From: Dhruv Dhody Sent: Tuesday, October 15, 2013 3:59 PM To: Qin Wu; Margaria, Cyril (Coriant - DE/Munich); He, Peng; Fatai Zhang; [email protected]; 'Ramon Casellas'; 'Jonathan Hardwick'; [email protected] Subject: Bandwidth Utilization Encoding in PCEP (was RE: [Pce] Bandwidth: Comments on draft-ietf-pce-gmpls-pcep-extensions-08)
Hi All, (snip) Now considering draft-wu-pce-pcep-link-bw-utilization-00, I did not check the related IGP draft, but my understanding is that the BU object constrain the PCE to leave a given percentage free on each link. The first point I see is that the BANDWIDTH /size of the pipe is not related to this information, correct?. [Qin]: closely. My understanding it is more related to how much bandwidth is utilized on each link rather than how much bandwidth is reserved per link. [DD] The BU object constrain the PCE to ’not select a link in the path’ if the current utilization of the link is above a certain X%. So yes in a way it lets PCE leave at least a given percentage free on each link in the path. And yes this information is not related to BANDWIDTH /size. [Qin]: Exactly. Also thanks for answering the 1st point described above. I fully agree.
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