24 Service Manual (AA-RTDXC-TE, July 2004)

Repair Information

168 Edge Switch 2/24 Service Manual

IML, IPL, or Reset the Switch

This section describes procedures to IML, IPL, or reset the Edge Switch. An IML

or reset is performed at the switch front panel using the IML/RESET button. An

IPL is performed from the HAFM appliance (Element Manager application). The

EWS interface does not provide an IML, IPL, or switch reset function.

Caution: A reset should only be performed if a CTP card failure is indicated.

Do not reset the switch unless directed to do so by a procedural step or the

next level of support.

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 the IML and IPL operations:

■ Reload switch firmware from FLASH memory.

■ Reset the Ethernet LAN interface, causing the connection to the HAFM

appliance 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. It also reloads the

firmware from FLASH memory.

■ Ethernet LAN interface, causing the connection to the HAFM appliance 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. After the login, data frames lost during switch reset must be

retransmitted.