User Manual

32 Performing basic configuration tasks
2. Issue the fabricshow command.
Fabric information is displayed, including the domain ID (D_ID).
Example:
The fields in the fabricshow display are:
To set the domain ID:
1. Connect to the switch and log in as admin.
2. Issue the switchdisable command to disable the switch.
3. Issue the configure command.
4. Enter y after the Fabric Parameters prompt:
Fabric parameters (yes, y, no, n): [no] y
5. Enter a unique domain ID at the Domain prompt. Use a domain ID value from 1 through 239 for
normal operating mode (FCSW compatible). For example:
Domain: (1..239) [1] 3
6. Respond to the remaining prompts (or press Ctrl+d to accept the other settings and exit).
7. Issue the switchenable command to reenable the switch.
Linking through a gateway
A gateway merges SANs into a single fabric—by establishing point-to-point E_Port connectivity between
two Fibre Channel switches that are separated by a network—with a protocol such as IP or SONET.
Except for link initialization, gateways are transparent to switches; the gateway simply provides E_Port
connectivity from one switch to another.
By default, switch ports initialize links using the Exchange Link Parameters (ELP) mode 1. However,
gateways expect initialization with ELP mode 2. Therefore, to enable two switches to link through a
gateway, the ports on both switches must be set for ELP mode 2.
Any number of E_Ports in a fabric can be configured for gateway links, if these rules are followed:
• All switches in the fabric must be upgraded to Fabric OS v3.1.0 (or later) or v4.1.0 (or later).
• To prevent fabric segmentation, make sure that all switches in the fabric use the core PID format, as
described in ”To configure a link through a gateway:” on page 33.
switch:admin> fabricshow
Switch ID Worldwide Name Enet IP Addr FC IP Addr Name
-------------------------------------------------------------------------
3: fffc43 10:00:00:60:69:10:60:1f 192.168.64.187 0.0.0.0 “sw187”
2: fffc42 10:00:00:60:69:00:05:91 192.168.64.60 192.168.65.60 “sw60”
1:fffc41 10:00:00:60:69:00:02:0b 192.168.64.180 192.168.65.180 > “sw180”
The Fabric has 3 switches
Group ID Token
-----------------
0: fffb01 40:05:00:00:10:00:00:60:69:00:00:15
Switch ID The switch Domain_ID and embedded port D_ID.
Worldwide Name The switch WWN.
Enet IP Addr The switch Ethernet IP address.
FC IP Addr The switch FC IP address.
Name The switch symbolic name. An arrow (>) indicates the principal switch.