HP 100BaseT Guide de l'utilisateur télécharger pdf (Page 45)

HP 100Base-T Hubs Installation and Reference Guide

Installing the System 2-13

Hot Swap

The HP 100Base-T Hubs support a “hot swap” capability that

allows you to connect/disconnect hubs or media connectors

from the system with minimal disruption to the network. You

can remove any network cabling without affecting traffic

passing across the internal repeater bus. However, if the

Stacking Cable is disconnected at any point in the stack, or is

not properly terminated, all Ethernet and management traffic

passing through the cable will be disrupted.

When changing modules in the Expansion Slot, first disconnect

power to the concerned hub.

Configuring a Manageable Stack

To manage the stack with the VT-100 console interface, the

stack must include a Hub-12TXM (i.e., a unit with an SNMP

agent).

You should also consider adding a backup SNMP agent to

provide greater management reliability for critical applications.

The procedures required to install these system components are

described below.

Installing an SNMP Backup Agent

The VT-100 console interface

only provides access to the

private MIB.

Just add the Hub-12TXM(s) to the stack and let the system

automatically choose the Master agent and the backup agent

based on position in the Stacking Cable chain. The

Master

indicator on the device chosen as the primary agent will turn ON.

The

Backup indicator will turn ON for all other Hub-12TXMs.

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HP 100BaseT Guide de l'utilisateur Page 45