Wireshark-users: [Wireshark-users] why the group LSAP's exist?

From: "Eduardo Escudero Sánchez" <edu.kungfu@xxxxxxxxx>
Date: Tue, 1 Aug 2006 20:22:58 +0200
i wanted to know what are the group LSAP addresses for in LLC. If you receive a frame with a destination address witj the least significant bit set to 1 (group adrress) to which LSAP will you have to deliver the information of that frame?
For example you receive a frame with destination address=0x07 (Group TCP/IP address)... Will you have to look then for the 0x06 LSAP ansd pass teh information to it? or maybe there can be two different LSAP's: one for individual address and other for group address ?(one LSAP with 0x06 address and another with 0x07 address)
If it is the last case how do you know then, when you receive an LLC frame, if it is sent from an LLC group-address LSAP or an individual-address LSAP if teh source address field of the frame only indicates you if it is a commend or a response??
Can someone help me solve the mess i have?