Black Box KV0416A-R2, KV1424A-R2, KV1416A-R2, KV0424A-R2 manual Cascading multiple units, See also

Cascading multiple units

The ServSwitch CX (with IP) units support up to sixteen or twenty four directly connected server systems, however, this is by no means the limit. Thanks to an intelligent communication system, called Port Direct, many more server systems can be controlled by connecting other ServSwitch CX units. The combination of units can be arranged up to three levels deep forming a tree, or cascade arrangement, with server systems situated at any level within that cascade tree.

The maximum number of server systems that can be controlled within a cascade installation depends upon the ServSwitch CX unit placed at the top level. If the top level unit is a non-IP version, a maximum of 512 server systems can be controlled. However, if the top level unit is a ServSwitch CX with IP, the maximum number of servers drops to 128. This is due to the extra burden placed on the unit’s memory of administering global (IP) users.

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Cascade

level 1

Cascade

level 2

Cascade

level 3

MODEM	The cascade tree
/ISDN	The diagram shows how multiple ServSwitch CX units can be
	cascaded up to three levels. Server systems can be connected at any
	level. Up to four users (local, remote or global) can simultaneously
	access server systems situated around the cascade tree.
	User	User	User	User
	1	2	3	4

ServSwitch CX or ServSwitch CX with IP

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ServSwitch CX ServSwitch CX

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ServSwitch CX ServSwitch CX ServSwitch CX

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See also

•How cascade connections operate

•Addressing servers in a cascade

•Connecting ServSwitch CX units in cascade

•Testing specific links to cascaded servers

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