Brocade Access Gateway Administrator's Guide - Supporting Fabric OS v5.3.0 (53-1000633-01, June 2007)

4 Access Gateway Administrator’s Guide
53-1000633-01
Port mapping
1
Table 1 Compares port configuration between Access Gateway with a typical fabric switch.
Port mapping
Brocade Access Gateway uses mapping—that is, pre-provisioned routes—to direct traffic from the
hosts to the fabric. When you first enable Access Gateway mode, the F_Ports are mapped to a set
of predefined N_Ports, see Appendix A, “Default Port Mapping”. After the initial setup, you can
manually change the mapping if required.
Figure 3 shows a mapping with eight F_Ports evenly mapped to four N_Ports on Brocade Access
Gateway. The N_Ports connect to the same fabric via different edge switches. This example is also
used to explain mapping, failover, and failback polices.
FIGURE 3 Example F_Port to N_Port mapping
TABLE 1 Port Configurations
Port Type Access Gateway Fabric switch
F_Port Yes Connects hosts to Brocade Access
Gateway.
Yes Connects devices, such as hosts, HBAs,
and storage to the fabric.
N_Port Yes Connects Access Gateway to a fabric
switch.
NA N_Ports are not supported.
E_Port
NA ISL is not supported.
1
1. The switch is logically transparent to the fabric, therefore it does not participate in the SAN as a fabric switch.
Yes Connects the switch to other switches to
form a fabric.
N_2
F_A2
Hosts
Access Gateway
Edge Switch
Fabric
(Switch_A)
enabled
NPIV
F_4
F_3
F_2
F_1
N_1
F_A1
enabled
NPIV
N_3
F_B1
enabled
NPIV
Host_1
Host_2
Host_3
Host_4
F_5
Host_5
F_6
Host_6
F_7
Host_7
F_8
Host_8
Edge Switch
(Switch_B)
N_4
F_B2
enabled
NPIV