Setup Guide

FIGURE 4 Diagnostic port configurations
The following table shows a comparison of port configurations between AG devices and a standard fabric switch.
TABLE 4 Port configurations
Port type Available on Access Gateway? Available on Fabric switch?
F_Port Yes Connects hosts and targets
to Access Gateway.
Yes Connects devices, such as
hosts, HBAs, and storage to
the fabric.
N_Port Yes Connects Access Gateway
to a fabric switch.
N/A N_Ports are not supported.
E_Port N/A ISL is not supported.
2
Yes Connects the switch to
other switches to form a
fabric.
D_Port Yes Allows diagnostic testing
across link to connected AG
device, fabric switch, or
HBA.
Yes Allows diagnostic testing
across link to connected AG
device.
Access Gateway hardware considerations
Hardware considerations for Access Gateway devices are as follows:
∙ The Access Gateway feature is supported on the switch platforms and embedded switch platforms listed in Supported
hardware and software.
∙ Loop devices are not supported.
∙ Direct connections to SAN target devices are supported only when the AG device is connected to a fabric. Cascaded AG
devices do not support SAN target devices.
2
The switch is logically transparent to the fabric, therefore it does not participate in the SAN as a fabric switch.
Access Gateway Basic Concepts
Brocade Fabric OS Access GatewayAdministration Guide
24 53-1004110-01