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Article View: comp.protocols.ppp
Article #316

Re: PPPoA

#316
From: fubu
Date: Mon, 19 Feb 2001 06:17
41 lines
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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From: fubu@fubu.com (fubu)
Newsgroups: comp.protocols.ppp,bellsouth.net.support.adsl
Subject: Re: PPPoA
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