The MPLS WG Archive

["Hemant P. Kelkar" <hemant@cyberspace.org>]

Hi Aditya,

Before classification, the 5 tuple Source IP + Destination IP + Service +
Source Port + Destination Port or  the tuple Source IP + Destination IP
determines the flow.
After classification since the flow is denoted by the label assigned,
there is no further need of classification.

--
Hemant

Date: Thu, 27 Sep 2001 21:41:24 +0530
From: Adithya Bhat <adithya@sasken.com>
To: Hemant P. Kelkar <hemant@cyberspace.org>
Cc: krishnakanth.rao@mail.cominsights.com, mpls-ops@mplsrc.com,
mpls@UU.NET
Subject: Re: label values

Hi Hemant,

Once a label is assigned to a set of packets, the label effectively
defines
the "flow" through the LSP,
So will it not be better to say that, packets will be classified based on
the
Labels ??

-Adithya


"Hemant P. Kelkar" wrote:

> Hi Krishnakanth,
> Label values are of local significance only , limited significance
between
> the neighbour routers (LSRs). Hence, there may be same label values on
two
> different LSPs in the MPLS Domain.
> Packets are classified into different FECs using a flow classifier e.g.
> same source/destination IP addresses, and service types. (TCP port
> numbers).
>
> --
> Hemant