Logical Switches And Fabric Ids; Figure 18 Switch Before And After Creating Logical Switches - HP SN3000B Administrator's Manual

After you enable Virtual Fabrics, you can create up to seven additional logical switches, depending
on the switch model.
Figure 18
Before you create logical switches, the chassis appears as a single switch (default logical switch).
After you create logical switches, the chassis appears as multiple independent logical switches. All
of the ports continue to belong to the default logical switch until you explicitly move them to other
logical switches.
The default logical switch always exists. You can add and delete other logical switches, but you
cannot delete the default logical switch unless you disable Virtual Fabrics.
Before logical switch creation
FIGURE 18

Logical switches and fabric IDs

When you create a logical switch, you must assign it a fabric ID (FID). The fabric ID uniquely
identifies each logical switch within a chassis and indicates to which fabric the logical switch
belongs. You cannot define multiple logical switches with the same fabric ID within the chassis.
In Figure 19
respectively. These logical switches belong to different fabrics, even though they are in the same
physical chassis. For example, you could not assign logical switch 5 a fabric ID of 15, because
logical switch 3 is already assigned FID 15 in the chassis.
The default logical switch is initially assigned FID 128. You can change this value later.
NOTE
Each logical switch is assigned one and only one FID. The FID identifies the logical fabric to which
the logical switch belongs.
Fabric OS Administrator's Guide
53-1002446-01
shows a Virtual Fabrics-enabled switch before and after it is divided into logical switches.
Physical chassis
Default logical switch
P0 P3 P6 P9
P1 P4 P7
P2 P5 P8
Switch before and after creating logical switches
on page 214, logical switches 2, 3, 4, and 5 are assigned FIDs of 1, 15, 8, and 20,
Logical switch overview
After logical switch creation
Logical switch 1
(Default logical switch)
P0 P2 P4 P6 P8
P1 P3 P5 P7 P9
Logical switch 2
Logical switch 3
Logical switch 4
10
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