Article View: comp.protocols.ppp
Article #316Re: PPPoA
From: fubu
Date: Mon, 19 Feb 2001 06:17
Date: Mon, 19 Feb 2001 06:17
41 lines
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2530 bytes
I think that, if it helps me to get a better high score on Robotron, then I am all for it. Seriously, this was so far over my head, I couldn't even feel the whoosh <g> Fubu On Fri, 16 Feb 2001 08:35:14 -0500, Lawrence Baldwin <baldwinlSPAMMENOT@mynetwatchman.com> wrote: > >http://www.cis.ohio-state.edu/htbin/rfc/rfc2364.html , states: > > Control Signals - The AAL5 layer MUST provide control signals to > the PPP layer which indicate when the virtual connection link > has become connected or disconnected. These provide the "Up" > and "Down" events to the LCP state machine [1] within the PPP >layer. > >Some ASDL providers purposely disable OAM events within their ATM >networks, thus preventing the up/down state of the PVC to be propagated >between the two peers in a PPPoA connection. For example, if a customer >ADSL modem loses sync, the DSLAM may not indicate that event to the >attached PPPoA aggregation router. > >Techs I've spoken to at Redback, indicate that this is necessary due to >the many *false* pvc down indications that would occur and that it's not >necessary to relay this info for PPP to work reliably. > >Given that this is listed as "MUST" in the spec, I'm curious if anyone >can think of how this might impact the integrity/reliability of the PPP >FSM (finite state machine). > >lb. > >------------------------- >Lawrence Baldwin >Protocol Scientist >678-624-0924 >http://www.mynetwatchman.com/about.htm - I'm under attack, now what?
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 103eaf,dee4a2db0f94c51d X-Google-Attributes: gid103eaf,public X-Google-Thread: 1122a6,dee4a2db0f94c51d X-Google-Attributes: gid1122a6,public X-Google-ArrivalTime: 2001-02-18 22:12:23 PST Path: arc1-ca.pugleaf.net!supernews.google.com!sn-xit-02!supernews.com!news.tele.dk!128.230.129.106!news.maxwell.syr.edu!newsfeed.atl.bellsouth.net.MISMATCH!newsfeed.atl!news1.mco.POSTED!not-for-mail From: fubu@fubu.com (fubu) Newsgroups: comp.protocols.ppp,bellsouth.net.support.adsl Subject: Re: PPPoA Message-ID: <3a90ba22.16083295@205.152.111.27> References: <3A8D2C92.8B580C31@mynetwatchman.com> X-Newsreader: Forte Agent 1.5/32.452 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Lines: 42 Date: Mon, 19 Feb 2001 06:17:50 GMT NNTP-Posting-Host: 216.78.184.229 X-Trace: news1.mco 982563102 216.78.184.229 (Mon, 19 Feb 2001 01:11:42 EST) NNTP-Posting-Date: Mon, 19 Feb 2001 01:11:42 EST