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Sharing Processing Power and Memory in Combo-mode

The CPU processing power in a combo-mode SPU is shared based on the platform and the number of SPUs in the system. Similarly, the CPU memory is also shared between the central point and SPU.

An SPU has multiple cores (CPUs) for networking processing. In "small" SPU combo-mode, CPU functionality takes a small portion of the cores, whereas "medium" SPU combo-mode requires a larger portion of cores. The processing power for central point functionalities and flow processing is shared, based on the number of SPUs, as shown in Table 1.

Table 31: Combo-mode Processing:

Number of SPUs	1	2	3	4 or More than 4
SRX 3400	Small	Medium	Medium	Medium
SRX 3600	Small	Medium	Medium	Medium

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