Logical Fabric And Isls; Figure 26 Logical Switches Connected To Other Logical Switches Through Physical Isls; Figure 27 Logical Switches Connected To Form Logical Fabrics - Brocade Communications Systems 53-1001763-02 Administrator's Manual

You connect logical switches to other logical switches in two ways:
•
•

Logical fabric and ISLs

Figure 26
In Figure
with fabric ID 15. The logical switches with fabric ID 8 are each connected to a non-Virtual Fabrics
switch. The two logical switches and the non-Virtual Fabrics switch are all in the same fabric, with
fabric ID 8.
FIGURE 26
Figure 27
FIGURE 27
The ISLs between the logical switches are dedicated ISLs because they carry traffic only for a single
logical fabric. In
cannot communicate with each other because they have no ISLs between them and they cannot
use the ISLs between the other logical switches.
Fabric OS Administrator's Guide
53-1001763-02
Using ISLs
Using base switches and shared ISLs
shows two physical chassis divided into logical switches.
26, ISLs are used to connect the logical switches with fabric ID 1 and the logical switches
Physical chassis 1
P1
Logical switch 1
(Default logical switch)
Fabric ID 128
P2
Logical switch 2
Fabric ID 1
P3
P4
Logical switch 3
Fabric ID 15
P5
P6
Logical switch 4
Fabric ID 8
Logical switches connected to other logical switches through physical ISLs
shows a logical representation of the configuration in
Fabric 128
SW1
SW5
SW2
Logical switches connected to form logical fabrics
Figure 26, Fabric 128 has two switches (the default logical switches), but they
Switch
Fabric 15
SW3
SW7
Fabric 1
SW6
Logical fabric overview
Physical chassis 2
P1
Logical switch 5
(Default logical switch)
Fabric ID 128
P2
Logical switch 6
Fabric ID 1
P3 P4
P5
P7
Logical switch 7
Fabric ID 15
P6
P8
P9
Logical switch 8
Fabric ID 8
Figure 26.
Fabric 8
SW4
SW8
10
215