Dell PowerVault 50F (Fibre Channel Switch) - Manual (Page 24)

1-4 Dell PowerVault 51F 8-Port Fibre Channel Switch User’s Guide
low-latency data path within the switch. The frame can be temporarily stored in the
memory bank but only if the transmit port is busy.
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The switch is manufactured with eight universal ports (U_Ports). Universal ports pro-
vide the greatest amount of flexibility when building a fabric because the ports
automatically and dynamically configure themselves to operate in E_Port, F_Port, or
FL_Port mode during port installation. The ports negotiate from the FL_Port to the
higher-performing F_Port if the attached device supports both modes.
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The embedded port, which is a logical N_Port, is based on a microcontroller and is
responsible for:

Fibre Channel link control

Switch management

Routing table management

Address assignment and management functions

Management of Class F services and the related protocols as defined in the Fibre
Channel Standard
The embedded port also functions as a Simple Network Management Protocol
(SNMP) agent, a Fibre Channel Name Server, and an Alias Server to manage multicast
and broadcast functions.
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Included with the switch is firmware that can be customized and tuned for each instal-
lation. Dell has provided a standard set of commands and interfaces described in
“PowerVault 51F Commands” of the Dell PowerVault 51F 8-Port Fibre Channel Switch
Installation and Troubleshooting Guide for switch monitoring, control, and
management.
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The SWL fiber-optic GBIC module is based on short wavelength CD lasers supporting
1.0625-Gbps link speeds. This GBIC module supports 50-micrometer and
62.5-micrometer multimode fiber and is supported only in non-OFC (Open Fibre
Connection) mode. 50/125-micrometer cables up to 500 meters (m) in length and
62.5/125-micrometer cables up to 175 m in length are supported.
NOTE: The SWL GBIC module uses a Class 1 CD laser, which complies with the 21
CFR, subpart (J) as of the date of manufacture.