24 Installation Guide (AA-RTDWE-TE, November 2005)

Table Of Contents

Introduction to the Edge Switch 2/2418

• Initial machine load (IML) button

When the IML button is pressed and held for three seconds, the Edge Switch performs an IML

procedure that takes approximately 30 seconds and resets the following:

• Microprocessor and functional logic for the control processor (CTP) (and firmware is loaded

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.

An IML should be performed only if a CTP failure is indicated. Do not perform an IML on the

Edge Switch unless directed to do so by a procedural step in this manual or by the next level of

support. As a precaution, the IML button is flush mounted to protect against accidental

activation.

• SFP fiber-optic connectors

A single-mode or multimode fiber-optic cable attaches to a port through an SFP transceiver. The

SFP transciever provides a duplex LC interface and can be detached from the Edge Switch port

for easy replacement. Two fiber-optic transceiver types are available:

• Short-wave laser—Short-wave laser SFP transceivers provide short-distance connections (2 to

500 meters) through 50-micron or 62.5-micron multimode fiber.

• Long-wave laser—Long-wave laser SFP transceivers provide long-distance connections (up to

10 kilometers) through 9-micron single-mode fiber.

• Extended long-wave laser—Extended long-wave laser SFP transceivers provide long-distance

connections (up to 35 kilometers) through 9-micron single-mode fiber.

• Port LEDs

Amber and green/blue LEDs to the left of each Fibre Channel port illuminate, extinguish, or

blink to indicate port status and port speed:

• Amber LED illuminates to indicate a port failure.

• Green/blue LED illuminates:

• Green to indicate 1.0625 Gbps port operation

• Blue to indicate 2.125 Gbps port operation