Port Mapping - Brocade Communications Systems Gateway Administrator's Manual

1

Port mapping

Table 1
TABLE 1
Port Type
F_Port
N_Port
E_Port
1.

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
manually change the mapping if required.
Figure 3
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
4
Compares port configuration between Access Gateway with a typical fabric switch.
Port Configurations
Access Gateway
Yes Connects hosts to Brocade Access
Gateway.
Yes Connects Access Gateway to a fabric
switch.
NA ISL is not supported.
The switch is logically transparent to the fabric, therefore it does not participate in the SAN as a fabric switch.
Appendix A, "Default Port
shows a mapping with eight F_Ports evenly mapped to four N_Ports on Brocade Access
Hosts
Host_1
F_1
Host_2
F_2
Host_3
F_3
Host_4
F_4
Host_5
F_5
Host_6
F_6
Host_7
F_7
Host_8
F_8
Example F_Port to N_Port mapping
Fabric switch
Yes
NA
1
Yes
Mapping". After the initial setup, you can
Access Gateway
N_1
N_2
N_3
N_4
Connects devices, such as hosts, HBAs,
and storage to the fabric.
N_Ports are not supported.
Connects the switch to other switches to
form a fabric.
Fabric
Edge Switch
(Switch_A)
F_A1
NPIV
enabled
F_A2
NPIV
enabled
Edge Switch
(Switch_B)
F_B1
NPIV
enabled
F_B2
NPIV
enabled
Access Gateway Administrator's Guide
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