FW 07.00.00/HAFM SW 08.06.00 McDATA Sphereon 4500 Fabric Switch Installation and Service Manual (620-000159-320, April 2005)

Diagnostics
4-57
An IML and IPL are functionally equivalent. The operations do not
cause power-on diagnostics to execute and are not disruptive to Fibre
Channel traffic. Both operations:
• Reload switch firmware from FLASH memory.
• Reset the Ethernet LAN interface, causing the connection to
the management server to drop momentarily until the connection
automatically recovers.
A switch reset is more disruptive and resets the:
• Microprocessor and functional logic for the CTP card and reloads
the firmware from FLASH memory.
• Ethernet LAN interface, causing the connection to the
management server to drop momentarily until the connection
automatically recovers.
• Ports, causing all Fibre Channel connections to drop momentarily
until the connections automatically recover. This causes attached
devices to log out and log back in, therefore data frames lost
during switch reset must be retransmitted.
Switch IML
To IML the switch from the front panel:
1. Press and hold the IML/RESET button until the amber ERR LED
blinks at twice the unit beaoning rate (approximately three
seconds).
2. Release the button to IML the switch. During the IML, the
switch-to-management server Ethernet link drops momentarily
and the following occur at the Hardware View:
— As the network connection drops, the Sphereon 4500 Status
table turns yellow, the Status field displays No Link, and the
State field displays Link Timeout.
— The status bar at the bottom of the window displays a grey
square, indicating switch status is unknown.
— Illustrated FRUs disappear, and appear again as the
connection is re-established.