HP 24S Guide de l'utilisateur télécharger pdf (Page 10)

Features (continued)

Compatibility with the IEEE 802.3 Type 10Base-T standard and support for both

IEEE 802.3 and Ethernet protocols.

A self-test for fault identification when the hubs are powered on or when they are

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.

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. (HP 28688B and HP 28699A only.)

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.

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.

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 HP

28688B and HP 28699A can also be configured with an IP address and can

respond to an ICMP Echo Request packet (also called “Ping”).

The HP 28688B and HP 28699A 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 (HP 28688B and HP

28699A only) either from a PC attached to the console port, or over the network.

(See “Firmware Enhancements” later in this chapter.)

The HP 28684B can be upgraded to a managed HP 28688B Hub Plus by adding

the Upgrade Kit, HP part number J2351A.

1-2 Introducing the HP EtherTwist Hub/12, Hub Plus, and Hub Plus/48

1 2 ... 5 6 7 8 9 10 11 12 13 14 15 ... 101 102

Pas de commentaire

HP 24S Guide de l'utilisateur Page 10