Abstract: A warm restart is initiated at a network processor device, which includes a switch, one or more hardware components, and physical layer circuitry to implement one or more communication links. The switch is to be reset during the warm restart while the one or more communication links remain in an up state. A notification of the warm restart is sent to a set of drivers for the one or more hardware components and notifications are received from the set of drivers, where the notifications identify that reinitializations of the hardware components in association with the warm restart are complete. An indication is sent that the reinitializations of the hardware components are complete, where completion of the warm restart based on the indication.

Abstract: An apparatus for removing a contaminant from a gas effluent. The apparatus comprises an absorption tower in which is placed a suitable packing where the gas effluent and contaminant-absorbing liquid contact one another. A recirculation path transfers spent contaminant-absorbing liquid to the top of the tower allowing the liquid to effect a new contaminant-removal cycle. Reagent is introduced in the recirculation path to refresh the contaminant-absorbing liquid. A dual-controller system dynamically varies the amount of reagent introduced in the recirculation path in accordance with the amount of contaminant in the gas effluent. A master controller calculates a reagent concentration set-point. The set-point is communicated to a slave controller that meters reagent in the recirculation path according to the set-point value.