Dear draft-ietf-pce-hierarchy-fwk-04 authors,
After implementing the H-PCE architecture and writing the solution
document (currently draft-zhang-pce-hierarchy-extensions-01 ) we found a couple
of small issues that could be considered in the framework H-PCE document:
- Section 1.3.1 and 4.1 mention "Disallow domain-re-entry" as an
objective function. I my opinion this should better be a policy. You may want
to minimize the total cost, but don't allow to re-enter a domain.
- The objective functions apply to the whole end to end path. It would
be good to have the possibility to specify OF that apply only to the
intra-domain paths . E.g. you may want to minimize the number of transit
domains, minimizing the cost of the intra-domain paths (or any other
combination you may think). The text in section 4.1 may allow this, but it is
a bit vague "More than one OF (or a composite OF) ....". The specific solution
would be discussed later in the solution document.
Best Regards,
Óscar
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