There are six Cisco TelePresence MCU MSE 8510 blades in a Cisco TelePresence MSE 8000 chassis. The customer wants to allow cascading for larger conferences. What must an engineer remember when…

The maximum cluster size for the MCU MSE 8510 is not limited to four blades; this figure is incorrect and would not prevent a six-blade deployment.

MCU MSE 8510 blades do support cascading; this is a documented capability of the platform.

While the blades can optionally be configured as a cluster, stating this as the key requirement conflates clustering with cascading, which are separate and independent features.

Cascading is a call-control mechanism that links separate MCU resources over SIP or H.323 to handle conferences that exceed a single unit's capacity, and it operates independently of whether those MCUs are part of the same cluster. An engineer with six blades can enable cascading without first forming a cluster, because the two features address different scaling needs.