The MPLS WG Archive

[Shahram Davari <Shahram_Davari@pmc-sierra.com>]

Hi Daniel,

You can do admission control for E-LSP too. But the admission control is done for the aggregate of all supported PHBs in that LSP.

Regards,
-Shahram

> -----Original Message-----
> From: Daniel N. Bauer [mailto:dnb@zurich.ibm.com]
> Sent: Thursday, November 23, 2000 3:00 AM
> To: Simeone Mastropietro
> Cc: mpls@UU.NET
> Subject: Re: E-LSP or L-LSP
> 
> 
> Here's one difference that might or might not be important:
> 
> Packets that are carried inside an E-LSP might belong to
> different PHB scheduling classes, whereas packets inside
> an L-LSP belong to the same PHB scheduling class.
> This difference is important in the case where admission control
> is required/wanted: For L-LSPs, admission control can be carried
> out since the traffic specification in the signaling matches a
> single PHB scheduling class. For E-LSPs, this is not true and
> consequently, no admission control can be carried out.
> 
> Regards,
> 
> -Daniel
> 
> 
> Simeone Mastropietro wrote:
> > 
> > Hi All,
> > I am a novel researcher on MPLS and TE for Co.Ri.Tel ( 
> Rome, Italy)...
> > Is there anyone that can help me to understand when E-LSPs or L-LSPs
> > actually should be used?
> > Thanks in advance
> > 
> > Simeone Mastropietro
>