Users Guide

Table Of Contents
Stacking 287
Figure 8-15. NSF and a Storage Area Network
When the management unit in the stack fails, session A drops. The initiator
at 10.1.1.10 detects a link down on its primary NIC and attempts to
reestablish the session on its backup NIC to a different IP address on the disk
array. The hardware forwards the packets to establish this new session, but
assuming the session is established before the control plane is restarted on the
backup unit, the new session receives no priority treatment in the hardware.
Session B remains established and fully functional throughout the restart and
continues to receive priority treatment in the hardware.