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IETF RFC 4247
[ACTIVE]

Requirements for Header Compression over MPLS

Metadata

Publisher
IETF
Doc Type
Informational
Pages
11
Abstract
Voice over IP (VoIP) typically uses the encapsulation voice/RTP/UDP/IP. When MPLS labels are added, this becomes voice/RTP/UDP/IP/MPLS-labels. For an MPLS VPN, the packet header is typically 48 bytes, while the voice payload is often no more than 30 bytes, for example. Header compression can significantly reduce the overhead through various compression mechanisms, such as enhanced compressed RTP (ECRTP) and robust header compression (ROHC). We consider using MPLS to route compressed packets over an MPLS Label Switched Path (LSP) without compression/decompression cycles at each router. This approach can increase the bandwidth efficiency as well as processing scalability of the maximum number of simultaneous flows that use header compression at each router. In this document, we give a problem statement, goals and requirements, and an example scenario. This memo provides information for the Internet community.
Publication Date
2005-11-01
Status Note
Informational
DOI
10.17487/RFC4247
Link
https://doi.org/10.17487/RFC4247
Author(s)
Gerald Ash
Bur Goode
Jim Hand
Raymond Zhang
Keyword(s)
MPLS, VoIP
Latest version of IETF RFC 4247

Document Versions — IETF RFC 4247

  • ▶ IETF RFC 4247 (2005-11-01)
    THIS DOC [ACTIVE] [LATEST VERSION]

Normative Reference(s)

Bibliographic Reference(s)

  • Ash, G., Goode, B., Hand, J., Jonsson, L-E., Malis, A., and R. Zhang, "Protocol Extensions for Header Compression over MPLS", work in progress. EXTERNAL
  • Pelletier, G., Jonsson, L-E., and K. Sandlund, "RObust Header Compression (ROHC): ROHC over Channels that can Reorder Packets", work in progress. EXTERNAL
  • Martini, L., El-Aawar, N., Smith, T., and G. Heron, "Pseudowire Setup and Maintenance using the Label Distribution Protocol", work in progress. EXTERNAL
  • IETF RFC 2547 [Superseded*]
  • IETF RFC 3032 [Active*]
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IETF RFC 4247, Requirements for Header Compression over MPLS. Available at https://doi.org/10.17487/RFC4247
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IETF RFC 4247, Requirements for Header Compression over MPLS. Available at https://doi.org/10.17487/RFC4247

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IETF RFC 4247, Requirements for Header Compression over MPLS. Available at https://doi.org/10.17487/RFC4247
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<span class="citation"><cite>IETF RFC 4247</cite>, Requirements for Header Compression over MPLS. Available at <a href="https://doi.org/10.17487/RFC4247" target="_blank" rel="noopener">https://doi.org/10.17487/RFC4247</a></span>

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IETF RFC 4247, Requirements for Header Compression over MPLS
doi: 10.17487/RFC4247
url: https://doi.org/10.17487/RFC4247
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<cite id="bib-rfc4247">IETF RFC 4247</cite>, Requirements for Header Compression over MPLS
<span class="doi">10.17487/RFC4247</span>
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