Interswitch link mechanism for connecting high-performance netwo

Details Interswitch link mechanism for connecting high-performance netwo Interswitch link mechanism for connecting high-performance netwo

1996-03-28

1998-04-21

Olms, Douglas W.

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

H04L 1266

Patent

active

057426040

ABSTRACT:
An encapsulation mechanism efficiently transports packets between ports of different switches in a network on the basis of, inter alia, virtual local area network (VLAN) associations among those ports. The switches are preferably interconnected by a novel interswitch link (ISL) mechanism that appends ISL destination and source information, along with ISL error detection information, to VLAN-modified packets. The ISL mechanism keeps the VLAN associations of the packets intact during transfer between the switches in accordance with a high-performance switching bus architecture.

REFERENCES:
patent: 4933937 (1990-06-01), Konishi
patent: 5140585 (1992-08-01), Tomikawa
patent: 5394402 (1995-02-01), Ross

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