The MPLS WG Archive

[Robert Raszuk <raszuk@cisco.com>]

Just simple yahoo query would do:

http://www.ics.forth.gr/ICS/acti/netgroup/documents/mpls/draft-ietf-mpls-ecn-00.txt

R.

> CATANZARITI Sergio FTR&D/TI wrote:
> 
>      Sorry, in my previous e-mail I meant draft-ietf-mpls-diff-ext-04.txt
>      does not say anything about ECN ...,
>      the problem is that I have not received any draft-ietf-mpls-ecn-00.txt.
> 
>      Sergio
> 
>      --------------------------------------------------------------------
>      Sergio Catanzariti
>      Senior Project Manager, Technology Integration
>      France Telecom R&D
>      1000 Marina Boulevard Suite 300
>      Brisbane CA 94005
>      Tel. 650-875-1526
>      Fax. 650-875-1505
>      email:sergio.catanzariti@rd.francetelecom.com
>      --------------------------------------------------------------------
> 
>      -----Original Message-----
>      From:   CATANZARITI Sergio FTR&D/TI
>      [SMTP:sergio.catanzariti@rd.francetelecom.com]
>      Sent:   Wednesday, May 31, 2000 12:13 PM
>      To:     'Shahram Davari'
>      Cc:     mpls@UU.NET; 'Andrzej Czerczak'; rraszuk@cisco.com
>      Subject:        RE: Re: MPLS - ATM interworking?
> 
>      Shahram,
> 
>              the draft-ietf-mpls-ecn-00.txt does not say anything about ECN
>      usage and applications, but only about ECN support and definition in an
>      MPLS network, the things are quite different. So, I have the same
>      question: where I can find Ramakrishnan et al., "A Proposal to
>      Incorporate ECN in MPLS", draft-ietf-mpls-ecn-00.txt?
> 
>              Also, I do believe that the ECN in an MPLS network works on
>      resource types (LSPs) quite different than native IP flows. So, the
>      source address is not that useful here, albeit in an ECN schema in pure
>      IP networks.
> 
>              ECN in an MPLS network is supposed to signal congestion in an
>      edge-to-edge fashion (different from end-to-end) where the LERs could
>      cooperate on that.
> 
>              Absolutely, I want to associate LSPs with congestion dynamics to
>      eventually slow them down. How can I do that? That's the question.
> 
>      Sergio
> 
> 
>      --------------------------------------------------------------------
>      Sergio Catanzariti
>      Senior Project Manager, Technology Integration
>      France Telecom R&D
>      1000 Marina Boulevard Suite 300
>      Brisbane CA 94005
>      Tel. 650-875-1526
>      Fax. 650-875-1505
>      email:sergio.catanzariti@rd.francetelecom.com
>      --------------------------------------------------------------------
> 
>              -----Original Message-----
>      From:   Shahram Davari [SMTP:Shahram_Davari@pmc-sierra.com]
>      Sent:   Wednesday, May 31, 2000 11:34 AM
>      To:     'Andrzej Czerczak'; rraszuk@cisco.com
>      Cc:     mpls@UU.NET
>      Subject:        RE: Re: MPLS - ATM interworking?
> 
>              Andrzej,
> 
>              1)ECN usage is defined in draft-ietf-mpls-ecn-00.txt, which is
>      attached to
>      this email.
> 
>              2)Congestion Notification is and end-to-end signal which is
>      meant to be used
>      by TCP. You don't need to know the ingress LSR or even the LSP from
>      which
>      the congested packet is received. The receiver may send the congestion
>      notification to the sender using source IP address, either through
>      another
>      LSP or even through normal IP hop-by-hop routing.
> 
>              Regards,
>      -Shahram
> 
>              >-----Original Message-----
>      >From: Andrzej Czerczak [ <mailto:Andrzej_Czerczak/HeadQ@netia.pl>]
>      >Sent: Wednesday, May 31, 2000 1:46 PM
>      >To: rraszuk@cisco.com
>      >Cc: mpls@UU.NET
>      >Subject: Re:Re: MPLS - ATM interworking?
>      >
>      >
>      >
>      >Robert,
>      >First of all thanks for your comments.
>      >
>      >>Have you read draft MPLS Support of Differentiated Services
>      >>draft-ietf-mpls-diff-ext-04.txt where we are proposing to use the ECN
>      >>(explicit congestion notification) on a per LSP basis using
>      >the EXP bits
>      >>in the shim header ? Currently this is the most attractive
>      >option, but I
>      >> am not aware of any implementation support this today.
>      >
>      >
>      >
>      >a) Document draft-ietf-mpls-diff-ext-04.txt does not not
>      >define the usage
>      >of ECN.
>      >
>      >b) Taking into account label merging capabilites of LSRs, how
>      >can determine
>      >to which ingress LSP to to send Congestion Notification?
>      >
>      >c) Where can I find:
>      >
>      >Ramakrishnan et al., "A Proposal to Incorporate ECN in
>      >   MPLS", draft-ietf-mpls-ecn-00.txt?
> 
>              >
>      >
>      >
>      >What I'd like to say is, that at least during first phases of
>      >implementations (before entire infrastructure will become IP)
>      >interworking
>      >of MPLS core and ATM edge will be important, but I could not find a
>      >proposal of how to do interworking between them.
>      >
>      >
>      >
>      >Andrzej
>      >
>      >
>      >
>      >
>      >
>      >
>       << File: draft-mpls-ecn-00.txt >>