Subject: RE: your mail

From: "Metz, E.T." <[email-masked]>
Date: Wed, 02 Aug 2000 18:24:29 +0100

A LER (label-edge-router) is the point at which your MPLS network
starts/ends. This means there is no MPLS beyond the LER. Therefore, an LSP
between A and B is not a valid option. It is simply not possible (by
definition).

You may be referring to another situation though. For instance the case
where an RSVP session is initiated between A and B? (instead of an LSP). As
far as I know, the host-to-host RSVP session should (must/will) not trigger
an RSVP-signalled LSP between LER1 and LER2. So, the host-to-host session
will be forwarded. (If remember correctly the type of a host-to-host RSVP
session is different from that of an 'MPLS' RSVP session.)

Does this help, or did I make things worse?

cheers,
	Eduard

> -----Original Message-----
> From: Guy Davies [mailto:[email-masked]]
> Sent: woensdag 2 augustus 2000 16:33
> To: [email-masked]'; [email-masked]
> Cc: [email-masked]
> Subject: RE: your mail
> 
> 
> Also, how does A signal to LER1 if LER1 isn't listening to 
> RSVP on it's
> non-MPLS interfaces?
> 
> Regards,
> 
> Guy
> 
> > -----Original Message-----
> > From: [email-masked] [mailto:[email-masked]]
> > Sent: Wednesday, August 02, 2000 4:19 PM
> > To: [email-masked]
> > Cc: [email-masked]
> > Subject: Re: your mail
> > 
> > 
> > 
> > Hi, Gaitonde
> > 
> > How does the node can signal their requirement for setting up 
> > a RSVP LSP to the LER if it is none-RSVP nodes?
> > 
> > 
> > Regards,
> > Ted 
> > 
> > 
> > Gaitonde Anandprasanna <[email-masked]> wrote:
> > >
> > > 
> > > 
> > > Well i think even if there are applications running on 
> > hosts A and B ,
> > > though the RSVP deamon is not running on theses machines. these
> > > applications can signal their requirement for setting up a 
> > RSVP LSP to the
> > > RSVP process running on the LER and thus can use that LSP.
> > >   But in case the applications are unable to do the above 
> > then the data
> > > flow from tha application will be considered as any other 
> > data which has
> > > not requested for the RSVP LSP. and will recieve normal service.
> > > 
> > > 
> > > 
> > > 
> > >                  
> > >                      _____________________________        
>           
> > >                    _ |ANANDPRASANNA GAITONDE     | _ 
> > >                   / )|COMP. SCIENCE & AUTOMATION |( \
> > >                  / / |D-7,IISc HOSTEL            | \ \
> > >                 / /  |INDIAN INSTITUTE OF SCIENCE|  \ \
> > >               _( (_  |BANGALORE-560012.          |  _) )_
> > >               (((\ \>|_/->___________________<-\_|</ /)))
> > >               (\\\\ \_/ /LAB Ph.(080)3092906  \ \_/ ////)
> > >                \       /HOSTEL Ph.-            \       /  
> > >                 \    _/     (080)3092452        \_    /     
> > >                 /   /-----------------------------\   \     
> >              
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> > >               /      [email-masked]         \
> > >          ---------------------------------------------
> > >             -----------------------------------------------
> > > 
> > > 
> > --------------------------------------------------------------
> > ------------------
> > >         
> > > 
> > **************************************************************
> > ***********  
> > > | | | | __ ___   _____     __ _    _ __ (_) ___ ___     __| 
> > | __ _ _   _
> > > | |_| |/ _` \ \ / / _ \   / _` |  | '_ \| |/ __/ _ \   / _` 
> > |/ _` | | | |
> > > |  _  | (_| |\ V /  __/  | (_| |  | | | | | (_|  __/  | (_| 
> > | (_| | |_| |
> > > |_| |_|\__,_| \_/ \___|   \__,_|  |_| |_|_|\___\___|   
> > \__,_|\__,_|\__, |
> > > 
> > **************************************************************
> > ***********
> > > 
> > > 
> > > 
> > > On Tue, 1 Aug 2000 [email-masked] wrote:
> > > 
> > > > Hi, 
> > > > 
> > > > I have a question about RSVP LSP:
> > > > 
> > > > if we have a LSP like below:
> > > > 
> > > > A--LER1--LSR--LER2--B
> > > > 
> > > > A,B are none rsvp nodes. LER1, LSR and LER2 are RSVP nodes. 
> > > > if LSP is setup from A to B, what happened to LER1, LSR 
> and LER2?
> > > > 
> > > > Is there a RSVP LSP established from LER1 to LER2? or 
> > they just forward sessions without another RSVP LSP setup?
> > > > 
> > > > 
> > > > Thanks in advance
> > > > John
> > > > 
> > > > ----------
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