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Fabric OS Administrator’s Guide
213
53-1002446-01
Logical switch overview
10
After you enable Virtual Fabrics, you can create up to seven additional logical switches, depending
on the switch model.
Figure 18
shows a Virtual Fabrics-enabled switch before and after it is divided into logical switches.
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.
FIGURE 18
Switch before and after creating logical switches
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
on page 214, logical switches 2, 3, 4, and 5 are assigned FIDs of 1, 15, 8, and 20,
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.
Before logical switch creation
After logical switch creation
Default logical switch
Physical chassis
P4
P3
P2
P1
P0
P9
P8
P7
P5
P6
Logical switch 4
Logical switch 1
(Default logical switch)
P4
P3
P2
P1
P0
P9
P8
P7
P5
P6
Logical switch 2
Logical switch 3
Summary of Contents for Fabric OS v7.0.1
Page 1: ...53 1002446 01 15 December 2011 Fabric OS Administrator s Guide Supporting Fabric OS v7 0 1 ...
Page 22: ...xxii Fabric OS Administrator s Guide 53 1002446 01 ...
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Page 214: ...176 Fabric OS Administrator s Guide 53 1002446 01 Management interface security 7 ...
Page 228: ...190 Fabric OS Administrator s Guide 53 1002446 01 Brocade configuration form 8 ...
Page 248: ...210 Fabric OS Administrator s Guide 53 1002446 01 Validating a firmware download 9 ...
Page 334: ...296 Fabric OS Administrator s Guide 53 1002446 01 Setting up TI over FCR sample procedure 12 ...
Page 360: ...322 Fabric OS Administrator s Guide 53 1002446 01 Encryption and compression example 14 ...
Page 404: ...366 Fabric OS Administrator s Guide 53 1002446 01 ...
Page 430: ...392 Fabric OS Administrator s Guide 53 1002446 01 Ports on Demand 18 ...
Page 502: ...464 Fabric OS Administrator s Guide 53 1002446 01 Buffer credit recovery 23 ...
Page 572: ...534 Fabric OS Administrator s Guide 53 1002446 01 Hexadecimal overview D ...
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