RFC 4054

Impairments and Other Constraints on Optical Layer Routing, May 2005

Canonical URL:
https://www.rfc-editor.org/rfc/rfc4054.txt
File formats:
Plain TextPDF
Status:
INFORMATIONAL
Authors:
J. Strand, Ed.
A. Chiu, Ed.
Stream:
IETF
Source:
ipo (subip)

Cite this RFC: TXT  |  XML

DOI:  10.17487/RFC4054

Discuss this RFC: Send questions or comments to iesg@ietf.org

Other actions: Submit Errata  |  Find IPR Disclosures from the IETF


Abstract

Optical networking poses a number challenges for Generalized Multi-Protocol Label Switching (GMPLS). Fundamentally, optical technology is an analog rather than digital technology whereby the optical layer is lowest in the transport hierarchy and hence has an intimate relationship with the physical geography of the network. This contribution surveys some of the aspects of optical networks that impact routing and identifies possible GMPLS responses for each: (1) Constraints arising from the design of new software controllable network elements, (2) Constraints in a single all-optical domain without wavelength conversion, (3) Complications arising in more complex networks incorporating both all-optical and opaque architectures, and (4) Impacts of diversity constraints. This memo provides information for the Internet community.


For the definition of Status, see RFC 2026.

For the definition of Stream, see RFC 4844.


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