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Features (continued)

Compatibility with the IEEE 802.3 Fiber-Optic Inter-Repeater Link (FOIRL) standard

and support for both IEEE 802.3 and Ethernet protocols.

Automatic segmentation of ports that are experiencing network communication

problems. This improves network integrity and aids in fault isolation. Segmented ports

automatically resume operation when the problems are corrected. (See

“Auto-Segmentation” later in this chapter.)

Support for a backup link to another hub (an automatically-activated redundant

connection) to enhance network fault tolerance.

A self-test for fault identification when the hub is powered on or when reset from the

console or from a network management station.

LEDs on both the front and back panels for easy interpretation of the hub’s status.

A power supply that automatically adjusts to the voltage range of the ac power being

supplied to the hub (90-120 volts or 200-240 volts). No voltage range setting or fuse

change is needed.

A factory assigned station address (also called MAC address, Ethernet address, or

physical address) allowing the hub to respond to 802.2 Test packets. The hub can also

be configured with an IP address and can respond to an ICMP Echo Request message

(also called “Ping”).

Can be managed remotely from a network management station that supports SNMP

over IP (using the configured IP address) or IPX. (See “Network Management” later in

this chapter.)

Can be downloaded with new firmware enhancements either from a PC attached to the

console port or over the network. (See “Firmware Enhancements” later in this chapter.)

Comes with metal brackets that can be easily attached to the hub for mounting it in a

standard 19-inch telco rack or on a wall.

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