CCAMP Working Group Zafar Ali
Internet Draft George Swallow
Intended status: Standard Track Clarence Filsfils
Expires: April 18, 2014 Luyuan Fang
Deutsche Telekom AG
October 19, 2013
Resource ReserVation Protocol-Traffic Engineering (RSVP-TE)
Extension for Signaling Objective Function and Metric Bound
Status of this Memo
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Ali, Swallow, Filsfils Expires April 2014 [Page 1]
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In particular networks such as those used by financial
institutions, network performance criteria such as latency are
becoming critical to data path selection. However cost is still an
important consideration. This leads to a situation where path
calculation involves multiple metrics and more complex objective
When using GMPLS control plane, there are many scenarios in which a
node may need to request a remote node to perform path computation
or expansion, like for example multi-domain LSP setup, Generalized
Multi-Protocol Label Switching (GMPLS) User-Network Interface (UNI)
or simply the utilization of a loose ERO in intra domain signaling.
In such cases, the node requesting for the setup of an LSP needs to
convey the required objective function to the remote node, to
enable it to perform route computation in the desired fashion.
Similarly, there are cases the ingress needs to indicate a TE
metric bound for a loose segment that is expanded by a remote node.
This document defines extensions to the RSVP-TE Protocol to allow