Setting A Unique Domain Id; Cascaded Configuration, Two Switches; Cascaded Configuration, Three Switches - HP A7533A - Brocade 4Gb SAN Switch Base Administrator's Manual

Figure 19 and Figure 20
A to be configured for two-byte addressing and require IDID and fabric binding. It is recommended that
there are only 2 domains in a path from a FICON Channel interface to a FICON Control Unit interface.
Channel
A
Figure 19

Cascaded configuration, two switches

Channel
A
Figure 20

Cascaded configuration, three switches

Setting a unique domain ID

In a cascaded configuration, each switch must have a unique domain ID, and insistent domain ID (IDID)
mode must be enabled.
To set a unique domain ID and enable IDID mode:
1. Connect to the switch and log in as admin.
2. Verify that the switch has a unique domain ID. If it does not, set a unique domain ID.
For instructions on displaying and changing the domain ID, see
page 33.
3. Enter the switchDisable command to disable the switch.
4. Enter the configure command.
5. Enter y after the Fabric Parameters prompt.
6. To enable IDID mode, enter y after the "Insistent Domain ID Mode" prompt.
You can disable this mode by entering n.
Respond to the remaining prompts (or press Ctrl-d to accept the other settings and exit).
7.
266 Administering FICON fabrics
show two viable cascaded configurations. These configurations require Channel
Switch Switch
Domain ID = 21 Domain ID = 22
Switch Switch
Domain ID = 21 Domain ID = 22
Switch
Domain ID = 23
Control
Unit
B
Control
Unit
C
Control
Unit
D
"Working with Domain IDs" on