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LSP life time

  • From: David Charlap <david.charlap@marconi.com>
  • Date: Mon, 27 Nov 2000 11:47:49 -0500

Jeremy Lawrence wrote:
> 
> It is effectively unlimited. If a single extra level of labelling
> is used inside the LSP, 1M LSPs can be carried inside an LSP.

Possibly more than that, depending on what kind of links the LSP is
traversing.  The 20-bit label size is the generalized label used when
sending labeled traffic over packet-oriented links (like POS).

When sending over connection-oriented links (like ATM or frame relay),
the label is the link's connection identifier (VPI/VCI or DLCI), and its
range is subject to the restrictions imposed by that technology.  This
range may be larger than 20 bits.

-- David

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