Subject: [ANCP] Clarification about the Label field in Topology Discovery message

From: <[email-masked]>
Date: Tue, 18 Dec 2007 13:58:04 +0800

Hi all,

While going through the Topology Discovery Message format

in the draft version 02, I had the following question.

1.    The draft says that the label field should be set to zero.

a.    However the length of the label field is variable according to RFC 3292(GSMP v3).

b.    Since the label type(Sec 3.1.3, RFC 3292) is set to zero, there will be no way

to identify the label type and hence its length.

2.    Since the minimum length of the label field(according to RFC3292) is 8 bytes(64 bits).

This includes the bits |x|S|x|x|. Therefore we can set the length of the Label field to

8 bytes(64 bits) and the value is set to 0.

Regards,

Nagendra

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