Article View: comp.protocols.iso
Article #11528802-2 Use of P_FLAG
From: Tony McGregor
Date: Thu, 28 Feb 1991 03:19
Date: Thu, 28 Feb 1991 03:19
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1610 bytes
I've been reading the ISO 8802-2 Logical Link Control standard and I'm having a problem understanding the use of the P_FLAG. Table 7-1 (Connection Component State Transitions) on page 97, Current state ADM, Event RECEIVE_SABME_CMD(P=X) includes the action P_FLAG:=P. I assumed that this was so that the UA_RSP sent (if the network layer accepts the call) could have the F bit set appropriately. However in state CONN, event CONNECT_RESPONSE, F_FLAG is used to determine the value of the F bit (action SEND_UA_RSP(F=F_FLAG)). As far as I can see the F_FLAG hasn't been set yet. Is this a misprint or have I missed something. If it is a misprint which is wrong? Tony ---------------------------------------------------------------------- Tony McGregor ( ajm@monu6.cc.monash.edu.au ) Department of Robotics and Digital Technology, Monash University PO Box 197, Caulfield East, Vic 3145, Australia Phone: +61 3 5732014 Fax: +61 3 5732745 ----------------------------------------------------------------------
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arc1-ca.pugleaf.net!utzoo!utgpu!watserv1!watmath!att!linac!pacific.mps.ohio-state.edu!zaphod.mps.ohio-state.edu!rpi!batcomputer!munnari.oz.au!bruce!monu0.cc.monash.edu.au!monu6!ajmShow Full Headers
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!watserv1!watmath!att!linac!pacific.mps.ohio-state.edu!zaphod.mps.ohio-state.edu!rpi!batcomputer!munnari.oz.au!bruce!monu0.cc.monash.edu.au!monu6!ajm From: ajm@monu6.cc.monash.edu.au (Tony McGregor) Newsgroups: comp.protocols.iso,comp.dcom.lans Subject: 8802-2 Use of P_FLAG Summary: Is this an error in the standard? Keywords: IEEE 802.2 ISO 8802-2 state transition table Message-ID: <1991Feb28.031949.25743@monu6.cc.monash.edu.au> Date: 28 Feb 91 03:19:49 GMT Organization: Caulfield Campus, Monash University, Melb., Australia. Lines: 23