For the description of Huawei Oceantor9000 products, which of the following options is incorrect?
Oceanstr 9000 adopts non-comprehensive symmetrical architecture
Oceanstr 9000 provides flexible and seamless expansion of 3-288 nodes
Oceanstor 9000 system adopts fully interconnected and fully redundant networking mode
Oceanstor 9000 adopts distributed cluster architecture, no single point of failure
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