Hi Chengen, In this case, however, conflicts already exist. The power-group abstraction > used in draft-many-lsr-power-group and draft-many-teas-power steering has > no defined relationship to the power states and hierarchy being specified > in the GREEN Framework and YANG module. As noted earlier, sleep‑wake > coordination procedures are deliberately left out of the routing drafts, > yet those procedures will inevitably depend on the very state model that > GREEN is defining. >
As previously discussed, the power group abstraction is not at all in conflict with the GREEN model. GREEN models things at the component level. Highly appropriate and potentially quite detailed. Including that level of detail in the IGP is burdensome, as we have limited space and are trying to be much more efficient in our encoding. Instead, the power-group is an abstraction of the components that can be place into power-sleep. This allows multiple components that are power-sleep capable and have only a single dependency to be encoded as a single sub-TLV. Regards, Tony
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