958-000289-001, June 2003)

Overview

30 Director 2/64 Installation Guide

Depending on device connections, G_Ports work as follows:

■ If the G_Port is attached to a Fibre Channel device, the port functions as a

fabric port (F_Port). An F_Port is the interface on a director that connects to a

device N_Port.

■ If the G_Port is attached to another director to form an Interswitch Link (ISL),

the port functions as an expansion port (E_Port). A multi-switch fabric is

formed through multiple directors and ISLs.

Figure 2 shows the faceplate of an UPM.

Figure 2: UPM card LEDs and connectors

1 Card LED

2 Port LEDs

3 Port Connectors

(G_Ports)

UPM