The MPLS-OPS Archive

[Ajay Simha <asimha@cisco.com>]

On Sun, 14 Jul 2002, Sidnie Feit wrote:

>SF:With MPLS, packets are placed onto a pre-existing path, so maintaining
>SF:order is not a problem unless the path is changed (which should be an
>SF:uncommon event). Even then, usually a new path is stably set up before
>SF:traffic is switched over.

Of course we should disable things like per-packet load-sharing in the core.

-ajay
>SF:
>SF:Frame Relay can be directly integrated into MPLS -- if the Frame Relay
>SF:switches have been updated to perform label distribution and routing. The
>SF:DLCI is used as the label.
>SF:See RFC 3034.
>SF:
>SF:Beyond this, draft-martini-l2circuit-encap-mpls decribes how frame relay
>SF:frames can be carried as MPLS payloads across label switched paths that
>SF:span any types of media.
>SF:
>SF:The frame relay header is replaced by a control word that contains the
>SF:FECN, BECN, and DE bits. There also is a sequence number field, but note
>SF:that out-of order delivery should be a rare event on an MPLS network.
>SF:
>SF:Best regards,
>SF:Sidnie Feit
>SF:
>SF: >
>SF: >
>SF: > Date: 2002/07/13 Sat PM 10:32:35 EDT
>SF: > To: <mpls-ops@mplsrc.com>
>SF: > Subject: [MPLS-OPS]: MPLS and Frame Relay
>SF: >
>SF: > Has anyone heard if there has been any work regarding Frame Relay over MPLS
>SF: > and whether there is a way to guarrantee frames will not arrive out of
>SF: > sequence?    Possibly some new drafts that I haven't heard of have been
>SF: > developed or something?
>SF: >
>SF: > Thanks in advance
>SF: >
>SF: > Brian
>SF: >
>SF:
>SF:
>SF:-------
>SF:The MPLS-OPS Mailing List
>SF:Subscribe/Unsubscribe:  http://www.mplsrc.com/mplsops.shtml
>SF:Archive: http://www.mplsrc.com/mpls-ops_archive.shtml
>SF:


-------
The MPLS-OPS Mailing List
Subscribe/Unsubscribe:  http://www.mplsrc.com/mplsops.shtml
Archive: http://www.mplsrc.com/mpls-ops_archive.shtml