Hello everyone, As you may have noticed, another version of the OSPF TE Express Path draft has been posted. We made a number of changes based on feedback from IETF 80. We invite your comments and suggestions. The main changes include:
-We have consolidated some sub-TLVs for efficiency. There are no longer nominal and anomalous sub-TLVs for delay and loss. The functionality for signaling steady state verses abnormal performance for these parameters have been moved into two sub-TLVs (where we used to have four). -In order to advertise both normal and abnormal network performance state in consolidated sub-TLVs, a bit, called the anomalous (A) but has been added to certain sub-TLVs. The A bit is set when the measured value of a parameter exceeds a configured maximum threshold. The A bit is cleared when the measured value falls below its configured reuse threshold. If the A bit is clear, the sub-TLV represents steady state link performance. -We changed the encodings of certain variables from floating point to fixed point. This change permits the addition of the A bit (when necessary), it allows bit-space reservations to be made, and it permits a common TLV format across the bulk of the TLVs in the draft. In addition, the new encodings address concerns about granularity and interoperability. -We added sub-TLVs for Residual Bandwidth and Available Bandwidth. Residual bandwidth is defined as the Maximum Bandwidth [RFC3630] minus the bandwidth currently allocated to RSVP-TE LSPs. Available bandwidth is defined to be residual bandwidth minus the measured bandwidth used for the actual forwarding of non-RSVP-TE LSP packets. -Various other modifications were made across the draft. These include, but are not limited to, the abstract, the introduction, the thresholding specifications, and a number of field descriptions. -Last, but certainly not least, Stefano Providi has joined the draft We look forward to hearing your comments and concerns. Thanks, Spencer, Alia, Dave, John, Stefano _______________________________________________ OSPF mailing list [email protected] https://www.ietf.org/mailman/listinfo/ospf
