05742604 is referenced by 332 patents and cites 3 patents.

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.

Title
Interswitch link mechanism for connecting high-performance network switches
Application Number
8/623142
Publication Number
5742604
Application Date
March 28, 1996
Publication Date
April 21, 1998
Inventor
Norman Finn
San Jose
CA, US
Tom Edsall
Mountain View
CA, US
Agent
Cesari and McKenna
Assignee
Cisco Systems
CA, US
IPC
H04L 12/66
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