HP B-series Embedded Switches Manual de usuario descargar pdf (Pagina 144)

Updating Switches to the Core PID Addressing

144 Fabric OS Procedures Version 3.1.x/4.1.x User Guide

About Fibre Channel Addressing

There are two addressing mechanisms used in Fibre Channel:

■ Port Identifier (PID) - The PID is analogous to specifying the physical

switch and port to which a device is attached in a network; it is not analogous

to an IP address. PIDs are assigned by a Fibre Channel switch when a device

logs into the fabric. A example PID might look like the following: 011F00.

There are numerous situations in which a device’s PID may change.

■ World Wide Name (WWN) - The WWN is analogous to an Ethernet MAC

address. WWNs are assigned by the factory when a device is manufactured,

and do not change. An example WWN might look like the following:

10:00:00:60:69:51:0e:8b.

The method that HP Fibre Channel switches use to assign PIDs differs between

the 16-port switches and the larger port count products.

The smaller port-count format is: XX1YZZ

The larger port-count format is XXYYZZ:

Table 9: 16-Port Count Addressing

Address Format Represents

XX1YZZ

XX Refers to the Domain ID

“1” Refers to a constant (based on a conservative reading

of the Fibre Channel standards)

“Y” Refers to a hexadecimal number, which specifies a

particular port on a switch.

ZZ Refers to the AL_PA.

Table 10: Larger Port Count Addressing

Address Format Represents

XXYYZZ

XX Refers to the Domain ID.

“YY” Represents a port (using the entire middle byte allows

addressing up to 256 ports per switch)

ZZ Refers to the AL_PA.

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HP B-series Embedded Switches Manual de usuario Pagina 144