The MPLS WG Archive

[Michael Mandelberg <mmandelberg@lopsys.com>]

I'm afraid this does not answer the question. When using Label Set for wavebands, the subchannels are labels. The label for a waveband has three fields:

        a waveband id

        start label

        end label

 

How is the subchannel specified? There are three possibilities:

 

1) It is just the waveband

2) It is the waveband, start/stop label triple

3) It is a single wavelength label

 

If it is possibility three, this means that for each waveband label, multiple wavelength labels are listed. If it is one or two, then how is ordering defined in the case where the action field is set to inclusive or exclusive range? In other words, what procedure is to be used to decide if a given waveband label is in a given range? As an example, consider the following waveband labels:

 

waveband label #1:

waveband id = 1

start label = 12

stop label = 17

 

 

waveband label #2:

waveband id = 1

start label = 14

stop label = 19

 

I'm assuming that both of these make sense, otherwise, if the start and stop values were implied by the wavband id, why include the start and stop labels at all?

 

Now suppose a Label Set Object, with action = inclusive range, is specified. First, how is it specified? This is the same question stated above. Assume it is the lower and upper bounds are specifed by the two labels above. The question is, is the following label allowed by this range:

 

waveband id = 1

start label = 13

stop label = 18

 

 

 

 

 

 

-----Original Message-----
From: Naga Srinivas V [mailto:nagasv@future.futsoft.com]
Sent: Wednesday, August 06, 2003 10:53 PM
To: Michael Mandelberg; mpls@uu.net
Subject: Re: Label Set question

I think, in rfc 3472  section 2.5.1. Procedures is explaning about the Label set procedures, will help you.

 

 

http://community.roxen.com/developers/idocs/rfc/rfc3472.html 

 

 

Thanks,

srinivas.

 

----- Original Message -----

From: Michael Mandelberg

To: mpls@uu.net

Sent: Thursday, August 07, 2003 8:16 AM

Subject: FW: Label Set question

How does the label set work with waveband labels? For the list form, are the subobjects waveband ids, or are the start and stop values listed as well? For the range form, again is it just ids? If not, then how is ordering defined to deterimine whether another band laebl is within the range?

 

Thanks

 

Michael Mandelberg

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