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Fabric OS Administrator’s Guide
217
53-1002446-01
Logical fabric overview
10
Logical fabric and ISLs
Figure 23
shows two physical chassis divided into logical switches. In
Figure 23
, ISLs are used to
connect the logical switches with FID 1 and the logical switches with FID 15. The logical switches
with FID 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 FID 8.
FIGURE 23
Logical switches connected to other logical switches through physical ISLs
Figure 24
shows a logical representation of the configuration in
Figure 23
.
FIGURE 24
Logical switches connected to form logical fabrics
The ISLs between the logical switches are
dedicated ISLs
because they carry traffic only for a single
logical fabric. In
Figure 23
, Fabric 128 has two switches (the default logical switches), but they
cannot communicate with each other because they have no ISLs between them and they cannot
use the ISLs between the other logical switches.
NOTE
Only logical switches with the same FID can form a fabric. If you connect two logical switches with
different FIDs, the link between the switches segments.
Logical switch 8
Fabric ID 8
P9
Logical switch 7
Fabric ID 15
P7
Logical switch 6
Fabric ID 1
P4
Physical chassis 2
P8
P6
P5
P3
P2
P1
Switch
Logical switch 4
Fabric ID 8
P6
Logical switch 3
Fabric ID 15
P5
P4
Logical switch 2
Fabric ID 1
P3
P2
Logical switch 1
(Default logical switch)
Fabric ID 128
P1
Physical chassis 1
Logical switch 5
(Default logical switch)
Fabric ID 128
Fabric 128
Fabric 1
Fabric 15
Fabric 8
SW1
SW8
SW4
SW7
SW3
SW6
SW2
SW5
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 ...
Page 26: ...xxvi Fabric OS Administrator s Guide 53 1002446 01 ...
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Page 38: ...xl Fabric OS Administrator s Guide 53 1002446 01 ...
Page 40: ...2 Fabric OS Administrator s Guide 53 1002446 01 ...
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 ...
Page 584: ...546 Fabric OS Administrator s Guide 53 1002446 01 ...