in the ELAN frame format; resolution of the destination MAC address into an appertaining ATM address by this LAN emulation server of the second ELAN and output of an address resolution response; encapsulation of this address resolution response into the frame format of the CLS wide-area network and transmission to the first ELAN; de-encapsulation of the encapsulated address resolution response and handover to the source LAN emulation client.