From: Swen Gerber <Swen.Gerber@Informatik.TU-Chemnitz.DE>
Subject: ISL encapsulation support (kernelpatch)
Date: Wed, 22 Apr 1998 13:43:37 GMT

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Inter Switch Link (ISL) is used to inter-connect two VLAN capable Ethernet
switches using the Ethernet media. ISL protocol is developed by CISCO
Systems Inc. 
If a Linux server should be member in several VLAN's you have to configure
the switch port as a Trunk, and connect the server directly to this Trunk.
The Trunk is using the ISL protocol, so the Linux server have to implement
this protocol. The packets on the ISL link contain a standard Ethernet and
the VLAN information associated with that frame. 
ISL is only supported by Cisco switches (Catalyst5000, ProStack).


ISL encapsulation support for LINUX 
http://www.tu-chemnitz.de/~sger/isl/



___ name:Swen.Gerber                    ___
___ mail:sger@informatik.tu-chemnitz.de ___
___ mail:sgerber@debis.com              ___




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