EP 1273139 A2 20030108 - METHOD AND DEVICE FOR LAYER 3 ADDRESS LEARNING
Title (en)
METHOD AND DEVICE FOR LAYER 3 ADDRESS LEARNING
Title (de)
VERFAHREN UND VORRICHTUNG ZUM LERNEN VON SCHICHT-3-ADRESSEN
Title (fr)
SCHEMA D'AUTO-APPRENTISSAGE D'ADRESSE DE COUCHE 3 PROGRAMMABLE DANS UN COMMUTATEUR DE RESEAU
Publication
Application
Priority
- US 0109373 W 20010323
- US 54861200 A 20000413
Abstract (en)
[origin: WO0180493A2] A packet identifier module is configured for determining whether a received data packet originated from a router. If the packet identifier module identifies the received data packet as being from a network node other than the router, the switch module selectively stores the layer 2 address and the associated layer 3 address of the data packet as an associated layer 2-layer 3 address pair in an address table. The selective storing of the associated layer 2-layer 3 address is also referred to as learning the internet protocol (IP)-media access control association (MAC) of the data packet. By selectively learning the IP-MAC associations of selected data packets from the non-router ports, the likelihood of overflowing the address table is reduced. Furthermore, by using the learned IP-MAC associations, the network switch may switch layer 3 data packets bypassing the router and reducing latency.
IPC 1-7
IPC 8 full level
H04L 12/46 (2006.01); H04L 49/111 (2022.01)
CPC (source: EP KR)
H04L 45/742 (2013.01 - KR); H04L 49/602 (2013.01 - EP); H04L 61/10 (2013.01 - EP); H04L 61/59 (2022.05 - EP); H04L 49/3009 (2013.01 - EP); H04L 49/351 (2013.01 - EP); H04L 49/352 (2013.01 - EP); H04L 61/00 (2013.01 - EP)
Citation (search report)
See references of WO 0180493A2
Designated contracting state (EPC)
DE GB
DOCDB simple family (publication)
WO 0180493 A2 20011025; WO 0180493 A3 20020516; CN 1456004 A 20031112; EP 1273139 A2 20030108; JP 2004515088 A 20040520; KR 20020091203 A 20021205
DOCDB simple family (application)
US 0109373 W 20010323; CN 01807985 A 20010323; EP 01922614 A 20010323; JP 2001576622 A 20010323; KR 20027013752 A 20021012