HP StorageWorks 2.128 SAN Director Switch - Manual (Page 33)

Fabric OS 5.x administrator guide 33
The fields in the
fabricShow
display are:
•
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.
Setting 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):
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 (also called ISL R_RDY mode). 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, provided the following rules
are followed:
• All switches in the fabric must be upgraded to Fabric OS 3.1.0 or later, or to 4.1.0 or later.
• To prevent fabric segmentation, make sure that all switches in the fabric are using the core PID format,
as described in section ” Configuring a link through a gateway ” next.
• When determining switch count maxima, include the switches connected to both sides of the gateway.
• Extended links (those created using the Extended Fabrics licensed feature) and the security features in
Secure Fabric OS are not supported through gateway links.
Configuring a link through a gateway
1. If you are not sure that the PID format is consistent across the entire fabric, issue the
configShow
command on all switches to check the PID settings. If necessary, change the PID format on any
non-conforming switches, as described in ” Configuring the PID format ” on page 213.
2. Connect to the switch on one end of the gateway and log in as admin.