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Appendix B 507
Administration of MC/ServiceGuard
How MC/ServiceGuard Works
Figure B-5 MC/ServiceGuard Redundant Data and
Heartbeat Subnets
The heartbeat interval is set in the SG cluster configuration file.
Heartbeat time-out is the length of time that the SG cluster will wait for
a node’s heartbeat before performing a transfer of package.
Subnet B
Bridge
Package A
Package B
Package C
NODE 2
NODE 1
Primary LAN: Heartbeat/Data
Dedicated Heartbeat LAN
Subnet A
LAN 1
LAN 3
LAN 0
Standby LAN: Heartbeat/Data