HP manual Below shows a HyperFabric switch configuration with

Configuring HyperFabric

Configuring HyperFabric with ServiceGuard

	Figure 4-2 below shows a HyperFabric switch configuration with
	ServiceGuard. This example shows a four-node configuration with two
	HyperFabric switches, and redundant heartbeat Ethernet LANs.
NOTE	Because the HyperFabric network does not currently support
	ServiceGuard heartbeat connections, you must use an alternative type of
	connection for the heartbeat, such as FDDI, Token Ring, 100BaseT, or
	Ethernet (as shown in Figure 4-2).

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